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Posted to mapreduce-issues@hadoop.apache.org by "Luke Lu (JIRA)" <ji...@apache.org> on 2012/07/05 12:21:36 UTC
[jira] [Created] (MAPREDUCE-4399) Fix performance regression in
shuffle
Luke Lu created MAPREDUCE-4399:
----------------------------------
Summary: Fix performance regression in shuffle
Key: MAPREDUCE-4399
URL: https://issues.apache.org/jira/browse/MAPREDUCE-4399
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: tasktracker
Affects Versions: 1.0.3, 0.20.203.0
Reporter: Luke Lu
Assignee: Luke Lu
There is a significant (up to 3x) performance regression in shuffle (vs 0.20.2) in the Hadoop 1.x series. Most noticeable with high-end switches.
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[jira] [Updated] (MAPREDUCE-4399) Fix performance regression in
shuffle
Posted by "Arun C Murthy (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4399?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Arun C Murthy updated MAPREDUCE-4399:
-------------------------------------
Comment: was deleted
(was: The crux of the problem is jetty 6.1.26's internal buffer management with transfer-encoding = trunked. The issue was also independently discovered and analyzed elsewhere: http://goo.gl/dtM4D
The patch is trivial.)
> Fix performance regression in shuffle
> --------------------------------------
>
> Key: MAPREDUCE-4399
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4399
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Affects Versions: 0.20.203.0, 1.0.3
> Reporter: Luke Lu
> Assignee: Luke Lu
> Attachments: mapreduce-4399-branch-1.patch
>
>
> There is a significant (up to 3x) performance regression in shuffle (vs 0.20.2) in the Hadoop 1.x series. Most noticeable with high-end switches.
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[jira] [Updated] (MAPREDUCE-4399) Fix performance regression in
shuffle
Posted by "Suresh Srinivas (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4399?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Suresh Srinivas updated MAPREDUCE-4399:
---------------------------------------
Component/s: performance
> Fix performance regression in shuffle
> --------------------------------------
>
> Key: MAPREDUCE-4399
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4399
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: performance, tasktracker
> Affects Versions: 0.20.203.0, 1.0.3
> Reporter: Luke Lu
> Assignee: Luke Lu
> Attachments: mapreduce-4399-branch-1.patch
>
>
> There is a significant (up to 3x) performance regression in shuffle (vs 0.20.2) in the Hadoop 1.x series. Most noticeable with high-end switches.
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[jira] [Commented] (MAPREDUCE-4399) Fix performance regression in
shuffle
Posted by "Luke Lu (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13406967#comment-13406967 ]
Luke Lu commented on MAPREDUCE-4399:
------------------------------------
Thanks to John Poelman and Shreyas Subramanya of IBM BigInsights performance QA for noticing the issue and verifying my fix.
> Fix performance regression in shuffle
> --------------------------------------
>
> Key: MAPREDUCE-4399
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4399
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Affects Versions: 0.20.203.0, 1.0.3
> Reporter: Luke Lu
> Assignee: Luke Lu
>
> There is a significant (up to 3x) performance regression in shuffle (vs 0.20.2) in the Hadoop 1.x series. Most noticeable with high-end switches.
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[jira] [Commented] (MAPREDUCE-4399) Fix performance regression in
shuffle
Posted by "Luke Lu (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13408411#comment-13408411 ]
Luke Lu commented on MAPREDUCE-4399:
------------------------------------
Oops: the link should be: http://goo.gl/Wln7Z
> Fix performance regression in shuffle
> --------------------------------------
>
> Key: MAPREDUCE-4399
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4399
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Affects Versions: 0.20.203.0, 1.0.3
> Reporter: Luke Lu
> Assignee: Luke Lu
> Attachments: mapreduce-4399-branch-1.patch
>
>
> There is a significant (up to 3x) performance regression in shuffle (vs 0.20.2) in the Hadoop 1.x series. Most noticeable with high-end switches.
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[jira] [Commented] (MAPREDUCE-4399) Fix performance regression in
shuffle
Posted by "Matt Foley (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13421624#comment-13421624 ]
Matt Foley commented on MAPREDUCE-4399:
---------------------------------------
Committed to branch-1.1 and branch-1.0. Thanks, Luke!
