Actions
Bug #10436
closedceph-fuse: snapshot flushing from page cache to Client is not coherent
% Done:
0%
Source:
other
Tags:
Backport:
Regression:
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Component(FS):
Labels (FS):
Pull request ID:
Crash signature (v1):
Crash signature (v2):
Description
fuse kernel module has no understanding of snapshot. It does not flush data when snapshot is created. Besides the fuse kernel modules drop dirty data after snapshotted file is unlinked.
maybe ceph-fuse should ask kernel to flush all dirty data on every snapshots.
Updated by Greg Farnum over 9 years ago
Just to be clear, the problem here is that
1) there is dirty data in the page cache
2) a snapshot happens
3) ceph-fuse tags all its data appropriately for writeback
4) the page cache is flushed into ceph-fuse
50 ceph-fuse sees this is a post-snapshot write
Updated by Greg Farnum over 8 years ago
- Subject changed from ceph-fuse: snaptest-snap-rm-cmp.sh fails occasional to ceph-fuse: snapshot flushing from page cache to Client is not coherent
- Description updated (diff)
Once this is fixed we need to re-enable snaptest-snap-rm-cmp.sh in the snaptests.yaml qa-suite config fragment.
Updated by Zheng Yan about 8 years ago
- Status changed from In Progress to Fix Under Review
Updated by Greg Farnum about 8 years ago
- Status changed from Fix Under Review to Resolved
Actions