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Posted to issues@hive.apache.org by "Lefty Leverenz (JIRA)" <ji...@apache.org> on 2016/04/26 03:11:12 UTC

[jira] [Updated] (HIVE-12439) CompactionTxnHandler.markCleaned() and TxnHandler.openTxns() misc improvements

     [ https://issues.apache.org/jira/browse/HIVE-12439?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lefty Leverenz updated HIVE-12439:
----------------------------------
    Labels:   (was: TODOC1.3 TODOC2.1)

> CompactionTxnHandler.markCleaned() and TxnHandler.openTxns() misc improvements
> ------------------------------------------------------------------------------
>
>                 Key: HIVE-12439
>                 URL: https://issues.apache.org/jira/browse/HIVE-12439
>             Project: Hive
>          Issue Type: Improvement
>          Components: Metastore, Transactions
>    Affects Versions: 1.0.0
>            Reporter: Eugene Koifman
>            Assignee: Wei Zheng
>             Fix For: 1.3.0, 2.1.0
>
>         Attachments: HIVE-12439.1.patch, HIVE-12439.2.patch, HIVE-12439.3.patch
>
>
> # add a safeguard to make sure IN clause is not too large; break up by txn id to delete from TXN_COMPONENTS where tc_txnid in ...
> # TxnHandler. openTxns() - use 1 insert with many rows in values() clause, rather than 1 DB roundtrip per row



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