[jira] [Updated] (MAPREDUCE-3768) MR-2450 introduced a significant performance regression (Hive)
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https://issues.apache.org/jira/browse/MAPREDUCE-3768?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Robert Joseph Evans updated MAPREDUCE-3768:
---
Target Version/s: 2.0.0, 3.0.0 (was: 0.23.1)
MR-2450 introduced a significant performance regression (Hive)
--
Key: MAPREDUCE-3768
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3768
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: mrv2
Affects Versions: 0.23.1
Reporter: Eli Collins
Attachments: stopcommunicatorpatch.txt
MAPREDUCE-2450 introduced, or at least triggers, a significant performance
regression in Hive. With MR-2450 the execution time of TestCliDriver.skewjoin
goes from 2 minutes to 15 minutes. Reverting this change from the build fixes
the issue.
Here's the relevant query:
{noformat}
FROM src src1 JOIN src src2 ON (src1.key = src2.key)
INSERT OVERWRITE TABLE dest_j1 SELECT src1.key, src2.value;
{noformat}
You can reproduce this by running the following from Hive 8.0 against Hadoop
built from branch-23.
{noformat}
ant very-clean package test -Dtestcase=TestCliDriver -Dqfile=skewjoin.q
{noformat}
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[jira] [Updated] (MAPREDUCE-3768) MR-2450 introduced a significant performance regression (Hive)
[
https://issues.apache.org/jira/browse/MAPREDUCE-3768?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Amol Kekre updated MAPREDUCE-3768:
--
Summary: MR-2450 introduced a significant performance regression (Hive)
(was: MR-2450 introduced a significant performance regression)
MR-2450 introduced a significant performance regression (Hive)
--
Key: MAPREDUCE-3768
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3768
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: mrv2
Affects Versions: 0.23.1
Reporter: Eli Collins
Priority: Blocker
Attachments: stopcommunicatorpatch.txt
MAPREDUCE-2450 introduced, or at least triggers, a significant performance
regression in Hive. With MR-2450 the execution time of TestCliDriver.skewjoin
goes from 2 minutes to 15 minutes. Reverting this change from the build fixes
the issue.
Here's the relevant query:
{noformat}
FROM src src1 JOIN src src2 ON (src1.key = src2.key)
INSERT OVERWRITE TABLE dest_j1 SELECT src1.key, src2.value;
{noformat}
You can reproduce this by running the following from Hive 8.0 against Hadoop
built from branch-23.
{noformat}
ant very-clean package test -Dtestcase=TestCliDriver -Dqfile=skewjoin.q
{noformat}
--
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[jira] [Updated] (MAPREDUCE-3768) MR-2450 introduced a significant performance regression (Hive)
[
https://issues.apache.org/jira/browse/MAPREDUCE-3768?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Vinod Kumar Vavilapalli updated MAPREDUCE-3768:
---
Priority: Major (was: Blocker)
Also, given MAPREDUCE-3809 is in, we believe this is fixed. Hence reducing the
priority, please reprioritize if it isn't fixed yet. Thanks.
MR-2450 introduced a significant performance regression (Hive)
--
Key: MAPREDUCE-3768
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3768
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: mrv2
Affects Versions: 0.23.1
Reporter: Eli Collins
Attachments: stopcommunicatorpatch.txt
MAPREDUCE-2450 introduced, or at least triggers, a significant performance
regression in Hive. With MR-2450 the execution time of TestCliDriver.skewjoin
goes from 2 minutes to 15 minutes. Reverting this change from the build fixes
the issue.
Here's the relevant query:
{noformat}
FROM src src1 JOIN src src2 ON (src1.key = src2.key)
INSERT OVERWRITE TABLE dest_j1 SELECT src1.key, src2.value;
{noformat}
You can reproduce this by running the following from Hive 8.0 against Hadoop
built from branch-23.
{noformat}
ant very-clean package test -Dtestcase=TestCliDriver -Dqfile=skewjoin.q
{noformat}
--
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