> I am not sure when to grab the stack trace of the AM. In the stdout/stderr > of AM, no stack trace (or exception) is emitted.
You can login to the node and if the process is still alive, you can do a "kill -3" which will dump the threads' status to stderr. > Btw, I am curious how NM kills a container. Does it directly kill the JVM > process? NM directly kills the JVM with a SIGTERM followed by a SIGKILL. BTW, please also check the corresponding NM's logs if there is some exception/error which could mean a bug in NM code. HTH, +Vinod
