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Info

This component was introduced in Blueriq 14.6. Before Blueriq 14.6, this component was a part of the trace-sql-store component.

For backwards compatibility, the timeline-sql-store is also enabled when you enable the trace-sql-store profile.

If no datasource is configured for the timeline, Blueriq will use the same datasource as for the trace-sql-store.  We intend to remove these backwards compatibilities in Blueriq 15the Trace SQL Store component.


Table of contents 

Table of Contents

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This Timeline SQL Store Component contains a Timeline DAO implementation that can be used by the trace engine to store timeline messages in a database.

The configuration options are found below in this documentBlueriq 14.8 introduced the possibility to consume timeline events that are pushed on a queue by the Timeline Event Publisher Component and then store them in a database in an asynchronous way. See consume timeline events.

Requirements

This component persists data in a database, that must be provided. See platform support for the supported databases.

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In order to use this component, the trace-sql-store orthe timeline-sql-store profile the

Include Page
_ProfileTimeline
_ProfileTimeline
profile must be active. More information on how to configure the application using Spring Profiles can be found here: Component configuration with Spring Profiles.

Add the artifact with groupId com.blueriq and artifactId blueriq-component-timeline-sql-store as a dependency to your Blueriq runtime POM file if you want to depend on it.

Configuration

Database

Scripts to create the required database content are provided for the following databases:

  • SQL Server
  • Oracle
  • H2 (we do not recommend using a H2 database in production environments)
Info

For customers that are upgrading an existing version of Blueriq, database upgrade scripts are provided in the Upgrade instructions when applicable.

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Please make sure the timeline-sql-store has a separate datasource. Using the same datasource for other components is known to cause errors.

Use the following steps to configure the datasource:

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  1. Using JDBC datasource: this can be configured in the  application-externaldatasources.properties file. When configuring external datasources, the externaldatasources profile should be enabled.

    Code Block
    languagepowershell
    titleExample application-externaldatasources.properties
    blueriq.datasource.timeline-sql-store.url=jdbc:sqlserver://<database_url>:<port>;databaseName=bq_timeline;instance=SQL_EXPRESS
    blueriq.datasource.timeline-sql-store.username=<username>
    blueriq.datasource.timeline-sql-store.password=<password>
    blueriq.datasource.timeline-sql-store.driverClassName=com.microsoft.sqlserver.jdbc.SQLServerDriver
    blueriq.hibernate.timeline-sql-store.hbm2ddl.auto=validate
    blueriq.hibernate.timeline-sql-store.dialect=org.hibernate.dialect.SQLServer2012Dialect
  2. Using JNDI datasource: this can be configured in the  application-jndidatasources.properties file When configuring JNDI datasources the jndidatasources profile should be enabled.

    Code Block
    languagepowershell
    titleExample application-jndidatasources.properties
    blueriq.datasource.timeline-sql-store.jndiName=java:/comp/env/jdbc/blueriqTimeline
    blueriq.hibernate.timeline-sql-store.hbm2ddl.auto=validate
    blueriq.hibernate.timeline-sql-store.dialect=org.hibernate.dialect.SQLServer2012Dialect

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The datasource name is timeline-sql-store.

Include Page
_DatasourceConfiguration
_DatasourceConfiguration

Consume timeline events

The Timeline SQL Store component can store timeline messages directly in the database, but it is also possible to decouple the storage of timeline messages using the Timeline Event Publisher Component to publish timeline events to a queue and then consume them using this component.

To be able to consume event messages, the event channel needs to be configured in the

Include Page
_PropertiesFileJava
_PropertiesFileJava
. This file can be found, or otherwise should be placed in the 
Include Page
_ConfigLocation
_ConfigLocation


Note

The Timeline SQL Store either stores timeline messages in the database, or consumes timeline events from the queue. When the configuration below is enabled, only timeline events are consumed, no timeline messages are saved to the database directly. So if you enable this configuration, be sure to also enable the Timeline Event Publisher Component, otherwise no timeline information is saved anywhere.

The queue configuration can be configured using a default queue (using blueriq.default.rabbitmq.* in the application.properties). When it is needed, it can be overruled using the configuration below.

Also the timeline events queue has a default, and can be overruled by configuration when needed.

# RabbitMQ configuration
blueriq.timeline.event.listener.amqp.rabbitmq.host=localhost
blueriq.timeline.event.listener.amqp.rabbitmq.port=5672
blueriq.timeline.event.listener.amqp.rabbitmq.virtualHost=/
blueriq.timeline.event.listener.amqp.rabbitmq.username=guest
blueriq.timeline.event.listener.amqp.rabbitmq.password=guest
blueriq.timeline.event.listener.amqp.rabbitmq.queueNames=TimelineEvents

blueriq.timeline.event.listener.amqp.concurrency.max-concurrent-consumers=1
blueriq.timeline.event.listener.amqp.concurrency.concurrent-consumers=1

# Enable consumer functionality
blueriq.timeline.event.listener.amqp.enabled=true
Note

In certain circumstances it is possible that an error happens while consuming the timeline event. Because of the workings of RabbitMQ, this will result in an endless loop where it tries to re-send the timeline event until it is correctly consumed. To prevent this, a republish mechanism is added with Blueriq 15.7. This mechanism sends timeline events to a dead-letter-queue when an error occurs. This will prevent the creation of the endless loop. For information see Configuring RabbitMQ


For more information on concurrent consumers see Configuring RabbitMQ.

Enable TLS connection

To enable a secure (TLS) AMQP connection to the queue, set the property "blueriq.timeline.event.listener.amqp.rabbitmq.ssl.enabled" to "true".
The default for AQMP port with TLS on RabbitMQ is '5671', it needs to be explicitly enabled though, see https://www.rabbitmq.com/ssl.html for more information.

Supported dialects:

  • org.hibernate.dialect.SQLServer2012Dialect (for SQL Server)
  • org.hibernate.dialect.Oracle12cDialect (for Oracle)
  • org.hibernate.dialect.H2Dialect (for H2) (we do not recommend using a H2 database in production environments)

Supported hbm2ddl.auto values:

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Performance

The performance impact of the Timeline SQL Store is minimal when used normally: to write timeline messages to the database and retrieve these messages for one given Case ID.