Github user dmabry commented on the issue: https://github.com/apache/cloudstack/pull/1915 @ustcweizhou Thanks for taking the time to test as well. I confirm in our testing over the weekend that we were able to consistently create/destroy/expunge VMs every 2 minutes without issue. Before the PR https://github.com/apache/cloudstack/pull/1954 and this PR, we were having the VPC VR fall over ~8 hours into the test. In summary, this PR with the one I submitted this morning solved our issues. Thanks again for the help.
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