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https://issues.apache.org/jira/browse/HADOOP-3585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12612153#action_12612153
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Ari Rabkin commented on HADOOP-3585:
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Rick: Chukwa opted to go for the separate-process design for reasons along
the lines you lay out. I haven't studied the failmon code very closely, but it
looks like most of what it does could be done pretty easily from a separate
process.
Runping: My sense is that having the failmon data collection code wrapped in a
Chukwa adaptor is more convenient, since it avoids the complications of failmon
log rotation, and the like. Also, failmon was written with a fairly similar
programming model, so the work involved in merging the two efforts should be
quite modest.
> Hardware Failure Monitoring in large clusters running Hadoop/HDFS
> -----------------------------------------------------------------
>
> Key: HADOOP-3585
> URL: https://issues.apache.org/jira/browse/HADOOP-3585
> Project: Hadoop Core
> Issue Type: New Feature
> Environment: Linux
> Reporter: Ioannis Koltsidas
> Priority: Minor
> Attachments: FailMon-standalone.zip, failmon.pdf,
> FailMon_Package_descrip.html, HADOOP-3585.patch
>
> Original Estimate: 480h
> Remaining Estimate: 480h
>
> At IBM we're interested in identifying hardware failures on large clusters
> running Hadoop/HDFS. We are working on a framework that will enable nodes to
> identify failures on their hardware using the Hadoop log, the system log and
> various OS hardware diagnosing utilities. The implementation details are not
> very clear, but you can see a draft of our design in the attached document.
> We are pretty interested in Hadoop and system logs from failed machines, so
> if you are in possession of such, you are very welcome to contribute them;
> they would be of great value for hardware failure diagnosing.
> Some details about our design can be found in the attached document
> failmon.doc. More details will follow in a later post.
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