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Feature #26974

mds: provide mechanism to allow new instance of an application to cancel old MDS session

Added by Jeff Layton 4 months ago. Updated 2 months ago.

Status:
Resolved
Priority:
Normal
Assignee:
Category:
-
Target version:
Start date:
08/21/2018
Due date:
% Done:

0%

Source:
Development
Tags:
Backport:
Reviewed:
Affected Versions:
Component(FS):
Client, MDS, libcephfs
Labels (FS):
Pull request ID:

Description

This is a subset of the overall project to provide a way for client applications to reclaim state held by a previous instance of themselves. The initial phase of this project is to just allow a client application to cancel the MDS session held by a previous instance of itself.

The use case for this is NFS ganesha (and probably, eventually, Samba) which needs to have a way to kill off an old session in order to provide better failover response times. The pull request for this is here:

https://github.com/ceph/ceph/pull/20538


Related issues

Related to fs - Bug #36394: mds: pending release note for state reclaim Resolved 10/11/2018
Related to fs - Bug #36396: mds: handle duplicated uuid in multi-mds cluster New 10/11/2018
Related to fs - Bug #36395: mds: Documentation for the reclaim mechanism Resolved 10/11/2018
Related to fs - Feature #36397: mds: support real state reclaim New 10/11/2018

History

#1 Updated by Patrick Donnelly 4 months ago

  • Subject changed from provide mechanism to allow new instance of an application to cancel old MDS session to mds: provide mechanism to allow new instance of an application to cancel old MDS session
  • Status changed from New to Need Review
  • Target version set to v14.0.0
  • Source set to Development
  • Component(FS) Client added

#3 Updated by Zheng Yan 2 months ago

  • Status changed from Need Review to Resolved

#4 Updated by Zheng Yan 2 months ago

  • Related to Bug #36394: mds: pending release note for state reclaim added

#5 Updated by Zheng Yan 2 months ago

  • Related to Bug #36396: mds: handle duplicated uuid in multi-mds cluster added

#6 Updated by Zheng Yan 2 months ago

  • Related to Bug #36395: mds: Documentation for the reclaim mechanism added

#7 Updated by Zheng Yan 2 months ago

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