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  1. Hadoop Common
  2. HADOOP-9420

Add percentile or max metric for rpcQueueTime, processing time

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 2.0.3-alpha
    • 2.3.0
    • ipc, metrics
    • None

    Description

      Currently, we only export averages for rpcQueueTime and rpcProcessingTime. These metrics are most useful when looking at timeouts and slow responses, which in my experience are often caused by momentary spikes in load, which won't show up in averages over the 15+ second time intervals often used by metrics systems. We should collect at least the max queuetime and processing time over each interval, or the percentiles if it's not too expensive.

      Attachments

        1. HADOOP-9420-v2.txt
          8 kB
          Liang Xie
        2. HADOOP-9420.txt
          3 kB
          Liang Xie

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            xieliang007 Liang Xie
            tlipcon Todd Lipcon
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