[jira] Commented: (MAPREDUCE-1943) Implement limits on per-job JobConf, Counters, StatusReport, Split-Sizes

2010-10-11 Thread Liyin Liang (JIRA)

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https://issues.apache.org/jira/browse/MAPREDUCE-1943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12920079#action_12920079
 ] 

Liyin Liang commented on MAPREDUCE-1943:


your latest patch is  based on your previous patch, why?

> Implement limits on per-job JobConf, Counters, StatusReport, Split-Sizes
> 
>
> Key: MAPREDUCE-1943
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1943
> Project: Hadoop Map/Reduce
>  Issue Type: Improvement
>Reporter: Mahadev konar
>Assignee: Mahadev konar
> Fix For: 0.22.0
>
> Attachments: MAPREDUCE-1943-0.20-yahoo.patch, 
> MAPREDUCE-1943-0.20-yahoo.patch, MAPREDUCE-1943-yahoo-hadoop-0.20S-fix.patch, 
> MAPREDUCE-1943-yahoo-hadoop-0.20S-fix.patch, 
> MAPREDUCE-1943-yahoo-hadoop-0.20S-fix.patch, 
> MAPREDUCE-1943-yahoo-hadoop-0.20S-fix.patch, 
> MAPREDUCE-1943-yahoo-hadoop-0.20S-fix.patch, 
> MAPREDUCE-1943-yahoo-hadoop-0.20S-fix.patch, 
> MAPREDUCE-1943-yahoo-hadoop-0.20S.patch
>
>
> We have come across issues in production clusters wherein users abuse 
> counters, statusreport messages and split sizes. One such case was when one 
> of the users had 100 million counters. This leads to jobtracker going out of 
> memory and being unresponsive. In this jira I am proposing to put sane limits 
> on the status report length, the number of counters and the size of block 
> locations returned by the input split. 

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[jira] Commented: (MAPREDUCE-1943) Implement limits on per-job JobConf, Counters, StatusReport, Split-Sizes

2010-07-14 Thread Amareshwari Sriramadasu (JIRA)

[ 
https://issues.apache.org/jira/browse/MAPREDUCE-1943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12888693#action_12888693
 ] 

Amareshwari Sriramadasu commented on MAPREDUCE-1943:


Limiting task diagnostic info and status are done in MAPREDUCE-1482.

> Implement limits on per-job JobConf, Counters, StatusReport, Split-Sizes
> 
>
> Key: MAPREDUCE-1943
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1943
> Project: Hadoop Map/Reduce
>  Issue Type: Improvement
>Reporter: Mahadev konar
>Assignee: Mahadev konar
> Attachments: MAPREDUCE-1943-0.20-yahoo.patch
>
>
> We have come across issues in production clusters wherein users abuse 
> counters, statusreport messages and split sizes. One such case was when one 
> of the users had 100 million counters. This leads to jobtracker going out of 
> memory and being unresponsive. In this jira I am proposing to put sane limits 
> on the status report length, the number of counters and the size of block 
> locations returned by the input split. 

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[jira] Commented: (MAPREDUCE-1943) Implement limits on per-job JobConf, Counters, StatusReport, Split-Sizes

2010-07-14 Thread Scott Chen (JIRA)

[ 
https://issues.apache.org/jira/browse/MAPREDUCE-1943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12888557#action_12888557
 ] 

Scott Chen commented on MAPREDUCE-1943:
---

+1 to the idea. We have seen the huge split-size kills JT. This will help.

> Implement limits on per-job JobConf, Counters, StatusReport, Split-Sizes
> 
>
> Key: MAPREDUCE-1943
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1943
> Project: Hadoop Map/Reduce
>  Issue Type: Improvement
>Reporter: Mahadev konar
>Assignee: Mahadev konar
>
> We have come across issues in production clusters wherein users abuse 
> counters, statusreport messages and split sizes. One such case was when one 
> of the users had 100 million counters. This leads to jobtracker going out of 
> memory and being unresponsive. In this jira I am proposing to put sane limits 
> on the status report length, the number of counters and the size of block 
> locations returned by the input split. 

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