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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-11916) TxnHandler.getOpenTxnsInfo() and getOpenTxns() may produce inconsistent result
Date Tue, 29 Sep 2015 02:13:04 GMT

    [ https://issues.apache.org/jira/browse/HIVE-11916?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14934496#comment-14934496
] 

Hive QA commented on HIVE-11916:
--------------------------------



{color:red}Overall{color}: -1 at least one tests failed

Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12762489/HIVE-11916.patch

{color:red}ERROR:{color} -1 due to 4 failed/errored test(s), 9631 tests executed
*Failed tests:*
{noformat}
TestMiniTezCliDriver-orc_merge6.q-vector_outer_join0.q-mapreduce1.q-and-12-more - did not
produce a TEST-*.xml file
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_vector_groupby_reduce
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_vector_groupby_reduce
org.apache.hive.hcatalog.api.TestHCatClient.testTableSchemaPropagation
{noformat}

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/5452/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/5452/console
Test logs: http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-5452/

Messages:
{noformat}
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: 4 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12762489 - PreCommit-HIVE-TRUNK-Build

> TxnHandler.getOpenTxnsInfo() and getOpenTxns() may produce inconsistent result
> ------------------------------------------------------------------------------
>
>                 Key: HIVE-11916
>                 URL: https://issues.apache.org/jira/browse/HIVE-11916
>             Project: Hive
>          Issue Type: Bug
>          Components: Transactions
>    Affects Versions: 1.0.1
>            Reporter: Eugene Koifman
>            Assignee: Eugene Koifman
>         Attachments: HIVE-11916.patch
>
>
> both run at READ_COMMITTED isolation level and each runs 2 queries.
> Thus it's possible for a new txn to start/commit after hight water mark is recored by
these methods.  So the returned list may have txns above the HWM.
> This can be fixed by adding "WHERE TXN_ID < hwm" clause to 2nd query in each case




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