> Fix performance regression in shuffle
> --------------------------------------
>
> Key: MAPREDUCE-4399
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4399
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: performance, tasktracker
> Affects Versions: 0.20.203.0, 1.0.3
> Reporter: Luke Lu
> Assignee: Luke Lu
> Attachments: mapreduce-4399-branch-1.patch
>
>
> There is a significant (up to 3x) performance regression in shuffle (vs 0.20.2) in the Hadoop 1.x series. Most noticeable with high-end switches.
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[jira] [Updated] (MAPREDUCE-4399) Fix performance regression in
shuffle
Posted by "Matt Foley (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4399?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Matt Foley updated MAPREDUCE-4399:
----------------------------------
Fix Version/s: 1.1.0
> Fix performance regression in shuffle
> --------------------------------------
>
> Key: MAPREDUCE-4399
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4399
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: performance, tasktracker
> Affects Versions: 0.20.203.0, 1.0.3
> Reporter: Luke Lu
> Assignee: Luke Lu
> Fix For: 1.1.0
>
> Attachments: mapreduce-4399-branch-1.patch
>
>
> There is a significant (up to 3x) performance regression in shuffle (vs 0.20.2) in the Hadoop 1.x series. Most noticeable with high-end switches.
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[jira] [Resolved] (MAPREDUCE-4399) Fix performance regression in
shuffle
Posted by "Suresh Srinivas (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4399?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Suresh Srinivas resolved MAPREDUCE-4399.
----------------------------------------
Resolution: Fixed
Hadoop Flags: Reviewed
I committed the patch to branch-1 and for 1.1.0.
Thank you Luke for the patch. Thank you John Poelman and Shreyas Subramanya for noticing the issue and verifying the fix.
> Fix performance regression in shuffle
> --------------------------------------
>
> Key: MAPREDUCE-4399
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4399
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: performance, tasktracker
> Affects Versions: 0.20.203.0, 1.0.3
> Reporter: Luke Lu
> Assignee: Luke Lu
> Attachments: mapreduce-4399-branch-1.patch
>
>
> There is a significant (up to 3x) performance regression in shuffle (vs 0.20.2) in the Hadoop 1.x series. Most noticeable with high-end switches.
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[jira] [Updated] (MAPREDUCE-4399) Fix performance regression in
shuffle
Posted by "Matt Foley (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4399?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Matt Foley updated MAPREDUCE-4399:
----------------------------------
Fix Version/s: (was: 1.1.0)
1.0.4
> Fix performance regression in shuffle
> --------------------------------------
>
> Key: MAPREDUCE-4399
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4399
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: performance, tasktracker
> Affects Versions: 0.20.203.0, 1.0.3
> Reporter: Luke Lu
> Assignee: Luke Lu
> Fix For: 1.0.4
>
> Attachments: mapreduce-4399-branch-1.patch
>
>
> There is a significant (up to 3x) performance regression in shuffle (vs 0.20.2) in the Hadoop 1.x series. Most noticeable with high-end switches.
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[jira] [Updated] (MAPREDUCE-4399) Fix performance regression in
shuffle
Posted by "Matt Foley (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4399?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Matt Foley updated MAPREDUCE-4399:
----------------------------------
Target Version/s: 1.0.4 (was: 1.1.0)
> Fix performance regression in shuffle
> --------------------------------------
>
> Key: MAPREDUCE-4399
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4399
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: performance, tasktracker
> Affects Versions: 0.20.203.0, 1.0.3
> Reporter: Luke Lu
> Assignee: Luke Lu
> Fix For: 1.1.0
>
> Attachments: mapreduce-4399-branch-1.patch
>
>
> There is a significant (up to 3x) performance regression in shuffle (vs 0.20.2) in the Hadoop 1.x series. Most noticeable with high-end switches.
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[jira] [Commented] (MAPREDUCE-4399) Fix performance regression in
shuffle
Posted by "Suresh Srinivas (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13419409#comment-13419409 ]
Suresh Srinivas commented on MAPREDUCE-4399:
--------------------------------------------
Nicholas, can you please verify if this is an issue for WebHDFS (both on 1.0 and trunk?)
> Fix performance regression in shuffle
> --------------------------------------
>
> Key: MAPREDUCE-4399
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4399
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: performance, tasktracker
> Affects Versions: 0.20.203.0, 1.0.3
> Reporter: Luke Lu
> Assignee: Luke Lu
> Attachments: mapreduce-4399-branch-1.patch
>
>
> There is a significant (up to 3x) performance regression in shuffle (vs 0.20.2) in the Hadoop 1.x series. Most noticeable with high-end switches.
