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https://issues.apache.org/jira/browse/FLINK-7515?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Till Rohrmann resolved FLINK-7515.
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Resolution: Fixed
Fix Version/s: 1.4.0
Fixed via f1c4eb6b65c4a7c310c325e3dd3f59e89337b3ff
> allow actual 0-length content in NettyMessage#allocateBuffer()
> --------------------------------------------------------------
>
> Key: FLINK-7515
> URL: https://issues.apache.org/jira/browse/FLINK-7515
> Project: Flink
> Issue Type: Sub-task
> Components: Network
> Affects Versions: 1.4.0
> Reporter: Nico Kruber
> Assignee: Nico Kruber
> Priority: Minor
> Fix For: 1.4.0
>
>
> Previously, length {{0}} meant "unknown content length" but there are cases
> where the actual length is 0 and we do not need a larger buffer. Let's use
> {{-1}} for tagging the special case instead.
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