DS 5.2 High CPU

We have SUN LDAP Directory Server 5.2 SP3 installed on Linux AS-3 platform

There are total three Directory Servers of same configuration. One master and other two Replica

There are around 17500 entries in the database.

Recently we are having issues with the high CPU utilization on these boxes. Weird thing is sometimes if you restart the directory then the CPU utilization seems to disappear but another restart triggers it again

There is a major performance degradation due to high CPU

Did anyone have the same experience or the behavior

Please let me know

thx

[612 byte] By [ABharadwaja] at [2007-11-26 21:03:36]

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# 1

Since you have replication enabled, has there been a lot of entries deleted on the server ?

Replication does keep deleted entries in the directory server for some time in order to be able to do conflict resolution. Then these deleted entries are scanned for on a regular basis and definitely erased. If there has been many entries deleted (over 4000 ie the default index allIDThreshold), the internal search for these deleted entries will be unindexed and performance may suffer.

One way to check for this kind of thing would be to enable the Access Log for the Internal operations, and look for unindexed searches.

Regards,

Ludovic.

ludovicpa at 2007-7-10 2:36:13 >

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