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Posted to dev@deltacloud.apache.org by "Ronelle Landy (JIRA)" <ji...@apache.org> on 2012/08/13 16:54:38 UTC
[jira] [Closed] (DTACLOUD-290) Memory leaking on Fedora 17
[ https://issues.apache.org/jira/browse/DTACLOUD-290?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ronelle Landy closed DTACLOUD-290.
----------------------------------
Resolution: Fixed
Closing issue based on Jan's comments above ... changed was pushed to master in commit 5cefcb418e502b70baf016658471ed0d6a2a995d
> Memory leaking on Fedora 17
> ---------------------------
>
> Key: DTACLOUD-290
> URL: https://issues.apache.org/jira/browse/DTACLOUD-290
> Project: DeltaCloud
> Issue Type: Bug
> Components: Server
> Environment: deltacloud-core-1.0.0-4.fc17.noarch (though same issue with dc-core from git)
> sinatra (1.3.2)
> sinatra-rabbit (1.0.6)
> Fedora 17
> Reporter: Jan Provaznik
> Assignee: Michal Fojtik
> Priority: Critical
>
> Memory used by deltacloudd process increases with time. After 12 hours, it's common it uses ~4G of virt memory and >1G of physical memory (only conductor's dbomatic script which periodically checks running instances every minute was running).
> You can reproduce the memory leak by this simple script:
> #!/usr/bin/ruby
> require 'rubygems'
> require 'deltacloud'
> 1000.times do |i| { DeltaCloud.new('mockuser', 'mockpassword', 'http://localhost:3002/api') }
> Used memory will increase by >10M (both virt and physical). The problem is probably with lambda in check_capability usage in lib/deltacloud/collections/* files:
> check_capability :for => lambda { |m| driver.respond_to? m }
> if the lambda is replaced by true or other static value, the memory usage remains constant.
> I see that in git the 'check_capability' call was replaced by 'set' call, this change has no influence on this problem.
> Also it's weird that after starting deltacloudd, used memory is 233m/33m (virt/res), but after first request, used memory jumps to 776m/90m (virt/res) - this is far more than on Fedora 16, where used memory remains around 160m/50m.
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