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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-14680) retain consistent splits /during/ (as opposed to across) LLAP failures on top of HIVE-14589
Date Fri, 16 Sep 2016 20:23:20 GMT

    [ https://issues.apache.org/jira/browse/HIVE-14680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15497262#comment-15497262
] 

Hive QA commented on HIVE-14680:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12828315/HIVE-14680.01.patch

{color:green}SUCCESS:{color} +1 due to 1 test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 7 failed/errored test(s), 10562 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[acid_mapjoin]
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[ctas]
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[vector_join_part_col_char]
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[acid_bucket_pruning]
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver[explainuser_3]
org.apache.hadoop.hive.metastore.TestMetaStoreMetrics.testMetaDataCounts
org.apache.hive.jdbc.TestJdbcWithMiniHS2.testAddJarConstructorUnCaching
{noformat}

Test results: https://builds.apache.org/job/PreCommit-HIVE-MASTER-Build/1212/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-MASTER-Build/1212/console
Test logs: http://ec2-204-236-174-241.us-west-1.compute.amazonaws.com/logs/PreCommit-HIVE-MASTER-Build-1212/

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: 7 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12828315 - PreCommit-HIVE-MASTER-Build

> retain consistent splits /during/ (as opposed to across) LLAP failures on top of HIVE-14589
> -------------------------------------------------------------------------------------------
>
>                 Key: HIVE-14680
>                 URL: https://issues.apache.org/jira/browse/HIVE-14680
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>         Attachments: HIVE-14680.01.patch, HIVE-14680.02.patch, HIVE-14680.patch
>
>
> see HIVE-14589.
> Basic idea (spent about 7 minutes thinking about this based on RB comment ;)) is to return
locations for all slots to HostAffinitySplitLocationProvider, the missing slots being inactive
locations (based solely on the last slot actually present). For the splits mapped to these
locations, fall back via different hash functions, or some sort of probing.
> This still doesn't handle all the cases, namely when the last slots are gone (consistent
hashing is supposed to be good for this?); however for that we'd need more involved coordination
between nodes or a central updater to indicate the number of nodes



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