Map service periodically crashes (ArcGIS for Server 10.1 SP1)

Discussion created by dahae on Jul 23, 2013
Latest reply on Jul 26, 2013 by dahae
We are experiencing periodic crashing of map services on request - it occurs randomly about 5 -10 times during a day... We have map services connecting to both Oracle and Postgresql databases thru SDE direct connections, but it seems not a matter of which database it is accessing to.
We are using clustered GIS Servers under AGS Web adaptor in a virtual environment, and refresh(Stop/start) AGS Services every morning on the servers.
When it crashes, the used memory on the server is less than 70%... (Max 8GB is allocated to each GIS machine)

I've attached the dump files from error report.
Any hep would be appreciated.
Thanks in advance,