Bug 1290667
| Summary: | Files not promoted in the intended cycle are getting promoted in the next cycle(spilling over) | ||||||||||||
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| Product: | [Red Hat Storage] Red Hat Gluster Storage | Reporter: | Nag Pavan Chilakam <nchilaka> | ||||||||||
| Component: | tier | Assignee: | hari gowtham <hgowtham> | ||||||||||
| Status: | CLOSED WONTFIX | QA Contact: | Nag Pavan Chilakam <nchilaka> | ||||||||||
| Severity: | urgent | Docs Contact: | |||||||||||
| Priority: | unspecified | ||||||||||||
| Version: | rhgs-3.1 | CC: | rhs-bugs, sankarshan | ||||||||||
| Target Milestone: | --- | Keywords: | ZStream | ||||||||||
| Target Release: | --- | ||||||||||||
| Hardware: | Unspecified | ||||||||||||
| OS: | Unspecified | ||||||||||||
| Whiteboard: | tier-migration | ||||||||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||||||||
| Doc Text: | Story Points: | --- | |||||||||||
| Clone Of: | Environment: | ||||||||||||
| Last Closed: | 2018-02-06 17:42:55 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: | |||||||||||||
| Attachments: |
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Following was the detailed observation:
1)Checked that no files were heated for some time,and all were in cold tier with hot tier being empty.
2)Now appened one line to 10 files ie bb{1..10}.mp so as to make them promote. Still the binary files in /var/run/gluster/goblin-tier-dht/promotequeryfile-goblin-tier-dht and /var/run/gluster/goblin-tier-dht/demotequeryfile-goblin-tier-dht were empty
3)Now the new cycle started (2min cycle)
4)the promote db file was changed to 4k size with demote being zero size.
File promotions started
5)After two minutes, ie when a new cycle started, only about 8 files had been promoted, with the promote binary still not reset.
=====> BUt what was observed was that on the other node(yarrow), the promote binary was reset and the demote binary was now 4k size <=====
Promotes and demotes were still happening in new cycle.
Attached are the logs
Created attachment 1105515 [details]
node#1 brick logs zod
Created attachment 1105516 [details]
node#2 brick logs yarrow
Created attachment 1105517 [details]
tier cli logs
We need to reset the binary file after every cycle Thank you for your bug report. We are no longer working on any improvements for Tier. This bug will be set to CLOSED WONTFIX to reflect this. Please reopen if the rfe is deemed critical. |
Created attachment 1104568 [details] summerised log is easy qe log which is crisp Description of problem: ====================== I have set watermarks low to 1%(~200MB) and hi as 5%(~1GB) with my hot tier being about 20GB(1x2 hot tier over (4+2)+2 ec vol) With settings remaining same as above,I heated about 10files each of 700MB, and I noticed that over the 2min cycle only about 6 files got promoted(which is accepted), but the next cycle the remaining files start getting promoted, however we should not be allowing this as query should be reset after each cycle(attached are the logs, refer summeraised log to make life easy) Version-Release number of selected component (if applicable): ================ 3.7.5-9