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Bug #46074

mds: provide altrenatives to increase the total cephfs subvolume snapshot counts to greater than the current 400 across a Cephfs volume

Added by Shyamsundar Ranganathan 21 days ago. Updated 17 days ago.

Status:
Triaged
Priority:
Urgent
Assignee:
Category:
Administration/Usability
Target version:
% Done:

0%

Source:
Development
Tags:
Backport:
octopus,nautilus
Regression:
No
Severity:
2 - major
Reviewed:
Affected Versions:
ceph-qa-suite:
Component(FS):
MDS
Labels (FS):
snapshots
Pull request ID:
Crash signature:

Description

Issue is originally discussed here: https://github.com/ceph/ceph-csi/issues/1133

This bug is filed to provide discussed alternatives as in the issue above, specifically,

"For cephfs volume, we only create snapshots at volume root. we can disable the special handling for inodes with multiple links. If the special handling is disabled, that can help avoiding the 400 snapshot per-file-system limit"

For subvolumes, the intention is that these are used in isolation with each other, and hence hard links across subvolumes should not be a concern. Given this, the handling as discussed above can be relaxed for subvolumes.

History

#1 Updated by Patrick Donnelly 21 days ago

  • Subject changed from Provide altrenatives to increase the total cephfs subvolume snapshot counts to greater than the current 400 across a Cephfs volume to mds: provide altrenatives to increase the total cephfs subvolume snapshot counts to greater than the current 400 across a Cephfs volume
  • Priority changed from Normal to Urgent
  • Target version set to v16.0.0

#2 Updated by Patrick Donnelly 17 days ago

  • Status changed from New to Triaged
  • Assignee set to Zheng Yan

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