weblogic.kernel.Default' has been busy for

vittalmareddy
vittalmareddy used Ask the Experts™
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Hi
We are facing this issue in one of the production environment, weblogic is 8.1 SP4, we deployed documentum client application i.e. webtop communicating with content server 5.2.5 SP3 and oracle  9.2.08.
Not sure why this error happening these time so frequently.

<<WLS Kernel>> <> <BEA-000337> <ExecuteThread: '13' for queue: 'weblogic.kernel.Default' has been busy for "628" seconds working on the request "Http Request: /fdmis/fdmis-request", which is more than the configured time (StuckThreadMaxTime) of "600" seconds.> .


can you suggest me what could be reason, after restart it is working fine for some time then again happening issue, we have another production enviroment for different user base it is working fine.

Thanks
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Top Expert 2004

Commented:
Hi vittalmareddy,

It seems that some resources in you system get stuck for some reason and hold the weblogic.kernel.Default which is a default worker thread. If this happen, the later request to this server will be pending in queue until get timeout.

To solve this problem, you should list all resources in your system such as database, external system, active directory, etc. and when this problem happen again you check each resources whether it is in a good state or not. Is it working fine? Is the network connection to that resources open up and stable?
Is all the connections in pool get busy?

Hope this help,
Sompol

Author

Commented:
thanks for info,
it will be good if you provide a link or material which talk more on how weblogic process will use threads to process request.
 
Top Expert 2004
Commented:
Here is some topic that talking about thread model in WebLogic and I think it can make you more understand about it.

Tuning the Default Execute Threads in WebLogic Server
http://download.oracle.com/docs/cd/E13222_01/wls/docs81/perform/WLSTuning.html#wlstuning-ThreadPoolSize

Using Execute Queues to Control Thread Usage
http://download.oracle.com/docs/cd/E13222_01/wls/docs81/perform/AppTuning.html#1105201

Hope this help,
Sompol

Author

Commented:
thanks for info

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