Intended audience: administrators, developers, Programming language: C++

HDB++ Design and implementation

Author: Lorenzo Pivetta

Below, details on deployment and configuration of the HDB++ service are provided. For overview, see HDB++ of Tools and Extensions section.

Contents

• HDB++ Design and implementation
  • HDB++ Contributions
  • Historical Database
  • HDB++ TANGO Device Server
    • Event Subscriber interface
      • Commands
      • Attributes
      • Class properties
      • Device properties
    • Configuration Manager interface
      • Commands
      • Attributes
      • Class properties
      • Device properties
  • Configuration and diagnostic tools
  • Database interface
    • database structure
  • Deployment best practices
  • General remarks
  • Project references and source code
  • Legacy HDB tables structure
  • schema SQL source (MySQL)
  • schema CQL source (Cassandra)
  • Event Subscriber full documentation
  • Configuration Manager full documentation

HDB++ Contributions

Summary

The is a novel device server for Historical Data Base (HDB) archiving. It’s written in C++ and is fully event-driven.

Contributions

R. Bourtembourg, J.M. Chaize, F.Poncet, J.L. Pons, P.Verdier - ESRF

C.Scafuri, G.Scalamera, G.Strangolino, L.Zambon - ELETTRA

Revisions

Date	Rev.	Author
2012-12-04	1.0	L.Pivetta	First release
2013-01-29	1.1	L.Pivetta	Merged suggestions from ESRF
2013-01-31	1.2	L.Pivetta	Cleanup
2013-05-10	1.3	L.Pivetta	Revision after HDB++ meeting on 2013.03.14
2014-01-30	1.4	L.Pivetta	details + Extraction library
2014-03-07	1.5	L.Pivetta	Database interface
2014-05-05	1.6	L.Pivetta	Cleanup, full ES and CM doc
2014-07-28	1.7	L.Pivetta	Revision after HDB++ meeting on 2014.06.25
2016-08-12	1.8	L.Pivetta	Revision after HDB++ meeting on 2016.05.10

Historical Database

The Historical Database is a tool that allows to store the values of Attributes into a database. The core implements an event-based interface to allow device servers to publish the data to be archived. The archive event can be triggered by two mechanisms:

• delta_change: the attribute value changed significantly
• periodic: at a fixed periodic interval

The configuration parameters of each attribute, i.e. polling period, delta change thresholds, archiving period, are defined as properties in the database. In addition the archive event can be manually pushed from the device server code.

For additional information concerning the event subsystem please refer to The Control System Manual Version 9.2.

HDB++ TANGO Device Server

The architecture is composed by several TANGO devices. More in detail, at least one, but actually many, EventSubscriber TANGO device jointly with one ConfigurationManager device TANGO and one or more DataExtraction TANGO device are foreseen in a TANGO facility.

The EventSubscriber device, also called archiver device, will subscribe to archive events on request by the ConfigurationManager. The EventSubscriber will be able to start archiving all the already configured events even if the ConfigurationManager is not running. The EventSubscriber device must have the following characteristics:

1. the archiving mechanism is event-based, thus the EventSubscriber device tries to subscribe to the event; an error means a fault. A transparent re-subscription to the faulty event is required.
2. one additional thread is in charge of events subscription and call-back execution; the call back, acting as producer, must put the complete data of the received events in a FIFO queue; the thread and the callback must be able to handle an arbitrary number of events, possibly limited just by the available memory and/or the required performance; moreover, a high-mark threshold must be setup on the FIFO in order to alert for an overloaded Event Subscriber
3. one additional thread, acting as consumer of the FIFO, is in charge of pushing the data into the database back-end, preserving the event data time-stamp; the code to access the database engine shall be structured to allow the use of different back-ends (MySQL, Oracle, etc…)
4. the device server methods, commands and attributes, must allow to perform the following operations:
   • start the archiving for all attributes
   • stop the archiving for all attributes
   • start the archiving for one attribute
   • stop the archiving for one attribute
   • read the number of attributes in charge
   • read the list of attributes in charge
   • read the configuration parameters of each attribute
   • read the number of working attributes
   • read the list of working attributes
   • read the number of faulty attributes
   • read the list of faulty attributes with diagnostics
   • read the size of the FIFO queue
   • read the number of attributes pending in the FIFO
   • read the list of attributes pending in the FIFO

The list of attributes in charge of each EventSubscriber is stored in the database as property of the device.

The EventSubscriber device must be able to run and report on the working/faulty attributes/events by means of the standard API (commands and/or attributes) without the need of a graphical interface.

The diagnostics of faults could also be stored in the general info about each attribute; the diagnostics are used by the EventSubscriber device itself to detect that some data is not being stored as requested. Moreover, whenever the archive event period for a given Attribute has been configured, the device server checks that at least the one archive event/period is received; if not, a error is raised and the Attribute marked as faulty (NOK).

Stopping the archiving of an attribute does not persist after a restart, i.e. restarting an EventSubscriber device instance triggers the archiving of all configured attributes. A property can be setup not to start archiving at startup.

Note: A new Context based mechanism has been introduced to label and automatically start/stop archiving for groups of attributes depending on the specified archiving strategy. See Context description below.

One NULL value with time stamp is inserted whenever the archiving of an attribute is stopped, due to error or by a specific stop command. Moreover, if an error occurred, the corresponding attribute is marked as faulty in the archiving engine and the error description stored. In case the archiving was suspended due to error, it is automatically resumed when good data is available again. The quality factor of the attribute is also stored into the historical database. One or more alarms can be configured in the Alarm System to asynchronously inform about the status of the archiving devices.

Some of the attribute configuration parameters, such as display-unit, format-string and label will also be available in the archive back-end and updated by means of the attribute configuration change event.

A mechanism to specify per-attribute archiving strategies, called context, has been defined ad added to the EventSubscriber. The syntax of the AttributeList Property has been modified to support a name=value syntax for the context, except for the Attribute name; fields are separated by semicolon. Keeping the current syntax for the attribute field allows for unchanged backwards compatibility:

$ tango://srv-tango-srf.fcs.elettra.trieste.it:20000/eos/climate/18b20 eos.01/State;strategy=RUN|SHUTDOWN

The labels for the context, implemented as enum, are defined in a free property, and/or in the class property and/or in the device property, with increasing priority. The defaults values, as well as the default context, are pre-defined but can be modified by the user. The default values are shown in table.

label	value
ALWAYS	0
RUN	1
SHUTDOWN	2
SERVICE	3

Table 1: Context default labels.

