Bug 1819103
| Summary: | openshift-apiserver pod has lots of spam logs "E0331...etcdserver: mvcc: required revision has been compacted" | ||
|---|---|---|---|
| Product: | OpenShift Container Platform | Reporter: | Xingxing Xia <xxia> | 
| Component: | openshift-apiserver | Assignee: | Stefan Schimanski <sttts> | 
| Status: | CLOSED ERRATA | QA Contact: | Xingxing Xia <xxia> | 
| Severity: | medium | Docs Contact: | |
| Priority: | high | ||
| Version: | 4.4 | CC: | akashem, aos-bugs, ingvarr.zhmakin, mfojtik, mnewby | 
| Target Milestone: | --- | ||
| Target Release: | 4.5.0 | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | No Doc Update | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-07-13 17:24:11 UTC | Type: | Bug | 
| Regression: | --- | Mount Type: | --- | 
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
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          Description
        
        
          Xingxing Xia
        
        
        
        
        
          2020-03-31 08:26:07 UTC
        
       
      
      
      
    afaik `mvcc: required revision has been compacted` is a healthy message. Why does it need to be emitted as an error though? The frequency is also concerning. We agree, it should be fixed, setting the target release to 4.5. The expectation is: - This is a healthy message, so we might need to find a way to make it less frequent. - This should not be labeled as an error message. Reduced to warning in https://github.com/kubernetes/kubernetes/pull/84602 with 1.18 rebase. Verified in 4.5.0-0.nightly-2020-05-11-032504. Now OAS log shows it as Warning. $ oc logs -n openshift-apiserver apiserver-79d4f8fd98-9j5bj ... W0511 07:02:16.669394 1 watcher.go:199] watch chan error: etcdserver: mvcc: required revision has been compacted W0511 07:02:16.762114 1 watcher.go:199] watch chan error: etcdserver: mvcc: required revision has been compacted ... W0511 07:11:27.759756 1 watcher.go:199] watch chan error: etcdserver: mvcc: required revision has been compacted W0511 07:11:36.676603 1 watcher.go:199] watch chan error: etcdserver: mvcc: required revision has been compacted ... Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2020:2409  |