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From "Phabricator (JIRA)" <>
Subject [jira] [Commented] (HIVE-4226) Cleanup non-threadsafe code in Hive
Date Sun, 11 Aug 2013 17:02:49 GMT


Phabricator commented on HIVE-4226:

brock has commented on the revision "HIVE-4226 [jira] Cleanup non-threadsafe code in Hive".

  minor comment

  ql/src/java/org/apache/hadoop/hive/ql/exec/ Can we tighten up the
visibility? For example I believe this and the one below can be private.


To: JIRA, tarball
Cc: brock

> Cleanup non-threadsafe code in Hive
> -----------------------------------
>                 Key: HIVE-4226
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Sivaramakrishnan Narayanan
>            Assignee: Sivaramakrishnan Narayanan
>         Attachments: HIVE-4226.1.patch.txt, HIVE-4226.2.patch.txt, HIVE-4226.D11703.1.patch
> There is some code in Hive that is not threadsafe. These usually bubble up as problems
in Hive Server. This JIRA tracks fixing (hopefully, all) of these issues.
> Some context: we've implemented a multi-tenant (multiple dbs), multi-threaded hive server
at Qubole (QHS) which is running in production for a couple of months now. As part of this
effort, we've fixed a number of instances of non-threadsafe code. I'm looking to contribute
this back to the community.
> Note that there is no new functionality here - just some better hygiene. If there are
any stress tests that have revealed hive server bugs in the past, it will be great if they
can be added to the jira.
> Also, this is my first attempt at contributing to Apache, so please forgive any mistakes.

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