The thread dump displays a list of the latest transactions running on the engine. This feature should be used only when an engine appears to be frozen or locked. When a thread dump is requested, the virtual machine pauses the current job being processed. Therefore, this option should only be used in extreme situations to detect severe problems.
To obtain a process execution engine thread dump:
In the left pane of the Process Administrator, select Engines.
On the Engines page, to the right of the engine name, click Thread Dump.