Engines logging off due to I/O exception
Article ID: KB0094302
Updated On:
| Products | Versions |
|---|---|
| TIBCO DataSynapse GridServer | - |
| Not Applicable | - |
Description
Resolution:
If you are running a Gridserver manager on a Windows machine and encountering engine disconnects with a log similar to this:
04/08/09 18:39:56.031 WARNING: [JakartaHttpSupport$MethodRetryHandler] java.net.SocketException: Connection reset by peer: socket write error, will retry in 3000 msecs.
04/08/09 18:39:59.031 INFO: [org.apache.commons.httpclient.HttpMethodDirector] I/O exception caught when processing request: Connection reset by peer: socket write error
04/08/09 18:39:59.031 INFO: [org.apache.commons.httpclient.HttpMethodDirector] Retrying request
04/08/09 18:40:09.437 INFO: [EngineLoginPlugin] Initiating logoff
Removing the <GS_ROOT>\win32 directory will alleviate the situation. Remove the directory from all the managers. Since the file will be in use, stop the manager before attempting to delete.
The <GS_ROOT>\win32 directory contains the file resin.dll. It is used by Resin to enable native I/O. We have seen performance degradation when native I/O is used over java I/O. Turning off Resin native socket support by deleting the directory, will cause Java I/O to be used and thus improve performance on the grid.
If you are running a Gridserver manager on a Windows machine and encountering engine disconnects with a log similar to this:
04/08/09 18:39:56.031 WARNING: [JakartaHttpSupport$MethodRetryHandler] java.net.SocketException: Connection reset by peer: socket write error, will retry in 3000 msecs.
04/08/09 18:39:59.031 INFO: [org.apache.commons.httpclient.HttpMethodDirector] I/O exception caught when processing request: Connection reset by peer: socket write error
04/08/09 18:39:59.031 INFO: [org.apache.commons.httpclient.HttpMethodDirector] Retrying request
04/08/09 18:40:09.437 INFO: [EngineLoginPlugin] Initiating logoff
Removing the <GS_ROOT>\win32 directory will alleviate the situation. Remove the directory from all the managers. Since the file will be in use, stop the manager before attempting to delete.
The <GS_ROOT>\win32 directory contains the file resin.dll. It is used by Resin to enable native I/O. We have seen performance degradation when native I/O is used over java I/O. Turning off Resin native socket support by deleting the directory, will cause Java I/O to be used and thus improve performance on the grid.
Issue/Introduction
Engines logging off due to I/O exception
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