You are viewing a plain text version of this content. The canonical link for it is here.
Posted to mapreduce-issues@hadoop.apache.org by "Scott Chen (JIRA)" <ji...@apache.org> on 2010/07/28 01:37:16 UTC
[jira] Created: (MAPREDUCE-1974) FairScheduler can preempt the same
task many times
FairScheduler can preempt the same task many times
--------------------------------------------------
Key: MAPREDUCE-1974
URL: https://issues.apache.org/jira/browse/MAPREDUCE-1974
Project: Hadoop Map/Reduce
Issue Type: Bug
Reporter: Scott Chen
Assignee: Scott Chen
In FairScheduler.preemptTasks(), tasks are collected from JobInProgress.runningMapCache.
But tasks repeat multiple times in JobInProgress.runningMapCache (on rack, node and cluster).
This makes FairScheduler preempt the same task many times.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
[jira] Updated: (MAPREDUCE-1974) FairScheduler can preempt the same
task many times
Posted by "Scott Chen (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-1974?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Scott Chen updated MAPREDUCE-1974:
----------------------------------
Status: Open (was: Patch Available)
> FairScheduler can preempt the same task many times
> --------------------------------------------------
>
> Key: MAPREDUCE-1974
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1974
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: contrib/fair-share
> Affects Versions: 0.21.0, 0.22.0
> Reporter: Scott Chen
> Assignee: Scott Chen
> Fix For: 0.22.0
>
> Attachments: MAPREDUCE-1974.txt
>
>
> In FairScheduler.preemptTasks(), tasks are collected from JobInProgress.runningMapCache.
> But tasks repeat multiple times in JobInProgress.runningMapCache (on rack, node and cluster).
> This makes FairScheduler preempt the same task many times.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
[jira] Updated: (MAPREDUCE-1974) FairScheduler can preempt the same
task many times
Posted by "Scott Chen (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-1974?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Scott Chen updated MAPREDUCE-1974:
----------------------------------
Fix Version/s: 0.22.0
Affects Version/s: 0.21.0
0.22.0
(was: 0.20.1)
> FairScheduler can preempt the same task many times
> --------------------------------------------------
>
> Key: MAPREDUCE-1974
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1974
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: contrib/fair-share
> Affects Versions: 0.21.0, 0.22.0
> Reporter: Scott Chen
> Assignee: Scott Chen
> Fix For: 0.22.0
>
>
> In FairScheduler.preemptTasks(), tasks are collected from JobInProgress.runningMapCache.
> But tasks repeat multiple times in JobInProgress.runningMapCache (on rack, node and cluster).
> This makes FairScheduler preempt the same task many times.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
[jira] Updated: (MAPREDUCE-1974) FairScheduler can preempt the same
task many times
Posted by "Scott Chen (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-1974?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Scott Chen updated MAPREDUCE-1974:
----------------------------------
Attachment: MAPREDUCE-1974.txt
> FairScheduler can preempt the same task many times
> --------------------------------------------------
>
> Key: MAPREDUCE-1974
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1974
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: contrib/fair-share
> Affects Versions: 0.21.0, 0.22.0
> Reporter: Scott Chen
> Assignee: Scott Chen
> Fix For: 0.22.0
>
> Attachments: MAPREDUCE-1974.txt
>
>
> In FairScheduler.preemptTasks(), tasks are collected from JobInProgress.runningMapCache.
> But tasks repeat multiple times in JobInProgress.runningMapCache (on rack, node and cluster).
> This makes FairScheduler preempt the same task many times.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
[jira] Updated: (MAPREDUCE-1974) FairScheduler can preempt the same
task many times
Posted by "Scott Chen (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-1974?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Scott Chen updated MAPREDUCE-1974:
----------------------------------
Affects Version/s: 0.20.1
Component/s: contrib/fair-share
> FairScheduler can preempt the same task many times
> --------------------------------------------------
>
> Key: MAPREDUCE-1974
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1974
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: contrib/fair-share
> Affects Versions: 0.20.1
> Reporter: Scott Chen
> Assignee: Scott Chen
>
> In FairScheduler.preemptTasks(), tasks are collected from JobInProgress.runningMapCache.
> But tasks repeat multiple times in JobInProgress.runningMapCache (on rack, node and cluster).
> This makes FairScheduler preempt the same task many times.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
[jira] Updated: (MAPREDUCE-1974) FairScheduler can preempt the same
task many times
Posted by "Scott Chen (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-1974?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Scott Chen updated MAPREDUCE-1974:
----------------------------------
Status: Patch Available (was: Open)
> FairScheduler can preempt the same task many times
> --------------------------------------------------
>
> Key: MAPREDUCE-1974
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1974
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: contrib/fair-share
> Affects Versions: 0.21.0, 0.22.0
> Reporter: Scott Chen
> Assignee: Scott Chen
> Fix For: 0.22.0
>
> Attachments: MAPREDUCE-1974.txt
>
>
> In FairScheduler.preemptTasks(), tasks are collected from JobInProgress.runningMapCache.
> But tasks repeat multiple times in JobInProgress.runningMapCache (on rack, node and cluster).
> This makes FairScheduler preempt the same task many times.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
[jira] Commented: (MAPREDUCE-1974) FairScheduler can preempt the
same task many times
Posted by "Matei Zaharia (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-1974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12903055#action_12903055 ]
Matei Zaharia commented on MAPREDUCE-1974:
------------------------------------------
The patch looks good to me. Is there any way to test this? (Did you at least try to print the list before and see that a task is in there multiple times?)
> FairScheduler can preempt the same task many times
> --------------------------------------------------
>
> Key: MAPREDUCE-1974
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1974
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: contrib/fair-share
> Affects Versions: 0.21.0, 0.22.0
> Reporter: Scott Chen
> Assignee: Scott Chen
> Fix For: 0.22.0
>
> Attachments: MAPREDUCE-1974.txt
>
>
> In FairScheduler.preemptTasks(), tasks are collected from JobInProgress.runningMapCache.
> But tasks repeat multiple times in JobInProgress.runningMapCache (on rack, node and cluster).
> This makes FairScheduler preempt the same task many times.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
[jira] Commented: (MAPREDUCE-1974) FairScheduler can preempt the
same task many times
Posted by "Scott Chen (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-1974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12903099#action_12903099 ]
Scott Chen commented on MAPREDUCE-1974:
---------------------------------------
Hi Matei,
I see multiple same preemption in the log. I think I should add a test here to verify that.
Scott
> FairScheduler can preempt the same task many times
> --------------------------------------------------
>
> Key: MAPREDUCE-1974
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1974
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: contrib/fair-share
> Affects Versions: 0.21.0, 0.22.0
> Reporter: Scott Chen
> Assignee: Scott Chen
> Fix For: 0.22.0
>
> Attachments: MAPREDUCE-1974.txt
>
>
> In FairScheduler.preemptTasks(), tasks are collected from JobInProgress.runningMapCache.
> But tasks repeat multiple times in JobInProgress.runningMapCache (on rack, node and cluster).
> This makes FairScheduler preempt the same task many times.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.