Whenever not specified the default context is ALWAYS. A new memorized attribute, named Context, written by upper layer logic, tells the archiver about the current context status or rather the required context transition. Being a memorized Attribute, the Context attribute needs to be written at least once before the EventSubscriber device actually starting archiving. This means that, once the device has been deployed, and the AttributeList pupulated with the relevant attributes to be archived, complete with the strategy, the appropriate label has to be written in Context.

The device server shall also expose some additional figures of merit such as:

• for each instance, total number of records per time
• for each instance, total number of failures per time
• for each attribute, number of records per time
• for each attribute, number of failures per time
• for each attribute, time stamp of last record

The system can sum these numbers in a counter which can be reset every period to rank each attribute in term of data rate, error rate etc. This allows preventive maintenance and fine tuning, detecting, for instance, when an attribute is too verbose (e.g. variation threshold below the noise level). These statistics are a key element for qualifying the health of the system. All these attributes will be themselves archived to enable a follow-up versus time.

The device server must maintain at least the following operating states:

• ON: archiving running, everything works
• ALARM: one or more attributes faulty or the FIFO size grows above high-mark threshold
• FAULT: all attributes faulty
• OFF: archiving stopped

Event Subscriber interface

More in detail the device server interface is summarized in table 2 and table 3.

Commands

AttributeAdd	add an attribute to archiving; the complete FQDN has to be specified otherwise it is completed by the using getaddrinfo()
AttributeContext	read the specified attribute current context
AttributePause	pause archiving specified attribute but do not unsubscribe archive event
AttributeRemove	remove an attribute from archiving; the archived data and the attribute archive event configuration are left untouched
AttributeStatus	read attribute status
AttributeStart	start archiving specified attribute
AttributeStop	stop archiving specified attribute, unsubscribe archive event
AttributeUpdate	update context of an already archived attribute
Pause	pause archiving all attributes but do not unsubscribe archive events
Start	start archiving
Stop	stop archiving, usubscribe all archive events
ResetStatistics	reset statistics

Table 2: Event Subscriber Command.

Attributes

AttributeContextList	return the list of attribute contexts
AttributeErrorList	return the list of attribute errors
AttributeEventNumberList	number of events received for each attribute
AttributeFailureFreq	total number of failures per time
AttributeFailureFreqList	per-attribute number of failures per time
AttributeList	return configured attribute list
AttributeMaxPendingNumber	maximum number of attributes waiting to be archived
AttributeMaxProcessingTime	max processing time
AttributeMaxStoreTime	max storing time
AttributeMinProcessingTime	min processing time
AttributeMinStoreTime	min storing time
AttributeNokList	return the list of attribute in error
AttributeNokNumber	number of archived attribute in error
AttributeNumber	number of attributes configured for archiving
AttributeOkList	return the list of attributes not in error
AttributeOkNumber	number of archived attributes not in error
AttributePausedList	list of paused attributes
AttributePausedNumber	number of paused attributes
AttributePendingList	list of attributes waiting to be archived
AttributePendingNumber	number of attributes waiting to be archived
AttributeRecordFreq	total number of records per time
AttributeRecordFreqList	per-attribute number of records per time
AttributeStartedList	list of started attributes
AttributeStartedNumber	number of started attributes
AttributeStoppedList	list of stopped attributes
AttributeStoppedNumber	number of stopped attributes
Context	archiver current context (r/w)
StatisticsResetTime	seconds elapsed since last statistics reset

Table 3: Event Subscriber Attributes.

The class and device properties availabile for configuration are shown in table. According to TANGO device server design guidelines Device Properties, when defined, override Class properties. Please note that class and device Properties have changed since release of the TANGO device server.

Class properties

CheckPeriodicTimeoutDelay	delay before timeout when checking periodic events, in seconds
PollingThreadPeriod	default period for polling thread, in seconds
LibConfiguration	configuration parameters for backend support library
HdbppContext	definition of possible archiver operating contexts
DefaultContext	archiver default context
StartArchivingAtStartup	start archiving at startup
StatisticsTimeWindow	timeslot for statistics in seconds
SubscribeRetryPeriod	retry period for subscribe event, in seconds

Table 4: Event Subscriber Class properties.

The LibConfiguration property contains the following multi-line configuration parameters host, user, password, dbname, libname, port. Table shows example configuration parameters for backend:

host=srv-log-srf.fcs.elettra.trieste.it

user=hdbarchiver

password=myownpassword

dbname=hdbpp

libname=dependOnDatabase (see below)

port=3306

Table 5: LibConfiguration parameters for database.

Note

libname should be set to one of the following values:

libname=libhdb++mysql.so if you intend to use HDB++ with the MySQL backend libname=libhdbmysql.so if you intend to use HDB++ with the MySQL Legacy backend libname=libhdb++cassandra.so if you intend to use HDB++ with the Cassandra backend

The library specified in LibConfiguration->libname is loaded dynamically by the EventSubscriber device (e.g. hdb++-es-srv). You need to have your LD_LIBRARY_PATH environment variable correctly set (including the directory where the library you intend to use is located).

libhdb++mysql and libhdb++cassandra are just implementations of the classes defined in libhdb++ library. The user can decide which implementation to use by specifying this LibConfiguration -> libname device property config parameter.

The device dynamically laods the configured library configured (using dlopen()) during the device initialization. See Database interface section for more information.

The HdbppContext property contains the enum specifying the possible user-defined operating contexts in the form number:label. The default values are:

0:ALWAYS

1:RUN

2:SHUTDOWN

3:SERVICE

Table 6: HdbppContext enum default values.

Device properties

AttributeList	list of configured attributes
CheckPeriodicTimeoutDelay	delay before timeout when checking periodic events, in seconds
PollingThreadPeriod	default period for polling thread, in seconds
LibConfiguration	configuration parameters for backend support library
HdbppContext	definition of possible archiver operating contexts
DefaultContext	archiver default context
StartArchivingAtStartup	start archiving at startup
StatisticsTimeWindow	timeslot for statistics
SubscribeRetryPeriod	retry period for subscribe event, in seconds

Table 7: Event Subscriber Device properties.

