Eno before I do so I just want to be sure this would not be a duplicate. I just found the following issues:
* https://issues.apache.org/jira/browse/KAFKA-5167. Marked as being fixed on 0.11.0.0/0.10.2.2 (both not released afaik) * https://issues.apache.org/jira/browse/KAFKA-5070. Currently in progress On Wed, Jun 7, 2017 at 2:24 PM Eno Thereska <eno.there...@gmail.com> wrote: > Hi there, > > This might be a bug, would you mind opening a JIRA (copy-pasting below is > sufficient). > > Thanks > Eno > > On 7 Jun 2017, at 21:38, João Peixoto <joao.harti...@gmail.com> wrote: > > > > I'm using Kafka Streams 0.10.2.1 and I still see this error > > > > 2017-06-07 20:28:37.211 WARN 73 --- [ StreamThread-1] > > o.a.k.s.p.internals.StreamThread : Could not create task 0_31. > Will > > retry. > > > > org.apache.kafka.streams.errors.LockException: task [0_31] Failed to lock > > the state directory for task 0_31 > > at > > > org.apache.kafka.streams.processor.internals.ProcessorStateManager.<init>(ProcessorStateManager.java:100) > > ~[kafka-streams-0.10.2.1.jar!/:na] > > at > > > org.apache.kafka.streams.processor.internals.AbstractTask.<init>(AbstractTask.java:73) > > ~[kafka-streams-0.10.2.1.jar!/:na] > > at > > > org.apache.kafka.streams.processor.internals.StreamTask.<init>(StreamTask.java:108) > > ~[kafka-streams-0.10.2.1.jar!/:na] > > at > > > org.apache.kafka.streams.processor.internals.StreamThread.createStreamTask(StreamThread.java:864) > > [kafka-streams-0.10.2.1.jar!/:na] > > at > > > org.apache.kafka.streams.processor.internals.StreamThread$TaskCreator.createTask(StreamThread.java:1237) > > ~[kafka-streams-0.10.2.1.jar!/:na] > > at > > > org.apache.kafka.streams.processor.internals.StreamThread$AbstractTaskCreator.retryWithBackoff(StreamThread.java:1210) > > ~[kafka-streams-0.10.2.1.jar!/:na] > > at > > > org.apache.kafka.streams.processor.internals.StreamThread.addStreamTasks(StreamThread.java:967) > > [kafka-streams-0.10.2.1.jar!/:na] > > at > > > org.apache.kafka.streams.processor.internals.StreamThread.access$600(StreamThread.java:69) > > [kafka-streams-0.10.2.1.jar!/:na] > > at > > > org.apache.kafka.streams.processor.internals.StreamThread$1.onPartitionsAssigned(StreamThread.java:234) > > [kafka-streams-0.10.2.1.jar!/:na] > > at > > > org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.onJoinComplete(ConsumerCoordinator.java:259) > > [kafka-clients-0.10.2.1.jar!/:na] > > at > > > org.apache.kafka.clients.consumer.internals.AbstractCoordinator.joinGroupIfNeeded(AbstractCoordinator.java:352) > > [kafka-clients-0.10.2.1.jar!/:na] > > at > > > org.apache.kafka.clients.consumer.internals.AbstractCoordinator.ensureActiveGroup(AbstractCoordinator.java:303) > > [kafka-clients-0.10.2.1.jar!/:na] > > at > > > org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.poll(ConsumerCoordinator.java:290) > > [kafka-clients-0.10.2.1.jar!/:na] > > at > > > org.apache.kafka.clients.consumer.KafkaConsumer.pollOnce(KafkaConsumer.java:1029) > > [kafka-clients-0.10.2.1.jar!/:na] > > at > > > org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:995) > > [kafka-clients-0.10.2.1.jar!/:na] > > at > > > org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:592) > > [kafka-streams-0.10.2.1.jar!/:na] > > at > > > org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:361) > > [kafka-streams-0.10.2.1.jar!/:na] > > > > > > It has been printing it for hours now, so it does not recover at all. > > The most worrying thing is that this stream definition does not even use > > state stores, it literally looks like this: > > > > KStreamBuilder builder = new KStreamBuilder(); > > KStream<byte[], Message> kStream = > > builder.stream(appOptions.getInput().getTopic()); > > kStream.process(() -> processor); > > new KafkaStreams(builder, streamsConfiguration); > > > > The "processor" does its thing and calls "context().commit()" when done. > > That's it. Looking at the actual machine running the instance, the > folders > > under /tmp/kafka-streams/<stream name>/ only have a .lock file. > > > > This seems to have been bootstrapped by the exception: > > > > org.apache.kafka.clients.consumer.CommitFailedException: Commit cannot be > > completed