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Posted to dev@flink.apache.org by "Nico Kruber (JIRA)" <ji...@apache.org> on 2018/03/26 08:58:00 UTC

[jira] [Created] (FLINK-9076) Make credit-based floating buffers optional

Nico Kruber created FLINK-9076:
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             Summary: Make credit-based floating buffers optional
                 Key: FLINK-9076
                 URL: https://issues.apache.org/jira/browse/FLINK-9076
             Project: Flink
          Issue Type: Sub-task
          Components: Network
    Affects Versions: 1.5.0, 1.6.0
            Reporter: Nico Kruber
            Assignee: Nico Kruber
             Fix For: 1.5.0


Currently, floating buffers (per gate) are always required in case credit-based flow control is enabled. This, however, increases our minimum number of required network buffers.

Instead, without changing too much, we could already work with a minimum of one floating buffer and set the max to the configured value. This way, if there are not enough buffers, all {{LocalBufferPool}}s will at least share the available ones.



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