DSXchange

Posted: **Wed Mar 12, 2008 6:58 pm**

Please help!
I have a server job using LinkCollector, Cpartitioner & Container and it has the error
ds_ipcput() - Error in mutex_unlock() - Not owner

NB: the job properties Perfoemance have been set
Enable row buffer -> Inter processed -> buffer size 1024K & timeout 600s

Thanks
Jessica

Posted: **Wed Mar 12, 2008 7:54 pm**

Welcome aboard.

Your long timeout probably means that you are hitting one of the mutex wait limits. Search the forum for SPINTRIES and SPINSLEEP, which allow you to tune the mutex lock mechanism.

Search the internet for more information about how "semaphores" are implemented in some operating systems using mutually exclusive (mutex) locks where the process executes a "busy wait" rather than a "sleep wait".

Posted: **Wed Mar 12, 2008 8:35 pm**

Just curious - what operating system? HP-UX? They seem to have the lion's share of mutex issues, hence the question.