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https://issues.apache.org/jira/browse/FLINK-32669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17746903#comment-17746903
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chenyuzhi commented on FLINK-32669:
-----------------------------------
In our hadoop cluster, our datanode service would restarts to update patche
occasionally. When we stop datanode service, and start it start after a
while（sometime it would be longer, if datanode service crash in weekend) , the
port conflict will happen.
> Support range-port for taskmanager data port
> --------------------------------------------
>
> Key: FLINK-32669
> URL: https://issues.apache.org/jira/browse/FLINK-32669
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Network
> Reporter: chenyuzhi
> Priority: Major
>
> We can setup range-port for taskmanager rpc port to avoid occupying an
> unexpected port(such as the port of datanode service).
>
> However, we can't setup range-port for taskmanager data port(config-key:
> taskmanager.data.port). In production env, it's unreasonable to setup a
> specify port, thus we usually not setup this configuration key.
>
> The problem is without setup taskmanager data port, it's possible to conflict
> with port of other services. Thus is it necessary to support range-port for
> taskmanager data port ?
>
>
>
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