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From "Ray Chiang (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HADOOP-8757) Metrics should disallow names with invalid characters
Date Fri, 19 Sep 2014 05:09:35 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-8757?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Ray Chiang reassigned HADOOP-8757:

    Assignee: Ray Chiang

> Metrics should disallow names with invalid characters
> -----------------------------------------------------
>                 Key: HADOOP-8757
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8757
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: metrics
>    Affects Versions: 2.0.0-alpha, 3.0.0
>            Reporter: Todd Lipcon
>            Assignee: Ray Chiang
>            Priority: Minor
>              Labels: newbie
>         Attachments: HADOOP-8757-01.patch
> Just spent a couple hours trying to figure out why a metric I added didn't show up in
JMX, only to eventually realize it was because I had a whitespace in the property name. This
didn't cause any errors to be logged -- the metric just didn't show up in JMX. We should check
that the name is valid and log an error, or replace invalid characters with something like
an underscore.

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