Analyze thread dumps

[CommunityUser]

Hi,

Are there any toold available to analyze the thread dump that is extracted from AppDynamics?

Sample from AppDynamics thread dump:

"ActiveMQ InactivityMonitor Worker" Id=346271 in TIMED_WAITING on lock=java.util.concurrent.SynchronousQueue$TransferStack@bcb2414
    at sun.misc.Unsafe.park(Native Method)
    at java.util.concurrent.locks.LockSupport.parkNanos(Unknown Source)
    at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(Unknown Source)
    at java.util.concurrent.SynchronousQueue$TransferStack.transfer(Unknown Source)
    at java.util.concurrent.SynchronousQueue.poll(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

    Locked synchronizers: count = 0

Thread dump - kill -3 <pid>

 "RMI TCP Connection(idle)" - Thread t@5582
   java.lang.Thread.State: TIMED_WAITING
 at sun.misc.Unsafe.park(Native Method)
 - parking to wait for <2d727c7a> (a java.util.concurrent.SynchronousQueue$TransferStack)
 at java.util.concurrent.locks.LockSupport.parkNanos(Unknown Source)
 at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(Unknown Source)
 at java.util.concurrent.SynchronousQueue$TransferStack.transfer(Unknown Source)
 at java.util.concurrent.SynchronousQueue.poll(Unknown Source)
 at java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
 at java.lang.Thread.run(Unknown Source)

   Locked ownable synchronizers:
 - None

Appreciate your help!!!

Thanks,

Payal

[CommunityUser]

We created a custom solution for this - It parses the thread sumps produced by AppD to a more general format produced by command such as kill -3 <pid>. Once done, we can use any tool with it.

Thanks,

Payal

[Kay_Koedel]

Hi, we have the same problem, can you provide this tool/script?

[Kay_Koedel]

can appdynamics provide a tool to analyse thread dumps which are created with appdynamics?