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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-18006) Optimize memory footprint of HLLDenseRegister
Date Wed, 08 Nov 2017 10:45:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-18006?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16243691#comment-16243691
] 

Hive QA commented on HIVE-18006:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12896513/HIVE-18006.2.patch

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

{color:red}ERROR:{color} -1 due to 12 failed/errored test(s), 11372 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[insert_values_orig_table_use_metadata]
(batchId=62)
org.apache.hadoop.hive.cli.TestMiniLlapCliDriver.testCliDriver[unionDistinct_1] (batchId=146)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[sysdb] (batchId=156)
org.apache.hadoop.hive.cli.TestMiniSparkOnYarnCliDriver.testCliDriver[bucketmapjoin7] (batchId=173)
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver[explainanalyze_2] (batchId=102)
org.apache.hadoop.hive.cli.TestNegativeMinimrCliDriver.testCliDriver[ct_noperm_loc] (batchId=94)
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver[bucketmapjoin7] (batchId=116)
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver[subquery_multi] (batchId=111)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query14] (batchId=243)
org.apache.hadoop.hive.cli.TestTezPerfCliDriver.testCliDriver[query23] (batchId=243)
org.apache.hadoop.hive.cli.control.TestDanglingQOuts.checkDanglingQOut (batchId=206)
org.apache.hadoop.hive.ql.parse.TestReplicationScenarios.testConstraints (batchId=223)
{noformat}

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/7701/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/7701/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-7701/

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: 12 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12896513 - PreCommit-HIVE-Build

> Optimize memory footprint of HLLDenseRegister
> ---------------------------------------------
>
>                 Key: HIVE-18006
>                 URL: https://issues.apache.org/jira/browse/HIVE-18006
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 3.0.0
>            Reporter: Prasanth Jayachandran
>            Assignee: Prasanth Jayachandran
>             Fix For: 3.0.0
>
>         Attachments: HIVE-18006.1.patch, HIVE-18006.2.patch
>
>
> {code}
> private double[] invPow2Register;
> {code}
> seems to add up memory when caching column stats (#table * #partition * #cols). This
register can be pre-computed and stored as constant. 



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