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  1. Couchbase Server
  2. MB-56517

Report raw stats instead of computed stats

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    Description

      As seen in MB-56483 ns_server computes "rate" stats using information from sigar as well as elapsed times in ns_server. Because of this the rates may end up "fuzzy" (> 100%). As prometheus provides a rich set of formulas the stats should be reported to prometheus as raw stats instead of computed stats.

       

       

      Issue Resolution
      The Cluster Manager’s computed utilization stats were inaccurate due to time interval discrepancies in components where data was collected. The Cluster Manager now reports raw stats as Prometheus counters.

      Attachments

        1. AWSLinuxOldNewStat.png
          73 kB
          Steve Watanabe
        2. screenshot-1.png
          206 kB
          Steve Watanabe
        3. screenshot-2.png
          71 kB
          Steve Watanabe
        4. Screenshot 2023-07-18 at 12.23.32 PM.png
          323 kB
          Pulkit Matta
        5. Screenshot 2023-07-18 at 12.23.51 PM.png
          275 kB
          Pulkit Matta
        6. Screenshot 2023-07-18 at 12.24.14 PM.png
          464 kB
          Pulkit Matta
        7. WindowsStats.png
          463 kB
          Steve Watanabe

        Issue Links

          backports to

          Improvement - An improvement or enhancement to an existing feature or task. MB-56588 [BP 7.2.x] Report raw stats instead of computed stats

          • Major - Major loss of function.
          • Closed
          is duplicated by

          Improvement - An improvement or enhancement to an existing feature or task. MB-56588 [BP 7.2.x] Report raw stats instead of computed stats

          • Major - Major loss of function.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MB-56634 sysproc_cpu_utilization gauge stat appears incorrect (compared to sysproc_cpu_user+sys counters)

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          For Gerrit Dashboard: MB-56517
          # Subject Branch Project Status CR V
          189842,5 MB-56517 Add stats which are not computed rates master ns_server Status: ABANDONED -2 0
          189995,3 MB-56517 Add descriptions for new stats. master ns_server Status: ABANDONED -2 0
          190122,1 MB-56517 Deprecate computed rate stats master ns_server Status: ABANDONED -2 0
          190142,1 MB-56517 Add stats which are not computed rates neo ns_server Status: ABANDONED 0 0
          190143,2 MB-56517 Add descriptions for new stats. neo ns_server Status: ABANDONED 0 0
          190144,2 MB-56517 Deprecate computed rate stats neo ns_server Status: ABANDONED 0 0
          190336,9 MB-56517 Add stats which are not computed rates neo ns_server Status: MERGED +2 +1
          190337,2 MB-56517 Add descriptions for new stats. neo ns_server Status: ABANDONED 0 0
          191610,2 Merge remote-tracking branch 'couchbase/neo' master ns_server Status: ABANDONED 0 0
          191614,5 Merge remote-tracking branch 'couchbase/neo' master ns_server Status: MERGED +2 +1
          199368,4 MB-59236: [BP] Switch to using sigar_port JSON format neo ns_server Status: ABANDONED 0 0
          199437,3 MB-59236: [BP] Switch to using sigar_port JSON format neo ns_server Status: MERGED +2 +1

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              pulkit.matta Pulkit Matta
              steve.watanabe Steve Watanabe
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              Dates

                Created:
                Updated:
                Resolved:

                PagerDuty