Comment 5 for bug 1454661

A quick fix would be very welcome, our mongodb instance is spending quite some time in this collection :

2017-04-06T07:52:41.671+0000 connected to: 127.0.0.1:37017

                      ns total read write 2017-04-06T08:02:41Z
          local.oplog.rs 704910ms 84191ms 620719ms
    juju.statuseshistory 296379ms 15636ms 280742ms
               juju.txns 278067ms 182099ms 95967ms
presence.presence.beings 184857ms 184857ms 0ms
           juju.txns.log 125199ms 83496ms 41703ms
             juju.leases 85285ms 36969ms 48316ms
 presence.presence.pings 71197ms 5527ms 65669ms
        juju.controllers 42361ms 42351ms 9ms
           juju.statuses 38212ms 29837ms 8374ms
              juju.units 35639ms 35639ms 0ms

                      ns total read write 2017-04-06T08:12:41Z
          local.oplog.rs 610708ms 82364ms 528344ms
               juju.txns 247024ms 165533ms 81491ms
    juju.statuseshistory 240834ms 14157ms 226676ms
presence.presence.beings 186170ms 186170ms 0ms
           juju.txns.log 95149ms 78652ms 16496ms
             juju.leases 79514ms 35188ms 44325ms
           juju.statuses 32915ms 24744ms 8170ms
 presence.presence.pings 24804ms 5203ms 19600ms
        juju.controllers 21349ms 21340ms 8ms
              juju.units 21204ms 21204ms 0ms

                      ns total read write 2017-04-06T08:22:41Z
          local.oplog.rs 703049ms 81894ms 621154ms
               juju.txns 213787ms 142622ms 71165ms
presence.presence.beings 163508ms 163508ms 0ms
    juju.statuseshistory 144047ms 14350ms 129697ms
           juju.txns.log 89178ms 75184ms 13994ms
             juju.leases 67510ms 30105ms 37404ms
 presence.presence.pings 29974ms 5673ms 24300ms
           juju.statuses 26888ms 19873ms 7015ms
        juju.controllers 24915ms 24907ms 7ms
              juju.units 18825ms 18825ms 0ms

                      ns total read write 2017-04-06T08:32:41Z
          local.oplog.rs 703089ms 80166ms 622923ms
    juju.statuseshistory 226335ms 14032ms 212303ms
               juju.txns 214288ms 143298ms 70990ms
presence.presence.beings 177443ms 177443ms 0ms
           juju.txns.log 77372ms 62639ms 14733ms
             juju.leases 67495ms 29279ms 38216ms
 presence.presence.pings 31970ms 4715ms 27255ms
           juju.statuses 28714ms 21385ms 7329ms
              juju.units 20472ms 20472ms 0ms
           juju.machines 14753ms 14753ms 0ms

                      ns total read write 2017-04-06T08:42:41Z
           juju.txns.log 1487690ms 1445774ms 41916ms
               juju.txns 995310ms 402524ms 592786ms
          local.oplog.rs 768988ms 139397ms 629590ms
    juju.statuseshistory 712300ms 106260ms 606040ms
 presence.presence.pings 602462ms 65266ms 537196ms
             juju.leases 347098ms 233241ms 113857ms
              juju.units 241976ms 241967ms 9ms
presence.presence.beings 229743ms 229743ms 0ms
        juju.controllers 179084ms 179078ms 5ms
           juju.settings 164697ms 164696ms 0ms

                      ns total read write 2017-04-06T08:52:41Z
          local.oplog.rs 665806ms 88911ms 576894ms
               juju.txns 307813ms 163275ms 144537ms
presence.presence.beings 187853ms 187853ms 0ms
    juju.statuseshistory 89307ms 14529ms 74777ms
           juju.txns.log 86350ms 72369ms 13981ms
             juju.leases 80096ms 35760ms 44335ms
           juju.statuses 34756ms 25931ms 8824ms
              juju.units 23705ms 23705ms 0ms
 presence.presence.pings 22749ms 5022ms 17726ms
        juju.controllers 22134ms 22127ms 7ms

                      ns total read write 2017-04-06T09:02:42Z
          local.oplog.rs 618498ms 83238ms 535260ms
               juju.txns 284128ms 197279ms 86848ms
presence.presence.beings 192380ms 192380ms 0ms
    juju.statuseshistory 183222ms 17699ms 165522ms
           juju.txns.log 121857ms 105478ms 16378ms
             juju.leases 88678ms 38293ms 50385ms
        juju.controllers 46271ms 46267ms 4ms
           juju.statuses 37773ms 27654ms 10118ms
              juju.units 29691ms 29691ms 0ms
           juju.settings 25959ms 25959ms 0ms

                      ns total read write 2017-04-06T09:12:42Z
          local.oplog.rs 696819ms 78536ms 618282ms
    juju.statuseshistory 337073ms 9269ms 327803ms
               juju.txns 216021ms 146568ms 69452ms
presence.presence.beings 150061ms 150061ms 0ms
           juju.txns.log 73589ms 60163ms 13426ms
             juju.leases 64648ms 29468ms 35180ms
        juju.controllers 47508ms 47501ms 7ms
           juju.statuses 26777ms 19926ms 6851ms
           juju.settings 25899ms 25899ms 0ms
 presence.presence.pings 22726ms 4999ms 17727ms

                      ns total read write 2017-04-06T09:22:42Z
          local.oplog.rs 703981ms 83815ms 620165ms
               juju.txns 259489ms 176168ms 83321ms
presence.presence.beings 193365ms 193365ms 0ms
    juju.statuseshistory 159843ms 13116ms 146727ms
           juju.txns.log 90101ms 74576ms 15524ms
             juju.leases 83072ms 35434ms 47637ms
           juju.statuses 35011ms 26356ms 8654ms
              juju.units 26194ms 26194ms 0ms
 presence.presence.pings 23756ms 5406ms 18350ms
           juju.machines 17608ms 17608ms 0ms

                      ns total read write 2017-04-06T09:32:42Z
          local.oplog.rs 704621ms 81304ms 623317ms
               juju.txns 223322ms 150793ms 72529ms
presence.presence.beings 174604ms 174604ms 0ms
    juju.statuseshistory 167854ms 17135ms 150718ms
           juju.txns.log 77098ms 62831ms 14267ms
             juju.leases 73166ms 31525ms 41640ms
           juju.statuses 29035ms 21773ms 7262ms
 presence.presence.pings 26041ms 4897ms 21144ms
              juju.units 21081ms 21081ms 0ms
        juju.controllers 19123ms 19119ms 3ms