Feature #58129
openmon/FSCommands: support swapping file systems by name
0%
Description
Storage operators like Rook constantly do "reconciliation" to ensure that the desired state of the system (e.g. file system ocs-storageclass-cephfs exists) is reached. If we need to recover a broken file system (cephfs-data-scan) onto a new recovery file system, we need a way to prevent the operator like Rook from recreating the file system while we (1) rename the old damaged file system to something else for later analysis and (2) rename the recovered file system to the old name.
Right now that's not possible without introducing a new API:
ceph fs swap <fs1> <fs2>
It should operate similar to "fs rename" but operate on both file systems in one PAXOS transaction.
Updated by Venky Shankar over 1 year ago
The operation also needs to swap the fsid and no clients should we interfering when the swap is under execution.
Updated by Patrick Donnelly over 1 year ago
Venky Shankar wrote:
The operation also needs to swap the fsid and no clients should we interfering when the swap is under execution.
Hm, that's a good point. I think ceph-csi relies on the fsid.
Updated by Rishabh Dave about 1 year ago
- Status changed from New to In Progress
- Pull request ID set to 50212
Updated by Rishabh Dave about 1 year ago
- Status changed from In Progress to Fix Under Review
Updated by Patrick Donnelly 7 months ago
- Target version changed from v18.0.0 to v19.0.0
Updated by Rishabh Dave 6 months ago
- Status changed from Fix Under Review to Resolved
Updated by Venky Shankar 4 months ago
- Status changed from Resolved to Pending Backport
- Backport changed from quincy,pacific to Quincy,reef
Updated by Venky Shankar 4 months ago
- Backport changed from Quincy,reef to quincy,reef
Updated by Backport Bot 4 months ago
- Copied to Backport #63834: reef: mon/FSCommands: support swapping file systems by name added
Updated by Backport Bot 4 months ago
- Copied to Backport #63835: quincy: mon/FSCommands: support swapping file systems by name added