Event 1025, Source MSExchagneIS Mailbox Store, Error 1162

I've brought up a number of new clients on Exchange 2007 recently, and a common issue is this event log warning:

Event Type:      Warning
Event Source:    MSExchangeIS Mailbox Store
Event Category:  General 
Event ID:        1025
Date:            7/18/2008
Time:            10:26:40 AM
User:            N/A
Computer:        EXCHANGE
An error occurred on database "StorageGroup\Database".
 Function name or description of problem: Restrict/SetSearchCriteria
Error: 1162 Warning: fail to apply search optimization to folder (FID 4-3DBEABE)   Retrying without optimization. 

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

If you spend time on Internet search engines, you'll find lots of bad advice about running an Isinteg to eliminate these, or running an offline defragmentation to get rid of these. At best, those are temporary solutions. I finally had seen so many of these, I asked Microsoft about them. Here is the answer from the horse's mouth:

You have an application that is trying to perform a search using restrictions against a users search folders and this could be a time based query, etc.We will do two types of searches (1 fast optimized search if the indexes are there, 1 slow find) which takes a long time and will chew up processor time for store if your user has a ton of items in their folders (more than 5,000 items per folder). This is just telling you that we are performing an un-optimized search against that table in the store. They cannot be suppressed.

In other words, ignore them. You may have users that have far too many items in their primary folders (Calendar, Tasks, Inbox, Sent Items, Deleted Items) and you can get rid of these messages if you get them to clean those up. But it may not be worth your time and energy.

Until next time...

As always, if there are items you would like me to talk about, please drop me a line and let me know!

Published Sunday, July 20, 2008 9:58 AM by michael
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Thursday, July 24, 2008 2:05 PM by subject: exchange

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