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Monitoring the Update task performance in Domino

Technote (FAQ)


Question

How can you monitor and/or troubleshoot the performance of the Update task in Lotus Domino®?

Answer

If a server has a high update rate due to heavy application database use, a large number of mail users, or a large volume of mail, the default resource usage configuration can cause the updater queues to become large, typically indicating that views and full text indexes are not up to date.
To determine whether the updater queues are large, examine the queue length statistics that are available in Domino 7 releases, using the following command on the Domino server console:

> show stat update

The following table shows all the available statistics which can be invoked directly from the console in Domino. For example: > show stat Update.DeferredList

Statistic Definition
Update.DeferredList Number of requests for view updating or full text indexing on the deferred queue
Update.DeferredList.Duplicates Number of requests for view updating or full text indexing avoided because they were already waiting on the deferred queue
Update.DeferredList.Max Maximum number of requests waiting for view updating or full text indexing on the deferred queue
Update.DeferredList.Processed.AllViews Number of all view updates processed from the deferred queue
Update.DeferredList.Processed.Compactions Number of compactions processed from the deferred queue
Update.DeferredList.Processed.SingleViews Number of single view updates processed from the deferred queue
Update.FullTextList Number of requests on the full text index queue
Update.FullTextList.Duplicates Number of requests for full text indexing avoided because they were waiting on the full text index queue
Update.FullTextList.Max Maximum number of requests waiting for full text indexing
Update.FullTextList.Processed Number of full text indexing requests processed
Update.NAB.Updates Number of Domino Directory view updates processed
Update.PendingList Number of requests for view updating or full text indexing on the immediate queue
Update.PendingList.Max Maximum number of requests waiting for view updating or full text indexing on the immediate queue
Update.PendingList.Processed.AllViews Number of all view updates processed from the immediate queue
Update.PendingList.Processed.Compactions Number of compactions processed from the immediate queue
Update.PendingList.Processed.SingleView Number of single view updates processed from the immediate queue

NOTE: Since deferred updates are delayed 15 minutes by design, it is important to monitor the Update.Deferred* statistics over time, instead of acting on a single set of data.

Related information

Domino 7 Performance Tuning Best Practices
A simplified Chinese translation is available

Document information

More support for: Lotus End of Support Products
Lotus Domino

Software version: 7.0

Operating system(s): AIX, Linux, Solaris, Windows

Software edition: All Editions

Reference #: 1258366

Modified date: 15 May 2007


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