In addition to the already described Class properties, device Properties comprehend the AttributeList property which contains the list of attributes in charge of the current device. The sintax is fully-qualified-attribute-name;context=CONTEXT where CONTEXT can be one or a combination of the defined contexts (logic OR). Whenever not specified the DefaultContext specified in the Class property or in the Device Property applies. Table shows some examples:

$ tango://srv-tango-srf.fcs.elettra.trieste.it:20000/eos/climate/18b20 eos.01/State;context=RUN|SHUTDOWN
$ tango://srv-tango-srf.fcs.elettra.trieste.it:20000/eos/climate/18b20 eos.01/Temperature;context=RUN|SHUTDOWN
$ tango://srv-tango-srf.fcs.elettra.trieste.it:20000/ctf/diagnostics/ccd_ctf.01/State;context=RUN
$ tango://srv-tango-srf.fcs.elettra.trieste.it:20000/ctf/diagnostics/ccd_ctf.01/HorProfile;context=RUN
$ tango://srv-tango-srf.fcs.elettra.trieste.it:20000/ctf/diagnostics/ccd_ctf.01/VerProfile;context=RUN

Table 8: AttributeList example

The first two attributes will be archived in both RUN and SHUTDOWN contexts; the last three only when in RUN.

In order to address large archiving systems the need to distribute the workload over a large number of shows up. A device server will assist in the operations of adding, editing, moving, deleting an attribute the archiving system. All the configuration parameters, such as polling period, variation thresholds etc., are kept in the database as properties of the archived attribute. In order to be managed by the device server each instance has to added to the pool using the ArchiverAdd command.

The device server shall be able to perform the following operations on the managed pool:

1. manage the request of archiving a new attribute
   • create an entry in the HDB++ if not already done
   • setup the attribute’s archive event configuration
   • assign the new attribute to one of the device servers
     • following some rules of load balancing
     • to the specified device server
2. move an attribute from an device server to another one
3. keep trace of which attribute is assigned to which
4. start/stop the archiving of an attribute at runtime
5. remove an attribute from archiving

The configuration shall be possible via the device server API as well as via a dedicated GUI interface; the GUI just use the provided API.

The may also expose a certain number of attributes to give the status of what is going on:

• total number of
• total number of working attributes
• total number of faulty attributes
• total number of calls per second

These attributes could be themselves archived to enable a follow up versus time.

Configuration Manager interface

More in detail the device server exposes the following interface.

Commands

The commands availabile in the are summarized in commands-table.

ArchiverAdd	add a new instance to the archivers list; the instance must have been already created and configured via jive/astor and the device shall be running; as per release adding an device to an existing instance is not supported
ArchiverRemove	remove an from the list; neither the device instance nor the attributes configured are removed from the database
AttributeAdd	add an attribute to archiving
AttributeAssign	assign attribute to
AttributeGetArchiver	return in charge of attribute
AttributePause	pause archiving specified attribute
AttributeRemove	remove an attribute from archiving; the archived data and the attribute archive event configuration are left untouched
AttributeSearch	return list of attributes containing input pattern
AttributeStart	start archiving an attribute
AttributeStatus	read attribute archiving status
AttributeStop	stop archiving an attribute
AttributeUpdate	update context of an already archived attribute
Context	set context to all managed archivers
ResetStatistics	reset statistics of and all

Table 9: Configuration Manager Commands.

Note that the list of managed is stored into the ArchiverList device property that is maintained via the ArchiverAdd, ArchiverRemove and AttributeSetArchiver commands. Therefore in the archiving system the device server instances can also be configured by hand, if required, an run independently.

Attributes

The attributes of the are summarized in attributes-table.

ArchiverContext	return archiver context
ArchiverList	return list of managed archivers
ArchiverStatisticsResetTime	seconds elapsed since last statistics reset
ArchiverStatus	return archiver status information
AttributeFailureFreq	total number of failures per time
AttributeMaxPendingNumber	max number of attributes waiting to be archived (all archivers)
AttributeMaxProcessingTime	max processing time (all archivers)
AttributeMaxStoreTime	max storing time (all archivers)
AttributeMinProcessingTime	min processing time (all archivers)
AttributeMinStoreTime	min storing time (all archivers)
AttributeNokNumber	total number of archived attribute in error
AttributeNumber	total number of attributes configured for archiving
AttributeOkNumber	total number of archived attribute not in error
AttributePausedNumber	total number of paused attributes
AttributePendingNumber	total number of attributes waiting to be archived
AttributeRecordFreq	total number of records per time
AttributeStartedNumber	total number of started attributes
AttributeStoppedNumber	total number of stopped attributes
SetAbsoluteEvent	set archive absolute thresholds; for archiving setup
SetArchiver	support attribute for setup
SetAttributeName	support attribute for setup
SetCodePushedEvent	specify event pushed in the code
SetContext	set archiving context; for archiving setup
SetPeriodEvent	set archive period; for archiving setup
SetPollingPeriod	set polling period; for archiving setup
SetRelativeEvent	set archive relative thresholds; for archiving setup
SetTTL	set time-to-live for temporary storage; for archiving setup

Table 10: Configuration Manager Attributes.

The SetXxxYyy attributes are used for archive event and archiver instance configuration setup and must be filled before calling the AttributeAdd command. The AttributeAdd checks the consistency of the desired event configuration and then adds the new attribute to the archiver instance specified with SetArchiver. Then the AttributeAdd command creates the required entries into the historical database.

Class properties

LibConfiguration	configuration parameters for backend support library
MaxSearchSize	max size for AttributeSearch result

Table 11: Event Subscriber Class properties.

Device properties

ArchiverList	list of existing archivers
LibConfiguration	configuration parameters for backend support library
MaxSearchSize	max size for AttributeSearch result

Table 12: Configuration Manager device properties.

Configuration and diagnostic tools

With all the statistics kept in the device servers and the device server, the diagnostic tool can be straightforward to develop as a simple QTango or ATK GUI. This GUI will also give read access to the configuration data stored as attribute properties in the database to display the attribute polling frequency of the involved device servers, whenever available, and the archive event configuration. The HDB++ Configurator GUI is available for archiving configuration, management and diagnostics. It is written in Java. Refer to the documentation page for any additional information:

HDB++ Configuration GUI documentation Download GUI jar file

Database interface

A C++ API will be developed to address the writing and reading operations on the database and made availabile as a library. This library will provide the essential methods for accessing the database. The , the , the device servers, library and tools will eventually take advantage of the library. Actually a number of libraries are already available to encapsulate database access decouple the :

libhdb++	:	abstraction layer
libhdb++mysql	:	table support, MySQL
libhdb++cassandra	:	table support, Cassandra
libhdbmysql	:	legacy HDB table support, MySQL

Table 13: Available database interfacement libraries.

Additional libraries are foreseen to support different database engines, such as Oracle, Postgres or possibly noSQL implementations.

