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https://issues.apache.org/jira/browse/HADOOP-4594?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12646010#action_12646010
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Edward Capriolo commented on HADOOP-4594:
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I have read up on Chukwa and HADOOP-3628, I think ping() would work with nagios
well. My goal was to provided something that works today. I agree that jps and
grep is not a great way to monitor anything, but I also believe in the 80 / 20
rule. Checking the reply of each Component web interface is a step better.
I was thinking checks like this might be meaningful useful without being
complicated.
NumberOfDeadNodes > X -- This alarm would go off if the number of dead nodes in
the cluster goes higher then X
PercentageOfDeadNodes > X -- This would alarm if the % of dead nodes goes
higher then X
WriteFileReadFile (String hdfspath ) -- This would attempt to read and write a
file.
ReadFile (String hdfspath) -- would attempt to read a file
TotalFreeDFSPrecent < X -- Would alarm when the DFS spaces falls below a
certain value.
These are some things that someone in an administrative role would want.
> Monitoring Scripts for Nagios
> -----------------------------
>
> Key: HADOOP-4594
> URL: https://issues.apache.org/jira/browse/HADOOP-4594
> Project: Hadoop Core
> Issue Type: Wish
> Reporter: Edward Capriolo
> Priority: Minor
> Attachments: HADOOP-4594.patch
>
>
> I would like to create a set of local via NRPE and remote check scripts that
> can be shipped with the hadoop distribution and used to monitor Hadoop. I
> already have completed the NRPE scripts. The second set of scripts would use
> wget to read the output of the hadoop web interfaces. Do these already exist?
> I guess these would fall under a new contrib project.
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