Damian Guy created KAFKA-6349:
---------------------------------
Summary: ConcurrentModificationException during streams state
restoration
Key: KAFKA-6349
URL: https://issues.apache.org/jira/browse/KAFKA-6349
Project: Kafka
Issue Type: Bug
Components: streams
Affects Versions: 1.1.0
Reporter: Damian Guy
Priority: Blocker
Fix For: 1.1.0
Attachments: streams-error.log
During application startup and state restoration a
{{ConcurrentModificationException}} was thrown from {{AbstractStateManager}}
{code}
[2017-12-12 10:47:09,840] ERROR [streams-saak-test-client-StreamThread-2]
stream-thread [streams-saak-test-client-StreamThread-2] Encountered the
following error during processing:
(org.apache.kafka.streams.processor.internals.StreamThread)
java.util.ConcurrentModificationException
at
java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:719)
at
java.util.LinkedHashMap$LinkedEntryIterator.next(LinkedHashMap.java:752)
at
java.util.LinkedHashMap$LinkedEntryIterator.next(LinkedHashMap.java:750)
at
org.apache.kafka.streams.processor.internals.AbstractStateManager.reinitializeStateStoresForPartitions(AbstractStateManager.java:74)
at
org.apache.kafka.streams.processor.internals.ProcessorStateManager.reinitializeStateStoresForPartitions(ProcessorStateManager.java:155)
at
org.apache.kafka.streams.processor.internals.AbstractTask.reinitializeStateStoresForPartitions(AbstractTask.java:229)
at
org.apache.kafka.streams.processor.internals.StoreChangelogReader.restore(StoreChangelogReader.java:94)
at
org.apache.kafka.streams.processor.internals.TaskManager.updateNewAndRestoringTasks(TaskManager.java:325)
at
org.apache.kafka.streams.processor.internals.StreamThread.runOnce(StreamThread.java:779)
at
org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:750)
at
org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:720)
{code}
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