Note

The Cassandra Error: “All connections on all I/O threads are busy” is connected with incorrect name of Data Center. For example, the correct name is “datacenter1” but libhdbpp-cassandra have default value “DC1”. To change this value you should add to LibConfiguration property: local_dc =datacenter1

database structure

The structure of the legacy HDB is based on three tables, (adt, amt, apt) shown in appendix. In addition, one table, named att_xxxxx is created for each attribute or command to be archived. Many of the columns in the lagacy tables are used for storing HDB archiving engine configuration parameters and are no more required.

The new database structure, whose tables have been designed for the archiver, provides just the necessary columns and takes advantage of microsecond resolution support for daytime. Three SQL scripts are provided to create the necessary database structure for MySQL or Cassandra backend:

create_hdb_mysql.sql	:	legacy HDB MySQL schema
create_hdb++_mysql.sql	:	MySQL schema
create_hdb_cassandra.sql	:	Cassandra schema

Table 14: Database setup scripts.

The att_conf table associates the attribute name with a unique id and selects the data type; it’s worth notice that the att_name raw always contains the complete FQDN, e.g. with the hostname and the domainname.

mysql> desc att_conf;
+-----------------------+------------------+------+-----+---------+----------------+
| Field                 | Type             | Null | Key | Default | Extra          |
+-----------------------+------------------+------+-----+---------+----------------+
| att_conf_id           | int(10) unsigned | NO   | PRI | NULL    | auto_increment |
| att_name              | varchar(255)     | NO   | UNI | NULL    |                |
| att_conf_data_type_id | int(10) unsigned | NO   | MUL | NULL    |                |
| att_ttl               | int(10) unsigned | YES  |     | NULL    |                |
| facility              | varchar(255)     | NO   |     |         |                |
| domain                | varchar(255)     | NO   |     |         |                |
| family                | varchar(255)     | NO   |     |         |                |
| member                | varchar(255)     | NO   |     |         |                |
| name                  | varchar(255)     | NO   |     |         |                |
+-----------------------+------------------+------+-----+---------+----------------+

The att_conf_data_type table creates an unique ID for each data type.

mysql> desc att_conf_data_type;
+-----------------------+------------------+------+-----+---------+----------------+
| Field                 | Type             | Null | Key | Default | Extra          |
+-----------------------+------------------+------+-----+---------+----------------+
| att_conf_data_type_id | int(10) unsigned | NO   | PRI | NULL    | auto_increment |
| data_type             | varchar(255)     | NO   |     | NULL    |                |
| tango_data_type       | tinyint(1)       | NO   |     | NULL    |                |
+-----------------------+------------------+------+-----+---------+----------------+

The att_history table stores the timestamps relevant for archiving diagnostics together with the att_history_event. The copmplete list of supported TANGO data types is shown in table [db:datatypes]. As an example the table att_scalar_devlong_rw, for archiving one value, is also shown below. Three timestamp rows are currently supported: the datum timestamp, the receive time timestamp and the database insertion timestamp.

mysql> desc att_history;
+----------------------+------------------+------+-----+---------+-------+
| Field                | Type             | Null | Key | Default | Extra |
+----------------------+------------------+------+-----+---------+-------+
| att_conf_id          | int(10) unsigned | NO   | MUL | NULL    |       |
| time                 | datetime(6)      | NO   |     | NULL    |       |
| att_history_event_id | int(10) unsigned | NO   | MUL | NULL    |       |
+----------------------+------------------+------+-----+---------+-------+

mysql> desc att_history_event;
+----------------------+------------------+------+-----+---------+----------------+
| Field                | Type             | Null | Key | Default | Extra          |
+----------------------+------------------+------+-----+---------+----------------+
| att_history_event_id | int(10) unsigned | NO   | PRI | NULL    | auto_increment |
| event                | varchar(255)     | NO   |     | NULL    |                |
+----------------------+------------------+------+-----+---------+----------------+

mysql> desc att_scalar_devlong_rw;
+-------------------+------------------+------+-----+----------------------------+-------+
| Field             | Type             | Null | Key | Default                    | Extra |
+-------------------+------------------+------+-----+----------------------------+-------+
| att_conf_id       | int(10) unsigned | NO   | MUL | NULL                       |       |
| data_time         | timestamp(6)     | NO   |     | 0000-00-00 00:00:00.000000 |       |
| recv_time         | timestamp(6)     | NO   |     | 0000-00-00 00:00:00.000000 |       |
| insert_time       | timestamp(6)     | NO   |     | 0000-00-00 00:00:00.000000 |       |
| value_r           | int(11)          | YES  |     | NULL                       |       |
| value_w           | int(11)          | YES  |     | NULL                       |       |
| quality           | tinyint(1)       | YES  |     | NULL                       |       |
| att_error_desc_id | int(10) unsigned | YES  | MUL | NULL                       |       |
+-------------------+------------------+------+-----+----------------------------+-------+

scalar	vector
att_scalar_devboolean_ro	att_array_devboolean_ro
att_scalar_devboolean_rw	att_array_devboolean_rw
att_scalar_devdouble_ro	att_array_devdouble_ro
att_scalar_devdouble_rw	att_array_devdouble_rw
att_scalar_devencoded_ro	att_array_devencoded_ro
att_scalar_devencoded_rw	att_array_devencoded_rw
att_scalar_devfloat_ro	att_array_devfloat_ro
att_scalar_devfloat_rw	att_array_devfloat_rw
att_scalar_devlong64_ro	att_array_devlong64_ro
att_scalar_devlong64_rw	att_array_devlong64_rw
att_scalar_devlong_ro	att_array_devlong_ro
att_scalar_devlong_rw	att_array_devlong_rw
att_scalar_devshort_ro	att_array_devshort_ro
att_scalar_devshort_rw	att_array_devshort_rw
att_scalar_devstate_ro	att_array_devstate_ro
att_scalar_devstate_rw	att_array_devstate_rw
att_scalar_devstring_ro	att_array_devstring_ro
att_scalar_devstring_rw	att_array_devstring_rw
att_scalar_devuchar_ro	att_array_devuchar_ro
att_scalar_devuchar_rw	att_array_devuchar_rw
att_scalar_devulong64_ro	att_array_devulong64_ro
att_scalar_devulong64_rw	att_array_devulong64_rw
att_scalar_devulong_ro	att_array_devulong_ro
att_scalar_devulong_rw	att_array_devulong_rw
att_scalar_devushort_ro	att_array_devushort_ro
att_scalar_devushort_rw	att_array_devushort_rw
att_scalar_double_ro	att_array_double_ro
att_scalar_double_rw	att_array_double_rw
att_scalar_string_ro	att_array_string_ro
att_scalar_string_rw	att_array_string_rw

Table 15: Supported data types.

