I looked through them but I really dont have much of an idea as to how to decipher them.
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HTTP/1.1 503 Service Unavailable Exchange 2007 Client Access
I have an Exchange 2007 Client Access Server that will sometimes throw this error on OWA...
"HTTP/1.1 503 Service Unavailable"
The mailboxes in question are on a Clustered Exchange 2003 server. Usually a reboot will take care of it but I need to know why it is happening so I can prevent it from happening again. The strange this is that there are no errors in the Event Logs on either server that point me in any direction. It is such a vague error that everything from account permissions to specific service errors are to blame.
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Answers
A running web application uses an application pool to execute the server side code. That application pool may not be releasing old sessions.
In the 'Internet Information Services Manager' located in 'Administration Tools' you can right click on entries in the 'Application Pools' tree to access the pool properties.
The first tab is 'Recycling' You should set the application pool to recycle at a specific time of day or after a suitable time period.
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by: tedbillyPosted on 2009-11-02 at 21:56:37ID: 25726356
Are you looking at the HTTPERR log files in c:\Windows\System32\LogFil