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https://issues.apache.org/jira/browse/FLINK-15750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17323113#comment-17323113
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Flink Jira Bot commented on FLINK-15750:
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This issue is assigned but has not received an update in 7 days so it has been
labeled "stale-assigned". If you are still working on the issue, please give an
update and remove the label. If you are no longer working on the issue, please
unassign so someone else may work on it. In 7 days the issue will be
automatically unassigned.
> Execute network flushing actions in the mailbox instead of OutputFlusher
> ------------------------------------------------------------------------
>
> Key: FLINK-15750
> URL: https://issues.apache.org/jira/browse/FLINK-15750
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Network
> Affects Versions: 1.10.0
> Reporter: Piotr Nowojski
> Assignee: Piotr Nowojski
> Priority: Major
> Labels: pull-request-available, stale-assigned
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Currently almost all interactions with the network stack are happening from
> the mailbox thread, except of
> {{org.apache.flink.runtime.io.network.api.writer.ResultPartitionWriter#flushAll}},
> which happens from {{OutputFlusher}} thread.
> We could move {{ResultPartitionWriter#flushAll}} to happen in the mailbox
> thread (as a mailbox action), which would further simplify the threading
> model.
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