[jira] [Commented] (IMPALA-8427) Document the behavior change in IMPALA-7800

["Alex Rodoni (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IMPALA-8427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16875200#comment-16875200 ] 

Alex Rodoni commented on IMPALA-8427:
-------------------------------------

https://gerrit.cloudera.org/#/c/13762/

> 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
>
> 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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