Performance Degradation

[Senthil Nathan M]

Hi Friends,

Its been a while since I posted here. I have come back today with a problem and in need of your help.

One of our instance is giving serious performance problems. The application response degrades so badly, that it requires a complete bounce of the middle tier and database to make the system function again. I noticed that weblogic server threads gets stuck often. While starting the weblogic service, I found the following message in the weblogic.log file.
---------------------------------------------------------------------------------------------------
####<Oct 16, 2008 12:40:25 PM BST> <Warning> <Socket> <wrohstsco10> <gc3-wrohstsco10> <ListenThread.Default> <<WLS Kernel>> <> <BEA-000402> <There are: 9 active sockets, but the maximum number of socket reader threads allowed by the configuration is: 8. You may want to alter your configuration.>
---------------------------------------------------------------------------------------------------

But, NativeIOEnabled is set to true in the config.xml. We are stuck and have no clue about how to proceed. Any help will be greatly appreciated.

Tech Stack:OTM 5.5CU3 Weblogic 8.1MP4

Regards
Senthil Nathan M

[chrisplough]

Re: Performance Degradation

Hello,

You will find the solution to this error here:

http://www.otmfaq.com/forums/f27/solved-weblogic-error-lt-bea-000402-gt-maximum-number-socket-reader-thread-218/

However - this will not resolve your current performance issues. It sounds like you may have GC (garbage collection), thread blocking, agent contention and possible DB query issues - if you're having to restart all of OTM including the DB in order to resolve.

--Chris