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From "Wei Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-16399) create an index for tc_txnid in TXN_COMPONENTS
Date Mon, 01 May 2017 22:53:04 GMT

    [ https://issues.apache.org/jira/browse/HIVE-16399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15991704#comment-15991704
] 

Wei Zheng commented on HIVE-16399:
----------------------------------

I reverted the changes to upgrade scripts 2.1.0-to-2.2.0, and put the changes in upgrade scripts
2.2.0-to-2.3.0. Also reverted changes to schema-2.2 scripts, and put the changes to schema-2.3
scripts.

Basically branch-2.2 is irrelevant to this change. It will only be effective from branch-2.3
and above.

> create an index for tc_txnid in TXN_COMPONENTS
> ----------------------------------------------
>
>                 Key: HIVE-16399
>                 URL: https://issues.apache.org/jira/browse/HIVE-16399
>             Project: Hive
>          Issue Type: Bug
>          Components: Transactions
>    Affects Versions: 1.0.0
>            Reporter: Eugene Koifman
>            Assignee: Wei Zheng
>         Attachments: HIVE-16399.branch-2.3.patch, HIVE-16399.branch-2.patch, HIVE-16399.master.patch
>
>
> w/o this TxnStore.cleanEmptyAbortedTxns() can be very slow



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