To support temporary storage of historical data the att_ttl column has to be added to the att_conf table. The att_ttl defines the time-to-live in hours on a per-attribute basis. Deleting expired data is delegated to the SQL backend; the basic machanism foreseen is a SQL script run by cron.

The complete SQL source for all the tables is reported in appendix. The main points can be summarized as:

• microsecond timestamp resolution
• no per-attribute additional tables; the number of tables used is fixed and does not depend on the number of archived attributes
• specific data type support
• temporary storage support

Note

There are some special OS settings to tune for Cassandra to work as expected, in particular, it is recommended to disable the SWAP and to change the resource limits on Linux, as described in this documentation page: Recommended production settings for Linux.

Deployment best practices

To take full advantage of the high performance and scaling capability of the device server some constraints have to be taken into account. Though a single instance of the device server is capable of handling thousands of events per second, the following setup is preferrable:

• setup per-subsystem instances of the device server (homogeneous dedicated archiving)
• possibly separate attributes that have to be archived all the time, e.g. also during maintenance periods, from attributes that are run-centric

A native tool, available to be run locally, as well as a reworked web interface (E-Giga) are foreseen. A specific library with a dedicated API could be developed to address the extraction and the be used into whatever tool may be provided: a device server, a web interface, a native graphical panel, etc. The library shall be able to deal with event based archived data. The possible lack of data inside the requested time window shall be properly managed:

• returning some no-data-available error: in this case the reply contains no data and a no-data-available error is triggered. Care must be taken whenever the requirement of getting multiple data simultanously is foreseen.
• enlarging the time window itself to include some archived data: the requested time interval is enlarged in order to incorporate some archived data. A mechanism shall be provided to notify the client of the modified data set. No fake samples have to be introduced to fill the values in correspondence of the requested timestamps.
• returning the value of the last archived data anyhow: the requested time interval is kept and the last available data sample is returned. The validity of the data is guaranteed when the archiving mechanism is based on archive event on change; care must be taken when using the data in case of periodic event.

Moreover, whenever extracting multiple rows, the library shall allow to select one of the following behaviours:

• return variable length data arrays for each row
• return equal length data arrays for all rows, filling the gaps with the previous data value

A C++ native implementation, as well as a Java implementation, exposing the same API, are foreseen and are currently available. Please refer to the hdbextractor reference manual for the C++ implementation

and the HDB++ Java Extraction Library for Java HDB++ java-extraction-api

General remarks

Care must be taken to avoid introducing dependencies from libraries not already needed by the core.

Project references and source code

The HDB++ project page is available on GitHub.

The HDB++ source code for the archiving engine as well as the configuration tools, extraction libraries and GUI are available on

Sourceforge

Legacy HDB tables structure

mysql> describe adt;
+-------------+-------------------------------+------+-----+---------+----------------+
| Field       | Type                          | Null | Key | Default | Extra          |
+-------------+-------------------------------+------+-----+---------+----------------+
| ID          | smallint(5) unsigned zerofill | NO   | PRI | NULL    | auto_increment |
| time        | datetime                      | YES  |     | NULL    |                |
| full_name   | varchar(200)                  | NO   | PRI |         |                |
| device      | varchar(150)                  | NO   |     |         |                |
| domain      | varchar(35)                   | NO   |     |         |                |
| family      | varchar(35)                   | NO   |     |         |                |
| member      | varchar(35)                   | NO   |     |         |                |
| att_name    | varchar(50)                   | NO   |     |         |                |
| data_type   | tinyint(1)                    | NO   |     | 0       |                |
| data_format | tinyint(1)                    | NO   |     | 0       |                |
| writable    | tinyint(1)                    | NO   |     | 0       |                |
| max_dim_x   | smallint(6) unsigned          | NO   |     | 0       |                |
| max_dim_y   | smallint(6) unsigned          | NO   |     | 0       |                |
| levelg      | tinyint(1)                    | NO   |     | 0       |                |
| facility    | varchar(45)                   | NO   |     |         |                |
| archivable  | tinyint(1)                    | NO   |     | 0       |                |
| substitute  | smallint(9)                   | NO   |     | 0       |                |
+-------------+-------------------------------+------+-----+---------+----------------+

mysql> describe amt;
+-------------------+-------------------------------+------+-----+---------+-------+
| Field             | Type                          | Null | Key | Default | Extra |
+-------------------+-------------------------------+------+-----+---------+-------+
| ID                | smallint(5) unsigned zerofill | NO   |     | 00000   |       |
| archiver          | varchar(255)                  | NO   |     |         |       |
| start_date        | datetime                      | YES  |     | NULL    |       |
| stop_date         | datetime                      | YES  |     | NULL    |       |
| per_mod           | int(1)                        | NO   |     | 0       |       |
| per_per_mod       | int(5)                        | YES  |     | NULL    |       |
| abs_mod           | int(1)                        | NO   |     | 0       |       |
| per_abs_mod       | int(5)                        | YES  |     | NULL    |       |
| dec_del_abs_mod   | double                        | YES  |     | NULL    |       |
| gro_del_abs_mod   | double                        | YES  |     | NULL    |       |
| rel_mod           | int(1)                        | NO   |     | 0       |       |
| per_rel_mod       | int(5)                        | YES  |     | NULL    |       |
| n_percent_rel_mod | double                        | YES  |     | NULL    |       |
| p_percent_rel_mod | double                        | YES  |     | NULL    |       |
| thr_mod           | int(1)                        | NO   |     | 0       |       |
| per_thr_mod       | int(5)                        | YES  |     | NULL    |       |
| min_val_thr_mod   | double                        | YES  |     | NULL    |       |
| max_val_thr_mod   | double                        | YES  |     | NULL    |       |
| cal_mod           | int(1)                        | NO   |     | 0       |       |
| per_cal_mod       | int(5)                        | YES  |     | NULL    |       |
| val_cal_mod       | int(3)                        | YES  |     | NULL    |       |
| type_cal_mod      | int(2)                        | YES  |     | NULL    |       |
| algo_cal_mod      | varchar(20)                   | YES  |     | NULL    |       |
| dif_mod           | int(1)                        | NO   |     | 0       |       |
| per_dif_mod       | int(5)                        | YES  |     | NULL    |       |
| ext_mod           | int(1)                        | NO   |     | 0       |       |
| refresh_mode      | tinyint(4)                    | YES  |     | 0       |       |
+-------------------+-------------------------------+------+-----+---------+-------+

