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[jira] [Created] (FLINK-10146) numBuffersOut not updated properly

Nico Kruber created FLINK-10146:

             Summary: numBuffersOut not updated properly
                 Key: FLINK-10146
                 URL: https://issues.apache.org/jira/browse/FLINK-10146
             Project: Flink
          Issue Type: Bug
          Components: Metrics, Network
    Affects Versions: 1.5.3, 1.6.1, 1.7.0
            Reporter: Nico Kruber
            Assignee: Nico Kruber

We only enqueue a {{BufferConsumer}} once into the result (sub)partition but Netty may draw and send parts of it independently. {{numBuffersOut}} is, however, only increased when a new buffer is retrieved from the buffer pool, not when an actual buffer is sent via Netty. This metric is thus wrong.

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