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https://issues.apache.org/jira/browse/FLINK-22284?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhilong Hong updated FLINK-22284:
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Attachment: exception.png
> Null address will be logged when channel is closed in
> NettyPartitionRequestClient
> ---------------------------------------------------------------------------------
>
> Key: FLINK-22284
> URL: https://issues.apache.org/jira/browse/FLINK-22284
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Network
> Affects Versions: 1.13.0
> Reporter: Zhilong Hong
> Priority: Minor
> Fix For: 1.13.0
>
> Attachments: exception.png
>
>
> In NettyPartitionRequestClient#requestSubpartition, when a channel is closed,
> the channel will throw a LocalTransportException with the error message
> "Sending the partition request to 'null' failed.". The message is confusing
> since we wouldn't know where the remote client connected to this channel
> locates, and we couldn't track down to that TaskExecutor and find out what
> happened.
>
> Also I'm wondering that should we use TransportException instead of
> LocalTransportException here, because it's a little confusing to see a
> LocalTransportException is thrown out when a remote channel is closed.
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