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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-13013) Further Improve concurrency in TxnHandler
Date Fri, 26 Feb 2016 06:52:18 GMT

    [ https://issues.apache.org/jira/browse/HIVE-13013?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15168555#comment-15168555
] 

Hive QA commented on HIVE-13013:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12789801/HIVE-13013.3.patch

{color:red}ERROR:{color} -1 due to no test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 3 failed/errored test(s), 9828 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testNegativeCliDriver_authorization_uri_import
org.apache.hadoop.hive.metastore.txn.TestTxnHandlerNegative.testBadConnection
org.apache.hive.jdbc.TestSSL.testSSLVersion
{noformat}

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/7095/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/7095/console
Test logs: http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-7095/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 3 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12789801 - PreCommit-HIVE-TRUNK-Build

> Further Improve concurrency in TxnHandler
> -----------------------------------------
>
>                 Key: HIVE-13013
>                 URL: https://issues.apache.org/jira/browse/HIVE-13013
>             Project: Hive
>          Issue Type: Bug
>          Components: Metastore, Transactions
>    Affects Versions: 1.0.0
>            Reporter: Eugene Koifman
>            Assignee: Eugene Koifman
>            Priority: Critical
>         Attachments: HIVE-13013.2.patch, HIVE-13013.3.patch, HIVE-13013.patch
>
>
> There are still a few operations in TxnHandler that run at Serializable isolation.
> Most or all of them can be dropped to READ_COMMITTED now that we have SELECT ... FOR
UPDATE support.  This will reduce number of deadlocks in the DBs.



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