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[Ishant Tyagi <ishant.tyagi@xxxxxx>]

Public bug reported:

nova-compute memory grows to 3gb in a Scaled environment (5000 vm) where
continuous VM operations were executed for 72 hours.

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
22181 nova      20   0 3325m 3.0g 6588 R 34.2 19.0   3984:23 nova-compute


To test the memory leak we created and deleted same number of vms for some iterations. Here is the data .

VM Count	Memory (KB )
0	                 516528
20	                 518520
40	                 518520
60	                 522192
80	                 524068
100	                 526904
0	                 526904
20	                 526904
40	                 526904
60	                 526904
80	                 526904
100	                 529372
0	                 530972
20	                 530972
40	                 530972
60	                 530972
80	                 530972
100	                 533484
0	                 533484
20	                 533484
40	                 533484
60	                 533484
80	                 533484
100	                 535112
0	                 535112


When analysed with objgraph, it showed that suds library objects occupied most of the memory.

** Affects: nova
     Importance: Undecided
         Status: New


** Tags: vmware

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Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/1316433

Title:
  vmware: nova compute memory grows continuously with creation and
  deletions on VMs

Status in OpenStack Compute (Nova):
  New

Bug description:
  nova-compute memory grows to 3gb in a Scaled environment (5000 vm)
  where continuous VM operations were executed for 72 hours.

    PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
  22181 nova      20   0 3325m 3.0g 6588 R 34.2 19.0   3984:23 nova-compute

  
  To test the memory leak we created and deleted same number of vms for some iterations. Here is the data .

  VM Count	Memory (KB )
  0	                 516528
  20	                 518520
  40	                 518520
  60	                 522192
  80	                 524068
  100	                 526904
  0	                 526904
  20	                 526904
  40	                 526904
  60	                 526904
  80	                 526904
  100	                 529372
  0	                 530972
  20	                 530972
  40	                 530972
  60	                 530972
  80	                 530972
  100	                 533484
  0	                 533484
  20	                 533484
  40	                 533484
  60	                 533484
  80	                 533484
  100	                 535112
  0	                 535112

  
  When analysed with objgraph, it showed that suds library objects occupied most of the memory.

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