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[jira] [Commented] (MAPREDUCE-4399) Fix performance regression in
shuffle
Posted by "Suresh Srinivas (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13419397#comment-13419397 ]
Suresh Srinivas commented on MAPREDUCE-4399:
--------------------------------------------
Given the code is the same, this may not be regression compared to 0.20.2. However, this is straightforward change, and given the link you posted, I am +1 on committing this.
> Fix performance regression in shuffle
> --------------------------------------
>
> Key: MAPREDUCE-4399
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4399
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: performance, tasktracker
> Affects Versions: 0.20.203.0, 1.0.3
> Reporter: Luke Lu
> Assignee: Luke Lu
> Attachments: mapreduce-4399-branch-1.patch
>
>
> There is a significant (up to 3x) performance regression in shuffle (vs 0.20.2) in the Hadoop 1.x series. Most noticeable with high-end switches.
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[jira] [Updated] (MAPREDUCE-4399) Fix performance regression in
shuffle
Posted by "Luke Lu (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4399?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Luke Lu updated MAPREDUCE-4399:
-------------------------------
Attachment: mapreduce-4399-branch-1.patch
The crux of the problem is jetty 6.1.26's internal buffer management with transfer-encoding = trunked. The issue was also independently discovered and analyzed elsewhere: http://goo.gl/dtM4D
The patch is trivial.
> Fix performance regression in shuffle
> --------------------------------------
>
> Key: MAPREDUCE-4399
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4399
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Affects Versions: 0.20.203.0, 1.0.3
> Reporter: Luke Lu
> Assignee: Luke Lu
> Attachments: mapreduce-4399-branch-1.patch
>
>
> There is a significant (up to 3x) performance regression in shuffle (vs 0.20.2) in the Hadoop 1.x series. Most noticeable with high-end switches.
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[jira] [Updated] (MAPREDUCE-4399) Fix performance regression in
shuffle
Posted by "Arun C Murthy (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4399?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Arun C Murthy updated MAPREDUCE-4399:
-------------------------------------
Comment: was deleted
(was: Oops: the link should be: http://goo.gl/Wln7Z)
> Fix performance regression in shuffle
> --------------------------------------
>
> Key: MAPREDUCE-4399
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4399
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Affects Versions: 0.20.203.0, 1.0.3
> Reporter: Luke Lu
> Assignee: Luke Lu
> Attachments: mapreduce-4399-branch-1.patch
>
>
> There is a significant (up to 3x) performance regression in shuffle (vs 0.20.2) in the Hadoop 1.x series. Most noticeable with high-end switches.
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[jira] [Commented] (MAPREDUCE-4399) Fix performance regression in
shuffle
Posted by "Luke Lu (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13408555#comment-13408555 ]
Luke Lu commented on MAPREDUCE-4399:
------------------------------------
The crux of the problem is jetty 6.1.26's internal buffer management with transfer-encoding = chunked. The issue was also independently discovered and analyzed elsewhere: http://goo.gl/Wln7Z
> Fix performance regression in shuffle
> --------------------------------------
>
> Key: MAPREDUCE-4399
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4399
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Affects Versions: 0.20.203.0, 1.0.3
> Reporter: Luke Lu
> Assignee: Luke Lu
> Attachments: mapreduce-4399-branch-1.patch
>
>
> There is a significant (up to 3x) performance regression in shuffle (vs 0.20.2) in the Hadoop 1.x series. Most noticeable with high-end switches.
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[jira] [Commented] (MAPREDUCE-4399) Fix performance regression in
shuffle
Posted by "Luke Lu (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13419454#comment-13419454 ]
Luke Lu commented on MAPREDUCE-4399:
------------------------------------
@Suresh, 0.20.2 use jetty 6.1.14, which doesn't have this particular issue. This is a workaround specifically for jetty 6.1.26 and harmless for other versions.
> Fix performance regression in shuffle
> --------------------------------------
>
> Key: MAPREDUCE-4399
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4399
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: performance, tasktracker
> Affects Versions: 0.20.203.0, 1.0.3
> Reporter: Luke Lu
> Assignee: Luke Lu
> Attachments: mapreduce-4399-branch-1.patch
>
>
> There is a significant (up to 3x) performance regression in shuffle (vs 0.20.2) in the Hadoop 1.x series. Most noticeable with high-end switches.
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