hive-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Eugene Koifman (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-17340) TxnHandler.checkLock() - reduce number of SQL statements
Date Fri, 25 Aug 2017 19:58:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-17340?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eugene Koifman updated HIVE-17340:
----------------------------------
       Resolution: Fixed
    Fix Version/s: 3.0.0
           Status: Resolved  (was: Patch Available)

> TxnHandler.checkLock() - reduce number of SQL statements
> --------------------------------------------------------
>
>                 Key: HIVE-17340
>                 URL: https://issues.apache.org/jira/browse/HIVE-17340
>             Project: Hive
>          Issue Type: Improvement
>          Components: Transactions
>            Reporter: Eugene Koifman
>            Assignee: Eugene Koifman
>             Fix For: 3.0.0
>
>         Attachments: HIVE-17340.03.patch
>
>
> This calls acquire(Connection dbConn, Statement stmt, long extLockId, LockInfo lockInfo)
> for each lock in the same DB transaction - 1 Update stmt per acquire().
> There is no reason all of them cannot be sent in 1 statement if all the locks are granted
> With a lot of partitions this can be a perf issue



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

Mime
View raw message