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https://issues.apache.org/jira/browse/IMPALA-15257?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jiyoung Yoo reassigned IMPALA-15257:
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Assignee: Jiyoung Yoo
> Add option to use keepalive for internal cluster Thrift connections
> -------------------------------------------------------------------
>
> Key: IMPALA-15257
> URL: https://issues.apache.org/jira/browse/IMPALA-15257
> Project: IMPALA
> Issue Type: Task
> Components: Distributed Exec
> Affects Versions: Impala 5.0.0
> Reporter: Joe McDonnell
> Assignee: Jiyoung Yoo
> Priority: Major
>
> External connections to clients use TCP keepalive to detect a dead client,
> but internal communication over Thrift (e.g. coordinator to catalogd) does
> not. Keepalive should not be necessary for these internal connections, but
> using keepalive would make the cluster more resilient to unexpected network
> conditions. If the network connection somehow gets dropped silently, it could
> take some time before it times out. Keepalive can detect it faster or even
> keep it open if it is being closed due to idleness.
> Unlike the support added in IMPALA-13253, this would be bidirectional,
> applying to the client sockets as well as server sockets.
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