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https://issues.apache.org/jira/browse/HADOOP-5931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12721168#action_12721168
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Sharad Agarwal commented on HADOOP-5931:
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Had a discussion with Owen, following came up:
- Metric Api is an export interface, so we should not use it. We want to build
the metrics natively in Hadoop so it should not be exposed via metrics config
file.
- It is better to do the collection in jobtracker. The restart concern will go
away as at some point we will have heartbeat transaction log. So recovery would
be generic. Having it in jobtracker will give us more control to make
scheduling decisions.
> Collect information about number of tasks succeeded / total per time unit for
> a tasktracker.
> ---------------------------------------------------------------------------------------------
>
> Key: HADOOP-5931
> URL: https://issues.apache.org/jira/browse/HADOOP-5931
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Reporter: Hemanth Yamijala
> Assignee: Sharad Agarwal
> Fix For: 0.21.0
>
> Attachments: 5931_v1.patch, 5931_v2.patch
>
>
> Collecting information of number of tasks succeeded / total per tasktracker
> and being able to see these counts per hour, day and since start time will
> help reason about things like the blacklisting strategy.
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