Bug 1718135
| Summary: | Multiple MDS crashing with assert(mds->sessionmap.get_version() == cmapv) in ESessions::replay while replaying journal | ||
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| Product: | [Red Hat Storage] Red Hat Ceph Storage | Reporter: | Prashant Dhange <pdhange> |
| Component: | CephFS | Assignee: | Yan, Zheng <zyan> |
| Status: | CLOSED ERRATA | QA Contact: | subhash <vpoliset> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 3.1 | CC: | ceph-eng-bugs, ceph-qe-bugs, edonnell, gsitlani, pdonnell, sweil, tchandra, tserlin, vumrao, zyan |
| Target Milestone: | rc | Keywords: | Reopened |
| Target Release: | 3.3 | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | RHEL: ceph-12.2.12-18.el7cp Ubuntu: ceph_12.2.12-16redhat1xenial | Doc Type: | Bug Fix |
| Doc Text: |
.Partially flushed `ESessions` log event no longer cause the MDS to fail
Previously, when a Ceph Metadata Server (MDS) had more than 1024 client sessions, sessions in the `ESessions` log event could get flushed partially. The journal replay code expects sessions in the `ESessions` log event to either be all flushed or not flushed at all, so this would cause the MDS to fail. With this update, the journal replay code can handle a partially flushed `ESessions` log event.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-08-21 15:11:09 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: | 1726135 | ||
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Comment 18
Yan, Zheng
2019-06-08 13:34:18 UTC
(In reply to Yan, Zheng from comment #18) > I was wrong. The issue was not caused by commit 8048865b "mds: properly > dirty sessions opened by journal replay". It should be caused by > https://tracker.ceph.com/issues/40211 Reopening as per comment#18. luminous backport is at https://github.com/ceph/ceph/pull/28536 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/RHSA-2019:2538 |