| Summary: | Swap observed due to puma on UI appliances, causing unresponsive UI | ||||||
|---|---|---|---|---|---|---|---|
| Product: | Red Hat CloudForms Management Engine | Reporter: | Jerome Marc <jmarc> | ||||
| Component: | Performance | Assignee: | Nick LaMuro <nlamuro> | ||||
| Status: | CLOSED WONTFIX | QA Contact: | Pradeep Kumar Surisetty <psuriset> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | high | ||||||
| Version: | 5.6.0 | CC: | arcsharm, cpelland, dajohnso, dmetzger, gjansen, hroy, jhardy, jmarc, kmorey, nlamuro, nstephan, obarenbo | ||||
| Target Milestone: | GA | Flags: | nlamuro:
needinfo?
(dajohnso) |
||||
| Target Release: | cfme-future | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | perf:ui | ||||||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2018-01-08 13:30:08 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | CFME Core | Target Upstream Version: | |||||
| Attachments: |
|
||||||
Same issue experienced in 5.7. Closing this 5.6 ticket based on the work / investigation completed to the point. If the problem is found reproducible in a more current release a new ticket should be created. My understanding at this time is there have been problems reproducing this reliably on 5.6 and it has not be reported on newer releases. |
Created attachment 1204244 [details] Troubleshooting results for free, smem, smem -W and vmstat commands Description of problem: UI appliances become very slow after some time on the MBU Lab. Looking at the UI appliances, we observe memory swap happening, specifically due to puma. Restarting the appliance is the only fix. Version-Release number of selected component (if applicable): 5.6.1.2.20160810181333_8ba817b How reproducible: Always Steps to Reproduce: 1. Have CloudForms setup in a Production environment (e.g. 2 UI appliances, 1 BD master, 9 worker appliances) 2. Give access to users and let them use CloudForms Actual results: Over time, swap will start occurring on the UI appliance. Analysis seems to point at Puma (see command results attached). Expected results: Swap should not happen. These appliances are 8GB RAM, with 4 UI workers each. Additional info: Happy to share the environment credentials for further troubleshooting.