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https://issues.apache.org/jira/browse/HIVE-13158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15300347#comment-15300347
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Jesus Camacho Rodriguez commented on HIVE-13158:
------------------------------------------------
Removing 2.1.0 target. Please feel free to commit to branch-2.1 anyway and fix
for 2.1.0 if this happens before the release.
> HiveServer should pick AMs which are already ready from the pool
> ----------------------------------------------------------------
>
> Key: HIVE-13158
> URL: https://issues.apache.org/jira/browse/HIVE-13158
> Project: Hive
> Issue Type: Bug
> Reporter: Siddharth Seth
>
> Scenario. Start HiveServer2 with 3 sessions. At startup there's capacity for
> this.
> All 3 sessions time out.
> There's capacity for one session only.
> The first query submitted will start a session and use it.
> The second query submitted (after the first one is submitted) ends up trying
> to launch a new session as well - instead of using the existing free session.
> Since there's no capacity, this ends up blocking.
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