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Posted to issues@hbase.apache.org by "Yu Li (JIRA)" <ji...@apache.org> on 2016/01/25 07:03:39 UTC

[jira] [Created] (HBASE-15160) Put back HFile's HDFS op latency sampling code and add metrics for monitoring

Yu Li created HBASE-15160:
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             Summary: Put back HFile's HDFS op latency sampling code and add metrics for monitoring
                 Key: HBASE-15160
                 URL: https://issues.apache.org/jira/browse/HBASE-15160
             Project: HBase
          Issue Type: Improvement
    Affects Versions: 1.1.2, 2.0.0
            Reporter: Yu Li
            Assignee: Yu Li


In HBASE-11586 all HDFS op latency sampling code, including fsReadLatency, fsPreadLatency and fsWriteLatency, have been removed. There was some discussion about putting them back in a new JIRA but never happened. According to our experience, these metrics are useful to judge whether issue lies on HDFS when slow request occurs, so we propose to put them back in this JIRA, and add the metrics for monitoring as well.



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