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From "Chris Douglas (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4594) Monitoring Scripts for Nagios
Date Sat, 08 Nov 2008 09:04:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4594?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12645971#action_12645971

Chris Douglas commented on HADOOP-4594:

Sorry, my previous comments were cursory and this deserves more attention. I ran this past
someone who had worked with nagios and Hadoop and it's my understanding that- while a good
base- the patch as-is is not generally applicable. Specifically, the feedback was that the
configuration contained several hard-coded values (hostnames, ports, environment variables)
and that a combination of jps and grep was not a sufficient check of node health.

What I can speak to directly: configuration files- even templates for common tools- are not
usually checked into contrib. On the other hand: you're right, there isn't a good place for
this right now. As far as monitoring goes, there are several efforts currently in progress
(Chukwa, metrics, HADOOP-3628 (the {{ping()}} functionality specifically)) that would be compelling
points of integration.

> 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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