mysql> describe apt;
+---------------+--------------------------+------+-----+---------+-------+
| Field         | Type                     | Null | Key | Default | Extra |
+---------------+--------------------------+------+-----+---------+-------+
| ID            | int(5) unsigned zerofill | NO   | PRI | 00000   |       |
| time          | datetime                 | YES  |     | NULL    |       |
| description   | varchar(255)             | NO   |     |         |       |
| label         | varchar(64)              | NO   |     |         |       |
| unit          | varchar(64)              | NO   |     | 1       |       |
| standard_unit | varchar(64)              | NO   |     | 1       |       |
| display_unit  | varchar(64)              | NO   |     |         |       |
| format        | varchar(64)              | NO   |     |         |       |
| min_value     | varchar(64)              | NO   |     | 0       |       |
| max_value     | varchar(64)              | NO   |     | 0       |       |
| min_alarm     | varchar(64)              | NO   |     | 0       |       |
| max_alarm     | varchar(64)              | NO   |     | 0       |       |
+---------------+--------------------------+------+-----+---------+-------+

schema SQL source (MySQL)

CREATE TABLE IF NOT EXISTS att_conf
(
att_conf_id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
att_name VARCHAR(255) UNIQUE NOT NULL,
att_conf_data_type_id INT UNSIGNED NOT NULL,
att_ttl INT UNSIGNED NULL DEFAULT NULL,
facility VARCHAR(255) NOT NULL DEFAULT '',
domain VARCHAR(255) NOT NULL DEFAULT '',
family VARCHAR(255) NOT NULL DEFAULT '',
member VARCHAR(255) NOT NULL DEFAULT '',
name VARCHAR(255) NOT NULL DEFAULT '',
INDEX(att_conf_data_type_id)
) ENGINE=MyISAM COMMENT='Attribute Configuration Table';

DROP TABLE att_conf_data_type;
CREATE TABLE IF NOT EXISTS att_conf_data_type
(
att_conf_data_type_id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
data_type VARCHAR(255) NOT NULL,
tango_data_type TINYINT(1) NOT NULL
) ENGINE=MyISAM COMMENT='Attribute types description';

INSERT INTO att_conf_data_type (data_type, tango_data_type) VALUES
('scalar_devboolean_ro', 1),('scalar_devboolean_rw', 1),('array_devboolean_ro', 1),
('array_devboolean_rw', 1),('scalar_devuchar_ro', 22),('scalar_devuchar_rw', 22),
('array_devuchar_ro', 22),('array_devuchar_rw', 22),('scalar_devshort_ro', 2),
('scalar_devshort_rw', 2),('array_devshort_ro', 2),('array_devshort_rw', 2),
('scalar_devushort_ro', 6),('scalar_devushort_rw', 6),('array_devushort_ro', 6),
('array_devushort_rw', 6),('scalar_devlong_ro', 3),('scalar_devlong_rw', 3),
('array_devlong_ro', 3),('array_devlong_rw', 3),('scalar_devulong_ro', 7),
('scalar_devulong_rw', 7),('array_devulong_ro', 7),('array_devulong_rw', 7),
('scalar_devlong64_ro', 23),('scalar_devlong64_rw', 23),('array_devlong64_ro', 23),
('array_devlong64_rw', 23),('scalar_devulong64_ro', 24),('scalar_devulong64_rw', 24),
('array_devulong64_ro', 24),('array_devulong64_rw', 24),('scalar_devfloat_ro', 4),
('scalar_devfloat_rw', 4),('array_devfloat_ro', 4),('array_devfloat_rw', 4),
('scalar_devdouble_ro', 5),('scalar_devdouble_rw', 5),('array_devdouble_ro', 5),
('array_devdouble_rw', 5),('scalar_devstring_ro', 8),('scalar_devstring_rw', 8),
('array_devstring_ro', 8),('array_devstring_rw', 8),('scalar_devstate_ro', 19),
('scalar_devstate_rw', 19),('array_devstate_ro', 19),('array_devstate_rw', 19),
('scalar_devencoded_ro', 28),('scalar_devencoded_rw', 28),('array_devencoded_ro', 28),
('array_devencoded_rw', 28);

CREATE TABLE IF NOT EXISTS att_history
(
att_conf_id INT UNSIGNED NOT NULL,
time TIMESTAMP(6) DEFAULT 0,
att_history_event_id INT UNSIGNED NOT NULL,
INDEX(att_conf_id),
INDEX(att_history_event_id)
) ENGINE=MyISAM COMMENT='Attribute Configuration Events History Table';

DROP TABLE att_history_event;
CREATE TABLE IF NOT EXISTS att_history_event
(
att_history_event_id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
event VARCHAR(255) NOT NULL
) ENGINE=MyISAM COMMENT='Attribute history events description';

INSERT INTO att_history_event (event) VALUES
('add'),('remove'),('start'),('stop'),('crash'),('pause');

CREATE TABLE IF NOT EXISTS att_parameter
(
att_conf_id INT UNSIGNED NOT NULL,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
label VARCHAR(255) NOT NULL DEFAULT '',
unit VARCHAR(64) NOT NULL DEFAULT '',
standard_unit VARCHAR(64) NOT NULL DEFAULT '1',
display_unit VARCHAR(64) NOT NULL DEFAULT '',
format VARCHAR(64) NOT NULL DEFAULT '',
archive_rel_change VARCHAR(64) NOT NULL DEFAULT '',
archive_abs_change VARCHAR(64) NOT NULL DEFAULT '',
archive_period VARCHAR(64) NOT NULL DEFAULT '',
description VARCHAR(1024) NOT NULL DEFAULT '',
INDEX(recv_time),
INDEX(att_conf_id)
) ENGINE=MyISAM COMMENT='Attribute configuration parameters';

CREATE TABLE IF NOT EXISTS att_error_desc
(
att_error_desc_id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
error_desc VARCHAR(255) UNIQUE NOT NULL
) ENGINE=MyISAM COMMENT='Error Description Table';