since the group has already rebalanced and assigned the > > partitions to another member. This means that the time between subsequent > > calls to poll() was longer than the configured max.poll.interval.ms, > which > > typically implies that the poll loop is spending too much time message > > processing. You can address this either by increasing the session timeout > > or by reducing the maximum size of batches returned in poll() with > > max.poll.records. > > > > We are addressing the latter by reducing "max.poll.records" and > increasing " > > commit.interval.ms", nonetheless, shouldn't Kafka Streams not worry > about > > state dirs if there are no state stores? Since it doesn't seem to do so > > automatically, can I configured it somehow to achieve this end? > > > > Additionally, what could lead to it not being able to recover? > > > > On Tue, May 16, 2017 at 3:17 PM Matthias J. Sax <matth...@confluent.io> > > wrote: > > > >> Great! :) > >> > >> On 5/16/17 2:31 AM, Sameer Kumar wrote: > >>> I see now that my Kafka cluster is very stable, and these errors dont > >> come > >>> now. > >>> > >>> -Sameer. > >>> > >>> On Fri, May 5, 2017 at 7:53 AM, Sameer Kumar <sam.kum.w...@gmail.com> > >> wrote: > >>> > >>>> Yes, I have upgraded my cluster and client both to version 10.2.1 and > >>>> currently monitoring the situation. > >>>> Will report back in case I find any errors. Thanks for the help > though. > >>>> > >>>> -Sameer. > >>>> > >>>> On Fri, May 5, 2017 at 3:37 AM, Matthias J. Sax < > matth...@confluent.io> > >>>> wrote: > >>>> > >>>>> Did you see Eno's reply? > >>>>> > >>>>> Please try out Streams 0.10.2.1 -- this should be fixed there. If > not, > >>>>> please report back. > >>>>> > >>>>> I would also recommend to subscribe to the list. It's self-service > >>>>> http://kafka.apache.org/contact > >>>>> > >>>>> > >>>>> -Matthias > >>>>> > >>>>> On 5/3/17 10:49 PM, Sameer Kumar wrote: > >>>>>> My brokers are on version 10.1.0 and my clients are on version > 10.2.0. > >>>>>> Also, do a reply to all, I am currently not subscribed to the list. > >>>>>> > >>>>>> -Sameer. > >>>>>> > >>>>>> On Wed, May 3, 2017 at 6:34 PM, Sameer Kumar < > sam.kum.w...@gmail.com> > >>>>> wrote: > >>>>>> > >>>>>>> Hi, > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>> I ran two nodes in my streams compute cluster, they were running > fine > >>>>> for > >>>>>>> few hours before outputting with failure to rebalance errors. > >>>>>>> > >>>>>>> > >>>>>>> I couldnt understand why this happened but I saw one strange > >>>>> behaviour... > >>>>>>> > >>>>>>> at 16:53 on node1, I saw "Failed to lock the state directory" > error, > >>>>> this > >>>>>>> might have caused the partitions to relocate and hence the error. > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>> I am attaching detailed logs for both the nodes, please see if you > >> can > >>>>>>> help. > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>> Some of the logs for quick reference are these. > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>> 2017-05-03 16:53:53 ERROR Kafka10Base:44 - Exception caught in > thread > >>>>>>> StreamThread-2 > >>>>>>> > >>>>>>> org.apache.kafka.streams.errors.StreamsException: stream-thread > >>>>>>> [StreamThread-2] Failed to rebalance > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> ssor.internals.StreamThread.runLoop(StreamThread.java:612) > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> ssor.internals.StreamThread.run(StreamThread.java:368) > >>>>>>> > >>>>>>> Caused by: org.apache.kafka.streams.errors.StreamsException: > >>>>>>> stream-thread [StreamThread-2] failed to suspend stream tasks > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> ssor.internals.StreamThread.suspendTasksAndState(StreamThrea > >>>>> d.java:488) > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> ssor.internals.StreamThread.access$1200(StreamThread.java:69) > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> ssor.internals.StreamThread$1.onPartitionsRevoked(StreamThre > >>>>> ad.java:259) > >>>>>>> > >>>>>>> at org.apache.kafka.clients.consu > >>>>>>> mer.internals.ConsumerCoordinator.onJoinPrepare(ConsumerCoor > >>>>>>> dinator.java:396) > >>>>>>> > >>>>>>> at org.apache.kafka.clients.consu > >>>>>>> mer.internals.AbstractCoordinator.joinGroupIfNeeded(Abstract > >>>>>>> Coordinator.java:329) > >>>>>>> > >>>>>>> at org.apache.kafka.clients.consu > >>>>>>> mer.internals.AbstractCoordinator.ensureActiveGroup(Abstract > >>>>>>> Coordinator.java:303) > >>>>>>> > >>>>>>> at org.apache.kafka.clients.consu > >>>>>>> > mer.internals.ConsumerCoordinator.poll(ConsumerCoordinator.java:286) > >>>>>>> > >>>>>>> at org.apache.kafka.clients.consu > >>>>>>> mer.KafkaConsumer.pollOnce(KafkaConsumer.java:1030) > >>>>>>> > >>>>>>> at org.apache.kafka.clients.consu > >>>>>>> mer.KafkaConsumer.poll(KafkaConsumer.java:995) > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> ssor.internals.StreamThread.runLoop(StreamThread.java:582) > >>>>>>> > >>>>>>> ... 1 more > >>>>>>> > >>>>>>> Caused by: org.apache.kafka.clients.consumer.CommitFailedException: > >>>>>>> Commit cannot be completed since the group has already rebalanced > and > >>>>>>> assigned the partitions to another member. This means that the time > >>>>> between > >>>>>>> subsequent calls to poll() was longer than the configured > >>>>>>> max.poll.interval.ms, which typically implies that the poll loop > is > >>>>>>> spending too much time message processing. You can address this > >> either > >>>>> by > >>>>>>> increasing the session timeout or by reducing the maximum size of > >>>>> batches > >>>>>>> returned in poll() with max.poll.records. > >>>>>>> > >>>>>>> at org.apache.kafka.clients.consu > >>>>>>> mer.internals.ConsumerCoordinator.sendOffsetCommitRequest(Co > >>>>>>> nsumerCoordinator.java:698) > >>>>>>> > >>>>>>> at org.apache.kafka.clients.consu > >>>>>>> mer.internals.ConsumerCoordinator.commitOffsetsSync(Consumer > >>>>>>> Coordinator.java:577) > >>>>>>> > >>>>>>> at org.apache.kafka.clients.consu > >>>>>>> mer.KafkaConsumer.commitSync(KafkaConsumer.java:1125) > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> ssor.internals.StreamTask.commitOffsets(StreamTask.java:296) > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> ssor.internals.StreamThread$3.apply(StreamThread.java:535) > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> > ssor.internals.StreamThread.performOnAllTasks(StreamThread.java:503) > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> ssor.internals.StreamThread.commitOffsets(StreamThread.java:531) > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> ssor.internals.StreamThread.suspendTasksAndState(StreamThrea > >>>>> d.java:480) > >>>>>>> > >>>>>>> ... 10 more > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>> 2017-05-03 16:53:57 WARN StreamThread:1184 - Could not create task > >>>>> 1_38. > >>>>>>> Will retry. > >>>>>>> > >>>>>>> org.apache.kafka.streams.errors.LockException: task [1_38] Failed > to > >>>>> lock > >>>>>>> the state directory: /data/streampoc/LIC2-5/1_38 > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> ssor.internals.ProcessorStateManager.<init>(ProcessorStateMa > >>>>>>> nager.java:102) > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> ssor.internals.AbstractTask.<init>(AbstractTask.java:73) > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> ssor.internals.StreamTask.<init>(StreamTask.java:108) > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> ssor.internals.StreamThread.createStreamTask(StreamThread.java:834) > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> ssor.internals.StreamThread$TaskCreator.createTask(StreamThr > >>>>> ead.java:1207) > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> ssor.internals.StreamThread$AbstractTaskCreator.retryWithBac > >>>>>>> koff(StreamThread.java:1180) > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> ssor.internals.StreamThread.addStreamTasks(StreamThread.java:937) > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> ssor.internals.StreamThread.access$500(StreamThread.java:69) > >>>>>>> > >>>>>>> at org.apache.kafka.streams.proce > >>>>>>> ssor.internals.StreamThread$1.onPartitionsAssigned(StreamThr > >>>>> ead.java:236) > >>>>>>> > >>>>>>> > >>>>>>> Regards, > >>>>>>> > >>>>>>> -Sameer. > >>>>>>> > >>>>>> > >>>>> > >>>>> > >>>> > >>> > >> > >> > >
