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https://issues.apache.org/jira/browse/IMPALA-8427?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alex Rodoni closed IMPALA-8427.
-------------------------------
Resolution: Fixed
Fix Version/s: Impala 3.3.0
> Document the behavior change in IMPALA-7800
> -------------------------------------------
>
> Key: IMPALA-8427
> URL: https://issues.apache.org/jira/browse/IMPALA-8427
> Project: IMPALA
> Issue Type: Task
> Components: Clients
> Affects Versions: Impala 3.3.0
> Reporter: Michael Ho
> Assignee: Alex Rodoni
> Priority: Major
> Labels: future_release_doc, in_33
> Fix For: Impala 3.3.0
>
>
> IMPALA-7800 changes the default behavior of client connection timeout with
> HS2 and Beeswax Thrift servers. Quote from the commit message:
> {noformat}
> The current implementation of the FE thrift server waits
> indefinitely to open the new session, if the maximum number of
> FE service threads specified by --fe_service_threads has been
> allocated.
> This patch introduces a startup flag to control how the server
> should treat new connection requests if we have run out of the
> configured number of server threads.
> If --accepted_client_cnxn_timeout > 0, new connection requests are
> rejected by the server if we can't get a server thread within
> the specified timeout.
> We set the default timeout to be 5 minutes. The old behavior
> can be restored by setting --accepted_client_cnxn_timeout=0,
> i.e., no timeout. The timeout applies only to client facing thrift
> servers, i.e., HS2 and Beeswax servers.
> {noformat}
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