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  1. Couchbase Server
  2. MB-49382

[CBSE][sigar] Indexer CPU and memory monitoring doesn't work correctly in CPU limited containers

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Details

    • Bug
    • Resolution: Fixed
    • Critical
    • 7.1.0
    • 7.1.0
    • secondary-index, sigar
    • None
    • Untriaged
    • 1
    • Unknown

    Description

      In 7.1 Indexer is adding support for CPU monitoring to adjust mutation processing and scanning if the CPU gets too high. Indexer gets this information from sigar, but sigar returns system information and not container-specific information essentially turning off this capability in CPU-limited containers.

      (
      The related sigar bug IS MB-40464; ns_server: MB-47591; memcached: MB-49632, MB-49867

      This sigar issue is not specific to CPU throttling because GSI uses sigar in other places, including for memory monitoring. Related ns_server CBSEs: CBSE-10794, CBSE-10914, CBSE-10531, CBSE-10845.

      See also MB-36704 on the need to avoid setting GOMAXPROCS to a value higher than the available number of cores (e.g. via UI setting indexer.settings.max_cpu_percent).

      --Kevin Cherkauer
      )

       

       

      Attachments

        Issue Links

          causes

          Bug - A problem which impairs or prevents the functions of the product. MB-51229 Panic: concurrent map read and map write

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MB-47591 Incorrect cgroup resource detection (core/memory) when running in Container / K8S

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MB-49381 Projector memory monitoring doesn't work correctly in memory limited containers

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          links to

          Web Link Respecting container limits

          Activity

            People

              girish.benakappa Girish Benakappa
              dfinlay Dave Finlay
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              Dates

                Created:
                Updated:
                Resolved:

                PagerDuty