Bug 1892474
| Summary: | [RFE] [RADOS - Stretch Cluster] - Allow moving back to normal mode from stretch cluster mode. | ||
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| Product: | [Red Hat Storage] Red Hat Ceph Storage | Reporter: | Manohar Murthy <mmurthy> |
| Component: | RADOS | Assignee: | Kamoltat (Junior) Sirivadhna <ksirivad> |
| Status: | CLOSED ERRATA | QA Contact: | Vipin M S <vips> |
| Severity: | high | Docs Contact: | Rivka Pollack <rpollack> |
| Priority: | unspecified | ||
| Version: | 4.2 | CC: | akupczyk, bhubbard, ceph-eng-bugs, gfarnum, jcaratza, ksirivad, ngangadh, nojha, pdhiran, rpollack, rzarzyns, sseshasa, support, vereddy, vumrao |
| Target Milestone: | --- | Keywords: | FutureFeature |
| Target Release: | 9.0 | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | ceph-20.1.0-63 | Doc Type: | Enhancement |
| Doc Text: |
.Enhanced support for moving stretch mode to normal mode
Previously, Ceph clusters operating in stretch mode could not be reverted to normal mode without manual intervention.
With this enhancement, Ceph introduces a command that allows users to gracefully exit stretch mode.
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ceph mon disable_stretch_mode <crush_rule> --yes-i-really-mean-it
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Users may optionally specify a CRUSH rule to which all pools should be migrated. If no rule is provided, Ceph automatically selects a default replicated CRUSH rule.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2026-01-29 06:46:40 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: | |||
| Bug Depends On: | |||
| Bug Blocks: | 2388233 | ||
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Comment 1
Yaniv Kaul
2020-10-29 07:09:34 UTC
It just seems reasonable that we be able to turn off a feature which has such wide-ranging impacts. This should be easy to implement given the architecture but it's getting pushed down my list by requests from Rook that are turning up now we're actually trying to integrate it into their way of life. This is (to the best of my knowledge) and OCS requested feature - they are not going to go back. Deferring to 5.1, at least. Note to downstream, there is an upstream too ;-), see this tracker: https://tracker.ceph.com/issues/64840 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 (Moderate: Red Hat Ceph Storage 9.0 Security and Enhancement 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/RHSA-2026:1536 |