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  1. Couchbase Server
  2. MB-59191

Shard Rebalance : No significant performance gain with 1000 index plasma dgm

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    Description

      Test 6: 100M, 1000 index
      20%RR DGM
           
      Rebalance in (1 -> 2)   Shard Rebalance DCP rebalance
        Rebalance time 11.7 min 17.2 min
        Throughput 184471.5 189569.7
        Latency 90th .99 ms .97 ms
        Latency 95th 1.32 ms 1.28 ms
        Run https://perf.jenkins.couchbase.com/job/aether/3296/consoleFull https://perf.jenkins.couchbase.com/job/aether/3295/consoleFull
        Cbmonitor http://cbmonitor.sc.couchbase.com/reports/html/?snapshot=aether_760-1656_rebalance_c356 http://cbmonitor.sc.couchbase.com/reports/html/?snapshot=aether_760-1656_rebalance_f9e6
        DGM % changes from to 16% -> 4% 10% -> 15%
      Rebalance out(2 -> 1)      
      7.6.0-1656 Rebalance time 25.7 min 42 min
        Throughput 180228.1 170323.2
        Latency 90th 1.06 ms 1.27 ms
        Latency 95th 1.43 ms 1.87 ms
        Run https://perf.jenkins.couchbase.com/job/aether/3301/consoleFull https://perf.jenkins.couchbase.com/job/aether/3300/consoleFull
        Cbmonitor http://cbmonitor.sc.couchbase.com/reports/html/?snapshot=aether_760-1656_rebalance_4917 http://cbmonitor.sc.couchbase.com/reports/html/?snapshot=aether_760-1656_rebalance_cc91
        DGM % changes from to 51% -> 2 57% -> 4%
      Rebalance swap(1->1) initally 2 index nodes      
      7.6.0-1656 Rebalance time 19.8 min 19.6 min
        Throughput 234335.2 228611.3
        Latency 90th .75 ms .76 ms
        Latency 95th .88 ms .9 ms
        Run https://perf.jenkins.couchbase.com/job/aether/3302/consoleFull https://perf.jenkins.couchbase.com/job/aether/3293/consoleFull
        Cbmonitor http://cbmonitor.sc.couchbase.com/reports/html/?snapshot=aether_760-1656_rebalance_976d http://cbmonitor.sc.couchbase.com/reports/html/?snapshot=aether_760-1656_rebalance_6323
        DGM % changes from to 25% -> 15% 55% -> 26%

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            vikas.chaudhary Vikas Chaudhary
            vikas.chaudhary Vikas Chaudhary
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