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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-4698) provide client-side metrics for remote reads, local reads, and short-circuit reads
Date Mon, 15 Apr 2013 18:22:18 GMT
Colin Patrick McCabe created HDFS-4698:
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             Summary: provide client-side metrics for remote reads, local reads, and short-circuit
reads
                 Key: HDFS-4698
                 URL: https://issues.apache.org/jira/browse/HDFS-4698
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: hdfs-client
    Affects Versions: 2.0.3-alpha
            Reporter: Colin Patrick McCabe
            Assignee: Colin Patrick McCabe
            Priority: Minor


We should provide metrics to let clients know how many bytes of data they have read remotely,
versus locally or via short-circuit local reads.  This will allow clients to know how well
they're doing at bringing the computation to the data, which will be useful in evaluating
placement policies and cluster configurations.

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