[
https://issues.apache.org/jira/browse/KAFKA-5070?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16002228#comment-16002228
]
Matthias J. Sax commented on KAFKA-5070:
----------------------------------------
Digging a little further, it seems the first severe error is:
{noformat}
2017-04-05 12:51:18.481 ERROR StreamThread:783 StreamThread-127 - stream-thread
[StreamThread-127] Failed to commit StreamTask 0_331 state:
org.apache.kafka.streams.errors.ProcessorStateException: task [0_331] Failed to
flush state store fmdbt
at
org.apache.kafka.streams.processor.internals.ProcessorStateManager.flush(ProcessorStateManager.java:325)
at
org.apache.kafka.streams.processor.internals.StreamTask$1.run(StreamTask.java:72)
at
org.apache.kafka.streams.processor.internals.StreamsMetricsImpl.measureLatencyNs(StreamsMetricsImpl.java:188)
at
org.apache.kafka.streams.processor.internals.StreamTask.commit(StreamTask.java:280)
at
org.apache.kafka.streams.processor.internals.StreamThread.commitOne(StreamThread.java:777)
at
org.apache.kafka.streams.processor.internals.StreamThread.commitAll(StreamThread.java:764)
at
org.apache.kafka.streams.processor.internals.StreamThread.maybeCommit(StreamThread.java:739)
at
org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:661)
at
org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:368)
Caused by: org.apache.kafka.streams.errors.ProcessorStateException: Error while
executing flush from store fmdbt
at
com.harman.analytics.stream.base.stores.HarmanRocksDBStore.flushInternal(HarmanRocksDBStore.java:353)
at
com.harman.analytics.stream.base.stores.HarmanRocksDBStore.flush(HarmanRocksDBStore.java:342)
at
com.harman.analytics.stream.base.stores.HarmanPersistentKVStore.flush(HarmanPersistentKVStore.java:72)
at
org.apache.kafka.streams.processor.internals.ProcessorStateManager.flush(ProcessorStateManager.java:323)
... 8 more
Caused by: org.rocksdb.RocksDBException: N
at org.rocksdb.RocksDB.flush(Native Method)
at org.rocksdb.RocksDB.flush(RocksDB.java:1642)
at
com.harman.analytics.stream.base.stores.HarmanRocksDBStore.flushInternal(HarmanRocksDBStore.java:351)
... 11 more
{noformat}
Looking at the stacktrace, it seems you are using a custom store implementation
{{HarmanRocksDBStore}} -- what does this store do differently than default
RocksDB stored shipped with Streams? Can you try using default RocksDB store to
see if the error is still there?
> org.apache.kafka.streams.errors.LockException: task [0_18] Failed to lock the
> state directory: /opt/rocksdb/pulse10/0_18
> ------------------------------------------------------------------------------------------------------------------------
>
> Key: KAFKA-5070
> URL: https://issues.apache.org/jira/browse/KAFKA-5070
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 0.10.2.0
> Environment: Linux Version
> Reporter: Dhana
> Assignee: Matthias J. Sax
> Attachments: RocksDB_LockStateDirec.7z
>
>
> Notes: we run two instance of consumer in two difference machines/nodes.
> we have 400 partitions. 200 stream threads/consumer, with 2 consumer.
> We perform HA test(on rebalance - shutdown of one of the consumer/broker), we
> see this happening
> Error:
> 2017-04-05 11:36:09.352 WARN StreamThread:1184 StreamThread-66 - Could not
> create task 0_115. Will retry.
> org.apache.kafka.streams.errors.LockException: task [0_115] Failed to lock
> the state directory: /opt/rocksdb/pulse10/0_115
> 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)
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