Hello Andre, Could you file a JIRA for this and upload the logs around the point where it hangs? thanks — Hitesh
On May 21, 2015, at 7:55 AM, Andre Kelpe <[email protected]> wrote: > Hi, > > we have a big test suite for lingual, our SQL layer for cascading. We are > trying very hard to make it work correctly on Tez, but I am stuck: > > The setup is a huge suite of SQL based tests (6000+), which are being > executed in order in local mode. At certain moments the whole process just > stops. Nothing gets executed any longer. This is not all the time, but quite > often. Note that it is not happening at the same line of code, more at > random, which makes it quite complex to debug. > > What I am seeing, is these kind of stacktraces in the middle of the run: > > 2015-05-21 16:07:42,413 ERROR [TaskHeartbeatThread] task.TezTaskRunner > (TezTaskRunner.java:reportError(333)) - TaskReporter reported error > java.lang.InterruptedException > at > java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.reportInterruptAfterWait(AbstractQueuedSynchronizer.java:2017) > at > java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2188) > at > org.apache.tez.runtime.task.TaskReporter$HeartbeatCallable.call(TaskReporter.java:187) > at > org.apache.tez.runtime.task.TaskReporter$HeartbeatCallable.call(TaskReporter.java:118) > at java.util.concurrent.FutureTask.run(FutureTask.java:262) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > > This looks like it could be related to the hang, but the hang is not > happening immediately afterwards, but some time later. > > I have gone through quite a few JIRAs and saw that there were problems with > locks and hanging threads before, which should be fixed, but it still happens. > > I have tried 0.6.1 and 0.7.0. Both show the same behaviour. > > This gist contains a thread dump of a hanging build: > https://gist.github.com/fs111/1ee44469bf5cc31e5a52 > > Does anyone have an idea, what could be wrong? > > - André > > > -- > André Kelpe > [email protected] > http://concurrentinc.com
