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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-7553) avoid the scheduling maintenance window for every jar change
Date Thu, 18 Sep 2014 07:04:34 GMT

    [ https://issues.apache.org/jira/browse/HIVE-7553?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14138619#comment-14138619
] 

Lefty Leverenz commented on HIVE-7553:
--------------------------------------

Thanks for the release note, [~Ferd].

The *reload* command can be documented in Beeline Command Options, and *hive.reloadable.aux.jars.path*
goes in the two wikidocs mentioned in a previous comment:

* [HiveServer2 Clients -- Beeline Command Options | https://cwiki.apache.org/confluence/display/Hive/HiveServer2+Clients#HiveServer2Clients-BeelineCommandOptions]
* [_previous doc comment_ | https://issues.apache.org/jira/browse/HIVE-7553?focusedCommentId=14124772&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14124772]

One question:  What does this sentence mean?  "In order to making the HiveServer2 as a service,
it should not be restarted when the auxiliary jars changed."  (Maybe something like "In order
to make HiveServer2 function as a service, it should not need to be restarted ..."?)

> avoid the scheduling maintenance window for every jar change
> ------------------------------------------------------------
>
>                 Key: HIVE-7553
>                 URL: https://issues.apache.org/jira/browse/HIVE-7553
>             Project: Hive
>          Issue Type: Bug
>          Components: HiveServer2
>            Reporter: Ferdinand Xu
>            Assignee: Ferdinand Xu
>              Labels: TODOC14
>             Fix For: 0.14.0
>
>         Attachments: HIVE-7553.1.patch, HIVE-7553.2.patch, HIVE-7553.3.patch, HIVE-7553.4.patch,
HIVE-7553.patch, HIVE-7553.pdf, SessionStateTest.jar.v1, SessionStateTest.jar.v2
>
>
> When user needs to refresh existing or add a new jar to HS2, it needs to restart it.
As HS2 is service exposed to clients, this requires scheduling maintenance window for every
jar change. It would be great if we could avoid that.



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