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Exchange 2003 log files being created every 10 seconds or so. 5,120Kb in size

Posted on 2007-03-19
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Last Modified: 2010-05-18
Hi, i have the following setup

Exchange 2003 Enterprise Server SP 2
Windows 2003 Standard SP2
Veritas Backup Exec 10d
We have a approx 450 users and out database size (edb + STM) is 28Gb
Since Friday a new exchange log file has been created every ten seconds or so, we ran out of space on the Log drive this morning (which alterted us to the problem)
Since then i have made 12GB free back on that drive and the Exchange server is working without any errors and have also rebooted the exchange server.
The problem is occuring even with no users on the system.
I am not sure if it could be caused by some sort of debugging being turned off?
I also cannot see anything out of the normal in any of the event logs.

Any ideas on this?

Thanks
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Question by:laytonblackham
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by:inbarasan
ID: 18747668
Exchange log will get created only when there is new mail coming or sent out or somekind of activity on the Mailbox. You may pls check is there any abnormal mailbox growth with which you may be find the reason for Log file creation.
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by:laytonblackham
ID: 18747723
Hi,

There is no increase in mailbox sizes from what i can see, we have limits on all our mailboxes and our datastore has not increased in size by much at all (e.g a few hundred meg in a few weeks)
What other type of activity could cause this?

Thanks
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by:Sembee
ID: 18752624
The usual reason for the log growth is an email loop somewhere. Have you got message tracking turned on? Anything in the queues? Try blocking port 25 on the firewall and see if the log growth stops.

Simon.
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by:laytonblackham
ID: 18754648
Hi Sembee,

Yesterday i turned on message logging and also used a program call Sawmill to interigate the log file for a message that was stuck in the loop.
This did not show any messages that were looping, there was only 350 messages sent in the space of the 20 minutes that i had message logging turned on.
I also have Mail Marshal installed between the firewall and Exchange, which again is not getting any messages looping.

When i first saw we had this problem, i restarted the Exchange server to see if the problem came back, on the reboot the problem was back straight away.

Then yesterday afternoon i turned Circular logging on as a temporary solution, i then restarted all the Exchange services.
Late last night i turned circular logging off as i wanted to see what i have for log files this morning.....i have just checked and there are the normal number of log files, that i would expect to see.

Like you say maybe it was a message that was stuck in the loop...that has now gone?. hence it did not show up in the log files.

I will monitor the server today and let you know what happens.

Thanks
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