Damian Guy created KAFKA-4540:
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Summary: Suspended tasks that are not assigned to the StreamThread
need to be closed before new active and standby tasks are created
Key: KAFKA-4540
URL: https://issues.apache.org/jira/browse/KAFKA-4540
Project: Kafka
Issue Type: Bug
Components: streams
Affects Versions: 0.10.2.0
Reporter: Damian Guy
Assignee: Damian Guy
Fix For: 0.10.2.0
When partition assignment happens we first try and add the active tasks and
then add the standby tasks. The problem with this is that a new active task
might already be an existing suspended standby task. if this is the case then
when the active task initialises it will throw an exception from RocksDB:
{{Caused by: org.rocksdb.RocksDBException: IO error: lock
/tmp/kafka-streams-7071/kafka-music-charts/1_1/rocksdb/all-songs/LOCK: No locks
available}}
We need to make sure we have removed an closed any no-longer assigned Suspended
tasks before creating new tasks.
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