Hadoop Common
  1. Hadoop Common
  2. HADOOP-5031

metrics aggregation is incorrect in database

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.21.0
    • Component/s: None
    • Labels:
      None
    • Environment:

      Redhat 5.1, Java 6

    • Hadoop Flags:
      Reviewed

      Description

      A few problem with the aggregation SQL statements:

      hdfs throughput should be calculated by doing two level aggregation:

      First, calculate the rate for hadoop datanode metrics with accumulated vales.
      Second, sum up all datanode rate to provide a single number to represent the current cluster performance.

      Disable hod jobs utilization measurement - The data provide a rough view of the cluster performance but mostly inaccurate.
      Disable user utilization measurement generated from hod job - The data is generated from hod job metrics, and it's mostly inaccurate.

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          People

          • Assignee:
            Eric Yang
            Reporter:
            Eric Yang
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            Watchers:
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            Dates

            • Created:
              Updated:
              Resolved:

              Development