CREATE TABLE IF NOT EXISTS att_scalar_devboolean_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r TINYINT(1) UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar Boolean ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devboolean_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r TINYINT(1) UNSIGNED DEFAULT NULL,
value_w TINYINT(1) UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar Boolean ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devboolean_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r TINYINT(1) UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array Boolean ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devboolean_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r TINYINT(1) UNSIGNED DEFAULT NULL,
dim_x_w INT UNSIGNED NOT NULL,
dim_y_w INT UNSIGNED NOT NULL DEFAULT 0,
value_w TINYINT(1) UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array Boolean ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devuchar_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r TINYINT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar UChar ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devuchar_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r TINYINT UNSIGNED DEFAULT NULL,
value_w TINYINT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar UChar ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devuchar_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r TINYINT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array UChar ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devuchar_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r TINYINT UNSIGNED DEFAULT NULL,
dim_x_w INT UNSIGNED NOT NULL,
dim_y_w INT UNSIGNED NOT NULL DEFAULT 0,
value_w TINYINT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array UChar ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devshort_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r SMALLINT DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar Short ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devshort_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r SMALLINT DEFAULT NULL,
value_w SMALLINT DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar Short ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devshort_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r SMALLINT DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array Short ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devshort_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r SMALLINT DEFAULT NULL,
dim_x_w INT UNSIGNED NOT NULL,
dim_y_w INT UNSIGNED NOT NULL DEFAULT 0,
value_w SMALLINT DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array Short ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devushort_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r SMALLINT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar UShort ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devushort_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r SMALLINT UNSIGNED DEFAULT NULL,
value_w SMALLINT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar UShort ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devushort_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r SMALLINT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array UShort ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devushort_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r SMALLINT UNSIGNED DEFAULT NULL,
dim_x_w INT UNSIGNED NOT NULL,
dim_y_w INT UNSIGNED NOT NULL DEFAULT 0,
value_w SMALLINT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array UShort ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devlong_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r INT DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar Long ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devlong_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r INT DEFAULT NULL,
value_w INT DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar Long ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devlong_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r INT DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array Long ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devlong_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r INT DEFAULT NULL,
dim_x_w INT UNSIGNED NOT NULL,
dim_y_w INT UNSIGNED NOT NULL DEFAULT 0,
value_w INT DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array Long ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devulong_ro
(
att_conf_id INT UNSIGNED NOT NULL,
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r INT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar ULong ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devulong_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r INT UNSIGNED DEFAULT NULL,
value_w INT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar ULong ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devulong_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r INT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array ULong ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devulong_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r INT UNSIGNED DEFAULT NULL,
dim_x_w INT UNSIGNED NOT NULL,
dim_y_w INT UNSIGNED NOT NULL DEFAULT 0,
value_w INT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array ULong ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devlong64_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r BIGINT DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar Long64 ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devlong64_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r BIGINT DEFAULT NULL,
value_w BIGINT DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar Long64 ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devlong64_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r BIGINT DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array Long64 ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devlong64_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r BIGINT DEFAULT NULL,
dim_x_w INT UNSIGNED NOT NULL,
dim_y_w INT UNSIGNED NOT NULL DEFAULT 0,
value_w BIGINT DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array Long64 ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devulong64_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r BIGINT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar ULong64 ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devulong64_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r BIGINT UNSIGNED DEFAULT NULL,
value_w BIGINT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar ULong64 ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devulong64_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r BIGINT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array ULong64 ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devulong64_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r BIGINT UNSIGNED DEFAULT NULL,
dim_x_w INT UNSIGNED NOT NULL,
dim_y_w INT UNSIGNED NOT NULL DEFAULT 0,
value_w BIGINT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array ULong64 ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devfloat_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r FLOAT DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar Float ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devfloat_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r FLOAT DEFAULT NULL,
value_w FLOAT DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar Float ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devfloat_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r FLOAT DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array Float ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devfloat_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r FLOAT DEFAULT NULL,
dim_x_w INT UNSIGNED NOT NULL,
dim_y_w INT UNSIGNED NOT NULL DEFAULT 0,
value_w FLOAT DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array Float ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devdouble_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r DOUBLE DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar Double ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devdouble_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r DOUBLE DEFAULT NULL,
value_w DOUBLE DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar Double ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devdouble_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r DOUBLE DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array Double ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devdouble_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r DOUBLE DEFAULT NULL,
dim_x_w INT UNSIGNED NOT NULL,
dim_y_w INT UNSIGNED NOT NULL DEFAULT 0,
value_w DOUBLE DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array Double ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devstring_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r VARCHAR(16384) DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar String ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devstring_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r VARCHAR(16384) DEFAULT NULL,
value_w VARCHAR(16384) DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar String ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devstring_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r VARCHAR(16384) DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array String ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devstring_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r VARCHAR(16384) DEFAULT NULL,
dim_x_w INT UNSIGNED NOT NULL,
dim_y_w INT UNSIGNED NOT NULL DEFAULT 0,
value_w VARCHAR(16384) DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array String ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devstate_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r TINYINT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar State ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devstate_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r TINYINT UNSIGNED DEFAULT NULL,
value_w TINYINT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar State ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devstate_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r TINYINT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array State ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devstate_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r TINYINT UNSIGNED DEFAULT NULL,
dim_x_w INT UNSIGNED NOT NULL,
dim_y_w INT UNSIGNED NOT NULL DEFAULT 0,
value_w TINYINT UNSIGNED DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array State ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devencoded_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r BLOB DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar Encoded ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devencoded_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
value_r BLOB DEFAULT NULL,
value_w BLOB DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Scalar Encoded ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devencoded_ro
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r BLOB DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array Encoded ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devencoded_rw
(
att_conf_id INT UNSIGNED NOT NULL,
data_time TIMESTAMP(6) DEFAULT 0,
recv_time TIMESTAMP(6) DEFAULT 0,
insert_time TIMESTAMP(6) DEFAULT 0,
idx INT UNSIGNED NOT NULL,
dim_x_r INT UNSIGNED NOT NULL,
dim_y_r INT UNSIGNED NOT NULL DEFAULT 0,
value_r BLOB DEFAULT NULL,
dim_x_w INT UNSIGNED NOT NULL,
dim_y_w INT UNSIGNED NOT NULL DEFAULT 0,
value_w BLOB DEFAULT NULL,
quality TINYINT(1) DEFAULT NULL,
att_error_desc_id INT UNSIGNED NULL DEFAULT NULL,
INDEX att_conf_id_data_time (att_conf_id,data_time)
) ENGINE=MyISAM COMMENT='Array Encoded ReadWrite Values Table';

schema CQL source (Cassandra)

-- Create hdb keyspace
-- Please adapt the replication factor (3 by default here) to your use case
CREATE KEYSPACE IF NOT EXISTS hdb WITH REPLICATION = { 'class' : 'NetworkTopologyStrategy', 'DC1' : 3 };

USE hdb;

CREATE TYPE IF NOT EXISTS devencoded (
 encoded_format text,
 encoded_data blob
);

