zhangbiao created STORM-2696:
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Summary: storm-kafka-client doesn't emit tuple when
numUncommittedOffsets - readyMessageCount > maxUncommittedOffsets
Key: STORM-2696
URL: https://issues.apache.org/jira/browse/STORM-2696
Project: Apache Storm
Issue Type: Bug
Components: storm-kafka-client
Reporter: zhangbiao
for example, when set maxUncommittedOffsets = 10, at first kafka-comsumer
fetech 500 messges from remote, with 490 messages failed and 10 messgaes acked.
at this condititon the
`waitingToEmit` is empty, and `numUncommittedOffsets - readyMessageCount = 10
>= maxUncommittedOffsets` , the client will never meet the condition to poll
again
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