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Posted to issues@hive.apache.org by "Jason Dere (JIRA)" <ji...@apache.org> on 2017/05/19 23:42:04 UTC

[jira] [Commented] (HIVE-16724) increase session timeout for LLAP ZK token manager

    [ https://issues.apache.org/jira/browse/HIVE-16724?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16018172#comment-16018172 ] 

Jason Dere commented on HIVE-16724:
-----------------------------------

+1

> increase session timeout for LLAP ZK token manager
> --------------------------------------------------
>
>                 Key: HIVE-16724
>                 URL: https://issues.apache.org/jira/browse/HIVE-16724
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>         Attachments: HIVE-16724.patch
>
>
> ZKDTSM in Hadoop uses 10sec by default; looking at some logs from a flaky ZK instance, I see that most other clients have 40-90sec. timeouts.
> ZKDTSM uses sharedvalue from curator; that instantly fails on session expiration, without any retries. For now we are going to increase the session timeout to minimize problems due to that.



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