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From "Mala Chikka Kempanna (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IMPALA-5082) Log current count of in-use front-end connections in impala daemon logs
Date Thu, 16 Mar 2017 22:09:41 GMT

    [ https://issues.apache.org/jira/browse/IMPALA-5082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15929005#comment-15929005
] 

Mala Chikka Kempanna commented on IMPALA-5082:
----------------------------------------------

Thanks Henry, 
This will be helpful to have in logs for RCA of issues, as we do not collect this session
webUI snapshots in diag bundle right now. And I have seen that FE connection to shell hangs
indefinitely when FE connections exhaust and, this can manifest in different ways when shell
is invoked by custom applications and scheduled through oozie and other layers in between.

> Log current count of in-use front-end connections in impala daemon logs
> -----------------------------------------------------------------------
>
>                 Key: IMPALA-5082
>                 URL: https://issues.apache.org/jira/browse/IMPALA-5082
>             Project: IMPALA
>          Issue Type: Improvement
>    Affects Versions: Impala 2.9.0
>            Reporter: Mala Chikka Kempanna
>            Priority: Minor
>              Labels: supportability
>
> It would help to have log entries of in-use front-end connections in impala daemon logs
whenever a client connection is accepted, to know when the FE connections get exhausted.
> A outstanding count of in-use shell and HS2 client connections will be helpful in debugging.



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