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https://issues.apache.org/jira/browse/FLINK-10147?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Metzger reassigned FLINK-10147:
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Assignee: (was: boshu Zheng)
> numBytesOut metric lagging behind
> ---------------------------------
>
> Key: FLINK-10147
> URL: https://issues.apache.org/jira/browse/FLINK-10147
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Metrics, Runtime / Network
> Affects Versions: 1.5.0, 1.5.1, 1.5.2, 1.6.0, 1.7.0
> Reporter: Nico Kruber
> Priority: Minor
>
> Since the low-latency changes in the network stack, {{numBytesOut}} is only
> updated whenever a new buffer is retrieved from the buffer pool. We do,
> however, keep the old buffer enqueued until all its bytes have been written.
> In low load scenarios this may thus seem like we do not send any bytes.
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