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https://issues.apache.org/jira/browse/CLOUDSTACK-9317?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15825760#comment-15825760
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rashmidixit commented on CLOUDSTACK-9317:
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Github user jayapalu commented on the issue:
https://github.com/apache/cloudstack/pull/1450
@ProjectMoon
Added the new PR https://github.com/apache/cloudstack/pull/1908 for
addressing missing issues in this PR
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> Disabling static NAT on many IPs can leave wrong IPs on the router
> ------------------------------------------------------------------
>
> Key: CLOUDSTACK-9317
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9317
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Management Server, Virtual Router
> Affects Versions: 4.7.0, 4.7.1, 4.7.2
> Reporter: Jeff Hair
>
> The current behavior of enabling or disabling static NAT will call the apply
> IP associations method in the management server. The method is not
> thread-safe. If it's called from multiple threads, each thread will load up
> the list of public IPs in different states (add or revoke)--correct for the
> thread, but not correct overall. Depending on execution order on the virtual
> router, the router can end up with public IPs assigned to it that are not
> supposed to be on it anymore. When another account acquires the same IP, this
> of course leads to network problems.
> The problem has been in CS since at least 4.2, and likely affects all
> recently released versions. Affected version is set to 4.7.x because that's
> what we verified against.
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