Bug 2093106
| Summary: | [RHCS 6] dups.size logging + COT dups trim command + online dups trimming fix | ||
|---|---|---|---|
| Product: | [Red Hat Storage] Red Hat Ceph Storage | Reporter: | Vikhyat Umrao <vumrao> |
| Component: | RADOS | Assignee: | Radoslaw Zarzynski <rzarzyns> |
| Status: | CLOSED ERRATA | QA Contact: | Pawan <pdhiran> |
| Severity: | high | Docs Contact: | Eliska <ekristov> |
| Priority: | unspecified | ||
| Version: | 5.0 | CC: | akupczyk, amathuri, bhubbard, ceph-eng-bugs, choffman, ekristov, ksirivad, lflores, nmordech, nojha, pdhange, pdhiran, rfriedma, rzarzyns, sseshasa, tserlin, vereddy, vumrao |
| Target Milestone: | --- | ||
| Target Release: | 6.0 | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | ceph-17.2.3-23.el9cp | Doc Type: | Bug Fix |
| Doc Text: |
.Corrupted dups entries of a PG Log can be removed by off-line and on-line trimming
Previously, trimming of PG log dups entries could be prevented during the low-level PG split operation, which is used by the PG autoscaler with far higher frequency than by a human operator. Stalling the trimming of dups resulted in significant memory growth of PG log, leading to OSD crashes as it ran out of memory. Restarting an OSD did not solve the problem as the PG log is stored on disk and reloaded to RAM on startup.
With this fix, both off-line, using the `ceph-objectstore-tool` command, and on-line, within OSD, trimming can remove corrupted dups entries of a PG log that jammed the on-line trimming machinery and were responsible for the memory growth. A debug improvement is implemented that prints the number of dups entries to the OSD's log to help future investigations.
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Story Points: | --- |
| Clone Of: | 2093031 | Environment: | |
| Last Closed: | 2023-03-20 18:56:39 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 2126050 | ||
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Comment 1
Vikhyat Umrao
2022-06-02 23:01:27 UTC
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 (Red Hat Ceph Storage 6.0 Bug Fix update), 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-2023:1360 |