maintenance in mongos workload

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    • Service Arch
    • Service Arch 2018-10-08, Service Arch 2018-10-22, Service Arch 2018-11-05, Service Arch 2018-11-19, Service Arch 2018-12-03
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      What happens when we bounce / bring on a new mongos

      Test:

      • Set up a 1 shard cluster
      • Set up a workload of N sleeps per second via a mongos
        • Stage these out so that the workload practically requires M connections to execute (due to the sleeps)
      • Measure steady state perf
      • Try stuff:
        • Set up a second mongos
          • Point an equivalent workload against it
        • Bounce the mongos
          • Time to reversion to mean
      • Variants:
        • Is it worse if there is a very large routing table
          • Many shards
          • Many chunks

              Assignee:
              [DO NOT USE] Backlog - Service Architecture
              Reporter:
              Mira Carey
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                Created:
                Updated:
                Resolved: