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From "Peter Vary (JIRA)" <>
Subject [jira] [Commented] (HIVE-17401) Hive session idle timeout doesn't function properly
Date Tue, 05 Sep 2017 10:24:01 GMT


Peter Vary commented on HIVE-17401:

Hi [~xuefuz],

I have taken a look at the patch. Looks logical, and much easier to read than the previous
version. No to mention that clears up a bug :).
Quick question? Do we need {{lastIdleTime}} as a long after this change? It might be enough
to have it as a boolean, since we only use it as a flag that the operation lock is acquired,
since otherwise lastIdleTime equals lastAccessTime.

Thanks for the investigation and the patch!

> Hive session idle timeout doesn't function properly
> ---------------------------------------------------
>                 Key: HIVE-17401
>                 URL:
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 1.1.0
>            Reporter: Xuefu Zhang
>            Assignee: Xuefu Zhang
>         Attachments: HIVE-17401.1.patch, HIVE-17401.patch
> It's apparent in our production environment that HS2 leaks sessions, which at least contributed
to memory leaks in HS2. We further found that idle HS2 sessions rarely get timed out and the
number of live session keeps increasing as time goes on. Eventually, HS2 becomes irresponsive
and demands a restart.
> Investigation shows that session idle timeout doesn't work appropriately.

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