The system runs database maintenance jobs automatically on a daily basis and moves records every 15 minutes from the small temporary tables to the final tables. The maintenance jobs help to optimize large-scale deployments by running bulk operations during off-hours and periodically reorganizing indexes on the database tables. The database maintenance runs as standard SQL Server jobs on SQL Server Standard and Enterprise Editions and is executed by the Verba Web Application service in the case of SQL Server Express Edition (where jobs are not supported). The SQL Server jobs are created during install time by the installer running specific SQL scripts. To run these scripts, the installer requires specific permissions on the SQL Server. For more information see SQL Server requirements.

The built-in maintenance jobs provide the following features:

Actions	Description	Schedule
Bulk delete records	The action deletes records in a bulk operation where the retention expired or a matching deletion policy is configured. The data management policy which is executing the deletion only marks the records in the database for deletion and the bulk delete job deletes the records ultimately from the database tables.	Daily
Move data from temporary tables to the final tables	The action moves data from temporary tables which store data for 15 minutes only to the final tables where the data resides for the long term. The move job runs on the following tables: section1 -> section2 section_meta1 -> section_meta2 marker1 -> marker2 section_participant1 -> section_participant2 section_cdr_media1 -> section_cdr_media2 section_file1 -> section_file2 section_centera1 -> section_centera2 storage_executed_action1 -> storage_executed_action2 call_export_log1 -> call_export_log2 section_message1 -> section_message2	Every 15 minutes
Rebuild indexes	The action rebuilds indexes where the fragmentation is greater than 30% on all tables	Daily
Reorganize indexes	The action reorganizes indexes where the fragmentation is greater than 5% on all tables	Daily
Extend partitions	The action creates new partitions for the next 5 months and merges partitions with a small amount of data for the following tables: section2 section_archived section_message2 section_meta2	Daily

Reviewing and monitoring job execution

The system automatically sends notification alerts after job completion and error alerts when a job fails.

To review and monitor the execution, the following database tables can be checked:

maintenance_log: each maintenance job run has a record in this table
maintenance_log_section: contains a record for each action for the related job
maintenance_log_section_detail: detailed information for each executed action for the related job

The following SQL query retrieves the most recent 1000 log entries from the tables:

SELECT TOP 1000 *
FROM maintenance_log l
INNER JOIN maintenance_log_section s ON s.maintenance_log_id = l.id
INNER JOIN maintenance_log_section_detail d ON d.maintenance_log_section_id = s.id
ORDER BY l.id DESC, s.id DESC, d.id DESC;

Always On Availability Groups

The Verba Maintenance SQL Agent Jobs are automatically created in the Primary Replica during the installation. The jobs must be created on the Secondary Replicas manually with the provided update-programs-maintenance-job.sql script. This script must be executed in the Secondary Replicas after an upgrade of the system too because new jobs may be added to the product.

The Jobs will be started on the Secondary Replicas too based on the schedule but will do nothing because the job checks the state of the replica and will immediately stop the execution on the Secondary Replicas. This way the jobs will be running on the new Primary Replica after a failover.

Changing the job schedule

The maintenance job runs at 22:00 by default (SQL Server local time in case of SQL Server jobs or Verba Media Repository / Application Server local time in case of SQL Server Express). The weekly actions run on Saturday by default.

To change the schedule follow the steps below:

Changing the schedule for SQL Server jobs

Step 1 - Start SQL Server Management Studio and connect to the Verba database

Step 2 - Select SQL Server Agent from the dropdown and expand Jobs

Step 3 - Right-click on the Verba Maintenance job (database_name) and select Properties

Step 4 - Select Schedules on the top left and click on Edit

Step 5 - Change the Daily frequency / Occurs once at parameter to the desired setting

Step 6 - Click Ok and Ok. The SQL Server saves the changes and the job will run based on the new schedule.

Changing the schedule for jobs executed by the Web Application

Step 1 - Login to the Verba Web Application with system administrator privileges

Step 2 - Navigate to System / Server and select the Verba Media Repository / Application Server or navigate to System / Configuration Profiles and select the profile for the Media Repository servers.

Step 3 - Click on the Change Configuration Settings tab and expand to Web Application / Miscellaneous

Step 4 - Under Daily Job Start At (Server Time Zone) select the appropriate value from the dropdown list.

Step 5 - Save the changes by clicking on the icon.

Step 6 - A notification banner will appear on the top. Click on the click here link, so you will be redirected to the Configuration Tasks tab. Click on the Execute button in order to execute the changes.

Advanced Configuration

Configuration ID	Since	Default	Unit	Description
maintenance.transaction_log_size_limit.percent	9.8.6	75	%	If the Transaction Log size exceeds the configured percentage of its maximum size, then the Maintenance Job will stop.
maintenance.transaction_log_size_limit.mb	9.8.6	0	MB	If greater than zero, then overrides the "maintenance.transaction_log_size_limit.percent" configuration with a fixed size.
maintenance.index_rebuild.min_fragmentation		5	%	Only those indexes will be rebuilt that are more fragmented than the specified value.
maintenance.index_rebuild.min_page_count		2000		Only those indexes will be rebuilt that contain at least the specified number of pages.
maintenance.index_rebuild.rebuild_min_fragmentation		30	%	The indexes that are less fragmented than the specified value will be reorganized instead of rebuilt.
maintenance.index_rebuild.wait_after_every_x_seconds		3600	seconds	The job will be paused every X seconds to ensure that the transaction log backup works seamlessly.
maintenance.index_rebuild.wait_seconds		900	seconds	Defines how long the job will be paused after every "maintenance.index_rebuild.wait_after_every_x_seconds".

The configuration can be changed with the pr_set_system_setting stored procedure. For example:

DECLARE
@name VARCHAR(512) = 'maintenance.transaction_log_size_limit.percent' /* TODO replace to the ID of the configuration */
, @value VARCHAR(256) = '50' /* TODO replace to the desired value */
;

EXEC pr_set_system_setting
@p_name = @name
, @p_value = @value
, @p_value_number = 1
, @p_visible = 1
, @p_value_read_only = 0
GO

Database maintenance