Github user insom commented on the issue: https://github.com/apache/cloudstack/pull/1451 @ustcweizhou A _side effect_ of this PR is setting the minimal timeout to 120, but that's what the original code intended - except that because of not passing through the timeout to `applyConfigToVR` it wasn't taking effect. What this PR really does is make the code work as intended. I'm up for improvements but if this is blocking upgrades (and at least iWeb and one other CloudStack user were hit by it) seems like merging this and _then_ moving it to a per-host setting would be a good idea?
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