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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-7219) Improve performance of serialization utils in ORC
Date Tue, 17 Jun 2014 17:46:21 GMT

    [ https://issues.apache.org/jira/browse/HIVE-7219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14034100#comment-14034100
] 

Hive QA commented on HIVE-7219:
-------------------------------



{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/12650656/HIVE-7219.4.patch

{color:red}ERROR:{color} -1 due to 4 failed/errored test(s), 5653 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_parquet_columnar
org.apache.hadoop.hive.cli.TestMinimrCliDriver.testCliDriver_root_dir_external_table
org.apache.hadoop.hive.cli.TestNegativeCliDriver.testNegativeCliDriver_authorization_ctas
org.apache.hadoop.hive.ql.exec.tez.TestTezTask.testSubmit
{noformat}

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-Build/491/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-Build/491/console
Test logs: http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-Build-491/

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: 12650656

> Improve performance of serialization utils in ORC
> -------------------------------------------------
>
>                 Key: HIVE-7219
>                 URL: https://issues.apache.org/jira/browse/HIVE-7219
>             Project: Hive
>          Issue Type: Improvement
>          Components: File Formats
>    Affects Versions: 0.14.0
>            Reporter: Prasanth J
>            Assignee: Prasanth J
>         Attachments: HIVE-7219.1.patch, HIVE-7219.2.patch, HIVE-7219.3.patch, HIVE-7219.4.patch,
orc-read-perf-jmh-benchmark.png
>
>
> ORC uses serialization utils heavily for reading and writing data. The bitpacking and
unpacking code in writeInts() and readInts() can be unrolled for better performance. Also
double reader/writer performance can be improved by bulk reading/writing from/to byte array.



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