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Administrator Help > Administration Tool > Configuration Tab > Schedules Menu > What Should Be the Frequency of System Schedules?

What Should Be the Frequency of System Schedules?

The purpose of system schedules is to perform maintenance tasks on a regular interval in order to keep the index in its optimal state. Therefore, each task must be synchronized with its related system processes (ex.: index optimization must follow source refreshes). The suggested frequency of each task is listed in the following table:

Schedule Suggested frequency

Analyze and Index Logs

Logs should be analyzed and indexed at least once a day, because they are required on a daily basis to track system operations and errors.

Optimize Index

The index should be optimized following source refreshes and rebuilds, because these processes cause fragmentation. Therefore, it is recommended to synchronize the optimization schedule with the most frequent source refresh schedule (ex.: if sources are refreshed everyday at 12 A.M., optimize the index on the same day at 2 A.M.).

However, if between scheduled optimizations the System State section of the Overview page (Status > Overview) displays the message Index is heavily fragmented., optimize the index manually. To do so, access the Details page (Status > Details) and click Optimize Index in the Index Performance section.

Note: During optimization, the index size is doubled.

Read-Only Mode

CES must be in read-only mode during every antivirus scan to avoid conflict with internal processes (indexing, modifying index parameters, etc.). Therefore, this schedule must be synchronized with the antivirus schedule (ex.: if a scan is performed every Friday at 10 P.M., switch to read-only mode at 9:55 P.M. and allow sufficient time for the scan to complete before reverting to the read and write mode). However, if no antivirus is used on the index, disable this schedule.

The index must also be in read-only mode during backups though, in this case, it is preferable to switch modes manually (because the time required to perform a backup is difficult to predict). To switch to read-only mode manually, access the Details page (Status > Details) and, in the System State section (beside Index is in read/write mode), click [Switch to Read-Only Mode].To revert to read and write mode, click [Switch to Read/Write Mode].

Suspend Indexing

If CES is slowed down when many users query the index, indexing should be suspended in order to devote maximum CPU resources to querying. To identify the peak querying hours, during which to suspend indexing, refer to the Query History page (Reports > Query History).

However, if querying peaks occur at irregular intervals, it is possible to disable and re-enable indexing manually. To disable indexing, access the Details page (Status > Details) and click [Disable] in the System State section (beside Indexing is enabled). To re-enable indexing, click [Enable].

Update Document Rating

Document ratings should be updated at least once a week. However, if collaborative rating has a high ranking weight, it is recommended to update ratings every one or two days in order to preserve ranking precision.

Update Windows Users and Groups Cache

The information contained in the Windows user and group cache should be updated every day, so CES can take into account modifications brought to security permissions.

However, if modifications must be taken into account immediately (ex.: if a new user must access restricted documents before the next scheduled update), it is possible to update the cache manually. To update the security cache, access the Details page (Status > Details) and click Update Cache Now in the Content Security section.