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  1. Couchbase Server
  2. MB-37045

[System Test] : query service (cbq-engine) not responding

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    Description

      Build : 6.5.0-4874
      Test : -test tests/integration/test_allFeatures_madhatter_wo_eventing.yml -scope tests/integration/scope_Xattrs_Madhatter.yml
      Scale : 3
      Duration : Day 2

      In the Madhatter longevity system test, cbq-engine on 172.23.104.148 is not responding.
      Attached :
      1) goroutine dump from 172.23.104.148
      2) active_requests dump from 172.23.104.148 -> 2084 active requests stuck since 17+ hrs
      3) completed requests dump from 172.23.104.148
      4) query CPU profile from 172.23.104.148
      5) query memory profile from 172.23.104.148
      6) cbcollectinfo

      Similar bugs have been filed in the past (MB-36060, MB-35478, MB-35200, MB-33674) and the test has been changed to not only run 8 queries in parallel at any given time. But this is definitely a regression since we havent seen this issue in the system test runs done upto 6.5.0-4821.

      Attachments

        1. goroutine_dump.txt
          5.45 MB
        2. query_active_requests_jq.json
          797 kB
        3. query_active_requests.json
          639 kB
        4. query_completed_requests.json
          1.96 MB
        5. query_cpu_profile.pprof
          104 kB
        6. query.mprof
          36.00 MB
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            mihir.kamdar Mihir Kamdar (Inactive)
            mihir.kamdar Mihir Kamdar (Inactive)
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            Dates

              Created:
              Updated:
              Resolved:

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