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Date: Sun, 2 Jan 2011 00:37:45 -0500 (EST)
From: "Eric Yang (JIRA)" <jira@apache.org>
To: chukwa-dev@incubator.apache.org
Subject: [jira] Updated: (CHUKWA-574) Multiple metrics emite at the same
 time causes logger to print corrupted metrics
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     [ https://issues.apache.org/jira/browse/CHUKWA-574?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eric Yang updated CHUKWA-574:
-----------------------------

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

Thanks Ari, I just committed this.

> Multiple metrics emite at the same time causes logger to print corrupted metrics
> --------------------------------------------------------------------------------
>
>                 Key: CHUKWA-574
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-574
>             Project: Chukwa
>          Issue Type: Bug
>          Components: input tools
>         Environment: Java 6, Mac OS X 10.6
>            Reporter: Eric Yang
>            Assignee: Eric Yang
>             Fix For: 0.5.0
>
>         Attachments: CHUKWA-574.patch
>
>
> Log4JMetricsContext only has synchronized locks to initialize the logger.  When they are multiple threads trying to emite metrics, there is a slight possibility that the output of multiple metrics written as one log entry.  Synchronized locks should apply for the whole emiteRecord method.

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