D2 - Stuck threads - Thread dump

Raina

Hello!

We're often facing the issue with the threads stuck in our ver. 4.2 D2's Weblogic application server instance eventually bringing the application down over a period of time.

The threads are getting stuck due to services/ resrouces which belong to Documentum D2 having locked like DfCabinet and TopicAspect

Here's what I could find from the thread dump:

"[STUCK] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'" id=16 idx=0x48 tid=7116 prio=1 alive, blocked, native_blocked, daemon
          
                -- Blocked trying to get lock: com/documentum/fc/client/DfCabinet@0x0000000009539A88[lazy unlocked]

            "[STUCK] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)'" id=22 idx=0x5c tid=7984 prio=1 alive, blocked, native_blocked, daemon
          
                -- Blocked trying to get lock: com/documentum/services/collaboration/impl/TopicAspect@0x000000000A253E30[lazy unlocked]

Could this be due to the Lazy lock option which is enabled by default for JRockit JVM ? as mentioned in this article:

Understanding Threads and Locks

Please let me know if someone has faced such issue and any resolution would be of great help.

Thank you!

Raina

Any inputs would be really helpful.