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Posted to issues@flink.apache.org by "Stephan Ewen (JIRA)" <ji...@apache.org> on 2015/08/14 12:16:46 UTC
[jira] [Created] (FLINK-2519) BarrierBuffers get stuck infinitely
when some inputs end early
Stephan Ewen created FLINK-2519:
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Summary: BarrierBuffers get stuck infinitely when some inputs end early
Key: FLINK-2519
URL: https://issues.apache.org/jira/browse/FLINK-2519
Project: Flink
Issue Type: Bug
Components: Streaming
Affects Versions: 0.10
Reporter: Stephan Ewen
Assignee: Stephan Ewen
Priority: Blocker
Fix For: 0.10
When some sources exit early, the barrier buffer may start an alignment, but will never complete it, because some inputs never deliver a checkpoint barrier.
[FLINK-2515] mitigates most of the problem, by not starting checkpoints any more when some sources already finished. When a checkpoint is started while a source is finishing, the barrier buffer may still align infinitely.
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