joseflauzino opened a new pull request #5633:
URL: https://github.com/apache/cloudstack/pull/5633
### Description
This PR fixes the behavior of the stats collector with respect to VMs that
are not running. The need for this is that if a running VM has a state change
for some reason, ACS keeps showing the latest metrics stats collected.
### Types of changes
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] New feature (non-breaking change which adds functionality)
- [x] Bug fix (non-breaking change which fixes an issue)
- [ ] Enhancement (improves an existing feature and functionality)
- [ ] Cleanup (Code refactoring and cleanup, that may add test cases)
### Feature/Enhancement Scale or Bug Severity
#### Feature/Enhancement Scale
- [ ] Major
- [x] Minor
#### Bug Severity
- [ ] BLOCKER
- [ ] Critical
- [ ] Major
- [x] Minor
- [ ] Trivial
### How Has This Been Tested?
Using ACS UI, I performed the following steps:
- I deployed a VM and waited for the complete boot;
- I enabled the presentation of metric statistics in the UI;
- I waited for ACS to collect and show metrics stats;
- And then, I tested two different cases:
- Case 1 - I stopped VM using ACS UI;
- Case 2 - I simulated a VM crash by manually stopping it (directly
from the hypervisor);
- In both cases, the metrics stats for the VM were successfully cleared. As
expected, when I tested Case 1, cleanup was done immediately. In Case 2, I had
to wait for ACS to identify that the VM was stopped and the stats collector try
to collect new metric stats.
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