CREATE TABLE IF NOT EXISTS att_conf (
cs_name text,
att_name text,
att_conf_id timeuuid,
data_type text,   -- data_types set<text> in the future?
PRIMARY KEY (cs_name, att_name)
)
WITH comment='Attribute Configuration Table'
AND caching = {'keys' : 'NONE', 'rows_per_partition': 'ALL' };

CREATE INDEX on att_conf(data_type);
CREATE INDEX on att_conf(att_conf_id);

CREATE TABLE IF NOT EXISTS att_history
(
att_conf_id timeuuid,
time timestamp,
time_us int,
event text, -- 'add','remove','start','stop' or 'crash'
PRIMARY KEY(att_conf_id, time, time_us)
)
WITH comment='Attribute Configuration Events History Table';


CREATE TABLE IF NOT EXISTS att_scalar_devboolean_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r boolean,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevBoolean ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devboolean_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r boolean,
value_w boolean,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevBoolean ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devuchar_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r int,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
) WITH comment='Scalar DevUChar ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devuchar_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r int,
value_w int,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevUChar ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devshort_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r int,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
) WITH comment='Scalar DevShort ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devshort_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r int,
value_w int,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevShort ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devushort_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r int,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevUShort ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devushort_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r int,
value_w int,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevUShort ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devlong_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r int,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevLong ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devlong_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r int,
value_w int,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevLong ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devulong_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r bigint,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevULong ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devulong_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r bigint,
value_w bigint,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevULong ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devlong64_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r bigint,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevLong64 ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devlong64_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r bigint,
value_w bigint,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevLong64 ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devulong64_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r bigint,              // issue here with very big numbers
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevULong64 ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devulong64_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r bigint, // issue here with very big numbers
value_w bigint, // issue here with very big numbers
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevLong64 ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devfloat_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r float,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevFloat ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devfloat_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r float,
value_w float,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevFloat ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devdouble_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r double,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevDouble ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devdouble_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r double,
value_w double,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevDouble ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devstring_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r text,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevString ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devstring_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r text,
value_w text,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevString ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devstate_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r int,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevState ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devstate_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r int,
value_w int,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevState ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devencoded_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r frozen<devencoded>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevEncoded ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_scalar_devencoded_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r frozen<devencoded>,
value_w frozen<devencoded>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Scalar DevEncoded ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devboolean_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<boolean>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevBoolean ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devboolean_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<boolean>,
value_w list<boolean>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevBoolean ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devuchar_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<int>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevUChar ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devuchar_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<int>,
value_w list<int>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevUChar ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devshort_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<int>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevShort ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devshort_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<int>,
value_w list<int>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevShort ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devushort_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<int>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevUShort ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devushort_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<int>,
value_w list<int>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevUShort ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devlong_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<int>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevLong ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devlong_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<int>,
value_w list<int>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevLong ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devulong_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<bigint>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevULong ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devulong_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<bigint>,
value_w list<bigint>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevULong ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devlong64_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<bigint>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevLong64 ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devlong64_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<bigint>,
value_w list<bigint>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevLong64 ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devulong64_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<bigint>,  // issue with very big numbers
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevULong64 ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devulong64_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<bigint>, // issue with very big numbers
value_w list<bigint>, // issue with very big numbers
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevULong64 ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devfloat_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<float>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevFloat ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devfloat_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<float>,
value_w list<float>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevFloat ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devdouble_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<double>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevDouble ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devdouble_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<double>,
value_w list<double>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevDouble ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devstring_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<text>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevString ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devstring_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<text>,
value_w list<text>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevString ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devstate_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<int>, // Store a special type here
                   // where we could store an int and a string?
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevState ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devstate_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<int>,// Store a special type here
value_w list<int>,// where we could store an int and a string?
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevState ReadWrite Values Table';

CREATE TABLE IF NOT EXISTS att_array_devencoded_ro (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<frozen<devencoded>>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevEncoded ReadOnly Values Table';

CREATE TABLE IF NOT EXISTS att_array_devencoded_rw (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
value_r list<frozen<devencoded>>,
value_w list<frozen<devencoded>>,
quality int,
error_desc text,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Array DevEncoded ReadWrite Values Table';

-------------------------
-- att_parameter table --
-------------------------
CREATE TABLE IF NOT EXISTS att_parameter (
att_conf_id timeuuid,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
label text,
unit text,
standard_unit text,
display_unit text,
format text,
archive_rel_change text,
archive_abs_change text,
archive_period text,
description text,
PRIMARY KEY((att_conf_id), recv_time, recv_time_us)
) WITH COMMENT='Attribute configuration parameters';

--------------------------------
-- Attributes browsing tables --
--------------------------------
CREATE TABLE IF NOT EXISTS domains (
cs_name text,
domain text,
PRIMARY KEY (cs_name, domain)
)
WITH CLUSTERING ORDER BY (domain ASC)
AND comment='Domains Table'
AND caching = {'keys' : 'NONE', 'rows_per_partition': 'ALL' };

CREATE TABLE IF NOT EXISTS families (
cs_name text,
domain text,
family text,
PRIMARY KEY ((cs_name, domain),family)
)
WITH CLUSTERING ORDER BY (family ASC)
AND comment='Families Table'
AND caching = {'keys' : 'NONE', 'rows_per_partition': 'ALL' };

CREATE TABLE IF NOT EXISTS members (
cs_name text,
domain text,
family text,
member text,
PRIMARY KEY ((cs_name, domain,family),member)
)
WITH CLUSTERING ORDER BY (member ASC)
AND comment='Members Table'
AND caching = {'keys' : 'NONE', 'rows_per_partition': 'ALL' };

CREATE TABLE IF NOT EXISTS att_names (
cs_name text,
domain text,
family text,
member text,
name text,
PRIMARY KEY ((cs_name, domain,family,member),name)
)
WITH CLUSTERING ORDER BY (name ASC)
AND comment='Attributes Names Table'
AND caching = {'keys' : 'NONE', 'rows_per_partition': 'ALL' };

CREATE TABLE IF NOT EXISTS time_stats (
att_conf_id timeuuid,
period text,
data_time timestamp,
data_time_us int,
recv_time timestamp,
recv_time_us int,
insert_time timestamp,
insert_time_us int,
PRIMARY KEY ((att_conf_id ,period),data_time,data_time_us)
)
WITH comment='Time Statistics Table';

Event Subscriber full documentation

Please, refer to the HDB++ Design and implementation .pdf file (page 42)

Configuration Manager full documentation

Please, refer to the HDB++ Design and implementation .pdf file (page 72)