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Date: Tue, 2 Dec 2008 19:24:46 -0800 (PST)
From: "Chris Douglas (JIRA)" <jira@apache.org>
To: core-dev@hadoop.apache.org
Subject: [jira] Updated: (HADOOP-4758) Add a 'tee' for metrics contexts
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     [ https://issues.apache.org/jira/browse/HADOOP-4758?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chris Douglas updated HADOOP-4758:
----------------------------------

    Attachment: 4758-0.patch

The attached patch modifies the utility and factory to separate the context name defining the metric class and the context name for its properties. It also adds a composite context to split output between its subcontexts.

Note that this doesn't support splitting metrics between two contexts with intersecting properties.

> Add a 'tee' for metrics contexts
> --------------------------------
>
>                 Key: HADOOP-4758
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4758
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: metrics
>            Reporter: Chris Douglas
>            Priority: Minor
>             Fix For: 0.20.0
>
>         Attachments: 4758-0.patch
>
>
> It is currently not possible to configure multiple metrics contexts. It would be helpful if one could support more than one type of collector.

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