[jira] [Created] (HADOOP-14307) GraphiteSink can specify which tags to export into the metrics prefix

["Damien Claveau (JIRA)" <ji...@apache.org>]

Damien Claveau created HADOOP-14307:
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             Summary: GraphiteSink can specify which tags to export into the metrics prefix
                 Key: HADOOP-14307
                 URL: https://issues.apache.org/jira/browse/HADOOP-14307
             Project: Hadoop Common
          Issue Type: Improvement
          Components: metrics
    Affects Versions: 2.7.3, 2.7.2, 2.7.1, 2.7.0
            Reporter: Damien Claveau
            Assignee: Damien Claveau
            Priority: Minor
             Fix For: 2.7.3, 2.7.2, 2.7.1, 2.7.0


This Jira is a feature proposal to add the ability in GraphiteSink to specify which Tag (Name/Value) pairs are to be flattened in the metric prefix.

The motivation for this is that currently, all the tags are included in the prefix like this : graphite_prefix.Context=$context.Process=$process.Tag1=$value1.Tag2=$value2..Tag9=$value9.metric

This requires a bunch of rewriting rules (and complex regexp) in the metric aggregation servers (carbon-relay, carbon-aggregator, ...) .

The feature would be exactly the same as the solution implemented in the GangliaSink : https://issues.apache.org/jira/browse/HADOOP-7507
See also the commit : https://github.com/apache/hadoop/commit/2ca9c8d926a8eeb871b2868e6eb4dfb97d7dc63d





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