Disabling the synchronization buffer
In created using a standard , the synchronization buffer is enabled by default. The synchronization buffer can be disabled for schema properties in the One Identity Manager schema that map members of many-to-many schema types or key resolutions.
The synchronization buffer can become very large if thousands of unresolvable references are read in by partial synchronizations. This can affect the synchronization performance. In such cases, it can be helpful to disable the synchronization buffer.
Disable the synchronization buffer if the following is true:
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The number of objects in the synchronization buffer is very large and causes problems
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Merge mode is enabled for the members of M:N schema types during provisioning
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These memberships are never transferred to the target system by full synchronization
IMPORTANT: If the synchronization buffer is disabled, references that are missing in One Identity Manager will be deleted in the target system when synchronizing into the target system or during provisioning. Therefore, check carefully whether the synchronization buffer can be disabled.
To disable the synchronization buffer
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In the , open the synchronization project.
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Select the Mappings.
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In the navigation view, select a mapping.
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In the One Identity Manager schema view, double-click on the schema property that maps an object reference.
- Disable the Save unresolvable keys option.
- Click OK.
- Save the changes.
Related topics
Pausing handling of target system specific processes
Sometimes a target system is not available. For example, during . If are started or data is changed in One Identity Manager during this time, synchronization and provisioning tasks are queued in the . As long as the target system is down, these processes are sent into a FROZEN state and must be verified and re-enabled once the target system is available again.
One Identity Manager allows you to temporarily label the target system connection as offline. During this offline phase, synchronization is not run and provisioning tasks are put on hold. The respective pauses Job queue processing. Once the target system is available again, the system connection must be switched to online. This starts Job queue processing again and all pending processes are run in sequence.
IMPORTANT: To prevent data inconsistencies, the offline phase should be kept as short as possible.
The number of processes to handle depends on the extent of the changes in the One Identity Manager database and their effect on the target system during the offline phase. To establish data consistency between the One Identity Manager database and the target system, all pending processes must be handled before synchronization can start.
Only use offline mode, if possible, for short system downtimes such as maintenance windows.
Detailed information about this topic
Enable offline mode
If a target system connector is not able to reach the target system temporarily, you can enable offline mode for the target system. This stops target system specific from being frozen and having to be manually re-enabled later.
Whether offline mode is generally available for a target system connection is set in the base object of the respective . Once a target system is truly unavailable, the target system connection can be switched offline and online again with the Launchpad.
In offline mode, all Job servers assigned to the base object are stopped. This includes the and all Job servers involved in load balancing. If one of the Job servers also handles other tasks, these are not processed either.
Prerequisites
Offline mode can only be specified for a base object if certain prerequisites are fulfilled.
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The synchronization server is not used for any other base object as a synchronization server.
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If a server function is assigned to the base object, none of the Job servers with this server function may have any other server function (for example, update server).
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A dedicated synchronization server must be set up to exclusively process the for this base object. The same applies to all Job servers that are determined by the server function.
To allow offline mode for a base object
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In the , open the synchronization project.
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Select the Base objects category.
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Select a base object in the document view and click .
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Enable Offline mode available.
- Click OK.
- Save the changes.
To flag a target system as offline
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Start the Launchpad and log in on the One Identity Manager database.
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Select Manage > System monitoring > Flag target systems as offline.
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Click Run.
This opens the Manage offline systems dialog. The Base objects section displays the base objects of target system connections that can be switched to offline.
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Select the base object whose target system connection is not available.
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Click Switch offline.
- Confirm the security prompt with OK.
This stops all the Job servers assigned to the base object. No more synchronization or provisioning Jobs are performed. The program shows when a Job server has been switched offline and the corresponding tasks are not being processed.
Related topics
Enabling offline mode
Once the target system is available again, switch it back to online.
If offline mode should not be used for a target system in general, disable the option on the base object.
To flag a target system as online
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Start the Launchpad and log in on the One Identity Manager database.
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Select Manage > System monitoring > Flag target systems as offline.
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Click Run.
This opens the Manage offline systems dialog. The Base objects section displays the base objects of target system connections that can be switched to offline.
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Select the base object whose target system connection is available again.
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Click Switch online.
- Confirm the security prompt with OK.
The Job servers assigned to the base object then resume their work. and provisioning tasks that were not processed during the offline phase are now carried out. Depending on the extent of the changes made during the offline phase, this make take some time.
To prohibit offline mode for a base object
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In the , open the .
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Select the Base objects category.
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Select a base object in the document view and click .
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Disable Offline mode available.
- Click OK.
- Save the changes.
Related topics