Github user koushik-das commented on the pull request:
https://github.com/apache/cloudstack/pull/656#issuecomment-129300344
@remibergsma Thanks for testing the PR. This is a best-effort fix. The
change just schedules the restart of the system VMs ahead of the user VMs. Now
if there are fewer VMs for restart, there is a higher probability of all
restart jobs getting executed at the same time by the HA-worker thread pool. In
this case the fix won't be effective. If there are more VMs then the
effectiveness of the fix increases.
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