Hi there,
I always got this crashes and wonder if anyone knows why. Please let me
know what information I should provide to help with trouble shooting.
I am using 0.10.2.0. My application is reading one topic and then
groupBy().aggregate() 50 times on different keys.
I use memory store, without backing to kafka.
Thanks
Tianji
2017-03-16 16:37:14.060 WARN 26139 --- [StreamThread-14]
o.a.k.s.p.internals.StreamThread : Could not create task 0_4. Will
retry.
org.apache.kafka.streams.errors.LockException: task [0_4] Failed to lock
the state directory: /tmp/kafka-streams/xxx-test28/0_4
at
org.apache.kafka.streams.processor.internals.ProcessorStateManager.<init>(ProcessorStateManager.java:102)
at
org.apache.kafka.streams.processor.internals.AbstractTask.<init>(AbstractTask.java:73)
at
org.apache.kafka.streams.processor.internals.StreamTask.<init>(StreamTask.java:108)
at
org.apache.kafka.streams.processor.internals.StreamThread.createStreamTask(StreamThread.java:834)
at
org.apache.kafka.streams.processor.internals.StreamThread$TaskCreator.createTask(StreamThread.java:1207)
at
org.apache.kafka.streams.processor.internals.StreamThread$AbstractTaskCreator.retryWithBackoff(StreamThread.java:1180)
at
org.apache.kafka.streams.processor.internals.StreamThread.addStreamTasks(StreamThread.java:937)
at
org.apache.kafka.streams.processor.internals.StreamThread.access$500(StreamThread.java:69)
at
org.apache.kafka.streams.processor.internals.StreamThread$1.onPartitionsAssigned(StreamThread.java:236)
at
org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.onJoinComplete(ConsumerCoordinator.java:255)
at
org.apache.kafka.clients.consumer.internals.AbstractCoordinator.joinGroupIfNeeded(AbstractCoordinator.java:339)
at
org.apache.kafka.clients.consumer.internals.AbstractCoordinator.ensureActiveGroup(AbstractCoordinator.java:303)
at
org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.poll(ConsumerCoordinator.java:286)
at
org.apache.kafka.clients.consumer.KafkaConsumer.pollOnce(KafkaConsumer.java:1030)
at
org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:995)
at
org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:582)
at
org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:368)
