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From "Guozhang Wang (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (KAFKA-4919) Document that stores must not be closed when Processors are closed
Date Thu, 23 Mar 2017 16:50:41 GMT

     [ https://issues.apache.org/jira/browse/KAFKA-4919?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Guozhang Wang resolved KAFKA-4919.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 0.10.2.1
                   0.11.0.0

> Document that stores must not be closed when Processors are closed
> ------------------------------------------------------------------
>
>                 Key: KAFKA-4919
>                 URL: https://issues.apache.org/jira/browse/KAFKA-4919
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>    Affects Versions: 0.10.2.0
>            Reporter: Elias Levy
>            Assignee: Damian Guy
>             Fix For: 0.11.0.0, 0.10.2.1
>
>
> I have a streams job, that previously worked, that consumes and writes to a large number
of topics with many partitions and that uses many threads.  I upgraded the job to 0.10.2.0.
 The job now fails after a short time running, seemingly after a rebalance.
> {quote}
> WARN  2017-03-19 18:03:20,432 [StreamThread-10][StreamThread.java:160] : Unexpected state
transition from RUNNING to NOT_RUNNING
> {quote}
> The first observation is that Streams is no longer outputting exceptions and backtraces.
 I had to add code to get this information.
> The exception:
> {quote}
> Exception: org.apache.kafka.streams.errors.StreamsException: Exception caught in process.
taskId=1_225, processor=KSTREAM-SOURCE-0000000003, topic=some_topic, partition=225, offset=266411
> org.apache.kafka.streams.errors.StreamsException: Exception caught in process. taskId=1_225,
processor=KSTREAM-SOURCE-0000000003, topic=some_topic, partition=225, offset=266411
> 	at org.apache.kafka.streams.processor.internals.StreamTask.process(StreamTask.java:216)
> 	at org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:641)
> 	at org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:368)
> Caused by: org.apache.kafka.streams.errors.InvalidStateStoreException: Store someStore-201701060400
is currently closed
> 	at org.apache.kafka.streams.state.internals.RocksDBStore.validateStoreOpen(RocksDBStore.java:205)
> 	at org.apache.kafka.streams.state.internals.RocksDBStore.put(RocksDBStore.java:221)
> 	at org.apache.kafka.streams.state.internals.RocksDBSegmentedBytesStore.put(RocksDBSegmentedBytesStore.java:74)
> 	at org.apache.kafka.streams.state.internals.ChangeLoggingSegmentedBytesStore.put(ChangeLoggingSegmentedBytesStore.java:54)
> 	at org.apache.kafka.streams.state.internals.MeteredSegmentedBytesStore.put(MeteredSegmentedBytesStore.java:101)
> 	at org.apache.kafka.streams.state.internals.RocksDBWindowStore.put(RocksDBWindowStore.java:109)
> 	... X more
> {quote}
> The error occurs for many partitions.
> This was preceded by (for this partition):
> {quote}
> INFO  2017-03-19 18:03:16,403 [StreamThread-10][ConsumerCoordinator.java:393] : Revoking
previously assigned partitions [some_topic-225] for group some_job
> INFO  2017-03-19 18:03:16,403 [StreamThread-10][StreamThread.java:254] : stream-thread
[StreamThread-10] partitions [[some_topic-225]] revoked at the beginning of consumer rebalance.
> INFO  2017-03-19 18:03:16,403 [StreamThread-10][StreamThread.java:1056] : stream-thread
[StreamThread-10] Closing a task's topology 1_225
> INFO  2017-03-19 18:03:17,887 [StreamThread-10][StreamThread.java:544] : stream-thread
[StreamThread-10] Flushing state stores of task 1_225
> INFO  2017-03-19 18:03:17,887 [StreamThread-10][StreamThread.java:534] : stream-thread
[StreamThread-10] Committing consumer offsets of task 1_225
> INFO  2017-03-19 18:03:17,891 [StreamThread-10][StreamThread.java:1012] : stream-thread
[StreamThread-10] Updating suspended tasks to contain active tasks [[1_225, 0_445, 0_30]]
> INFO  2017-03-19 18:03:17,891 [StreamThread-10][StreamThread.java:1019] : stream-thread
[StreamThread-10] Removing all active tasks [[1_225, 0_445, 0_30]]
> INFO  2017-03-19 18:03:19,925 [StreamThread-10][ConsumerCoordinator.java:252] : Setting
newly assigned partitions [some_tpoic-225] for group some_job
> INFO  2017-03-19 18:03:19,927 [StreamThread-10][StreamThread.java:228] : stream-thread
[StreamThread-10] New partitions [[some_topic-225]] assigned at the end of consumer rebalance.
> INFO  2017-03-19 18:03:19,929 [StreamThread-10][StreamTask.java:333] : task [1_225] Initializing
processor nodes of the topology
> Something happens.  What ???
> INFO  2017-03-19 18:03:20,135 [StreamThread-10][StreamThread.java:1045] : stream-thread
[StreamThread-10] Closing a task 1_225
> INFO  2017-03-19 18:03:20,355 [StreamThread-10][StreamThread.java:544] : stream-thread
[StreamThread-10] Flushing state stores of task 1_225
> INFO  2017-03-19 18:03:20,355 [StreamThread-10][StreamThread.java:523] : stream-thread
[StreamThread-10] Closing the state manager of task 1_225
> INFO  2017-03-19 18:03:20,432 [StreamThread-10][StreamThread.java:1019] : stream-thread
[StreamThread-10] Removing all active tasks [[1_225, 0_445, 0_30]]
> INFO  2017-03-19 18:03:20,432 [StreamThread-10][StreamThread.java:1034] : stream-thread
[StreamThread-10] Removing all standby tasks [[]]
> INFO  2017-03-19 18:03:20,432 [StreamThread-10][StreamThread.java:427] : stream-thread
[StreamThread-10] Stream thread shutdown complete
> {quote}



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