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  1. Couchbase Server
  2. MB-3994

/pools/default/buckets/default/stats/curr_items?_=... returns 0 for some of the nodes during stat collection

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 1.7.0
    • Fix Version/s: 1.8.0
    • Component/s: ns_server
    • Security Level: Public
    • Labels:
    • Environment:
      1.7 GA

      Description

      this bug manifest itself in the "show by server" page where we display curr_items for all the nodes.
      the screenshot is captured from one of the users

      the curr_items displayed in the UI toggles between 0 and 5 million.

      the api call :
      /pools/default/buckets/default/stats/curr_items?_=1308382785760

      response where value was 0
      {"tstampParam":1308382784595.0,"samplesCount":60,"isPersistent":true,"lastTStamp":1308382785595.0,"interval":1000,"timestamp":[1308382784595.0,1308382785595.0],"nodeStats":{"10.218.59.187:8091":[5390800,5390800],"10.76.58.246:8091":[5325256,5325269],"10.82.6.130:8091":[5306225,5306222],"10.82.21.98:8091":[5269926,0],"10.82.113.154:8091":[5222972,0],"10.82.113.173:8091":[4809062,4809070],"10.102.53.179:8091":[5299763,0],"10.117.26.161:8091":[5278740,5278760],"10.218.3.187:8091":[5289034,5289044],"10.218.37.191:8091":[5238413,5238418]}}

      >>> [5299763,0],"10.117.26.161:8091

      response where value was correct
      {"tstampParam":1308382679595.0,"samplesCount":60,"isPersistent":true,"lastTStamp":1308382680595.0,"interval":1000,"timestamp":[1308382679595.0,1308382680595.0],"nodeStats":{"10.218.59.187:8091":[5390796,5390791],"10.76.58.246:8091":[5325221,5325232],"10.82.6.130:8091":[5306228,5306232],"10.82.21.98:8091":[5269914,5269916],"10.82.113.154:8091":[5222964,5222958],"10.82.113.173:8091":[4809050,4809047],"10.102.53.179:8091":[5299741,5299740],"10.117.26.161:8091":[5278743,5278728],"10.218.3.187:8091":[5289024,5289020],"10.218.37.191:8091":[5238397,5238398]}}

      however if you switch to the "show all stats" for this node page the curr_items graph numbers don't toggle between 0 and 5 million anymore

      it seems that ns_server does not wait long enough for getting stats from all nodes and fill in the value as zero for those nodes.

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        Activity

        Hide
        farshid Farshid Ghods (Inactive) added a comment -

        this is due to tmemcached timing out when its in heavy swap

        Show
        farshid Farshid Ghods (Inactive) added a comment - this is due to tmemcached timing out when its in heavy swap

          People

          • Assignee:
            alkondratenko Aleksey Kondratenko (Inactive)
            Reporter:
            farshid Farshid Ghods (Inactive)
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            Dates

            • Created:
              Updated:
              Resolved:

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