Hi Wesley, You can find if the `allow_standby_replay` is turned on or off by looking at the fs dump, run `ceph fs dump | grep allow_standby_replay` and if it is turned on you will find something like: $ ./bin/ceph fs dump | grep allow_standby_replay *** DEVELOPER MODE: setting PATH, PYTHONPATH and LD_LIBRARY_PATH *** 2022-10-21T00:06:14.656+0530 7fbed4fc3640 -1 WARNING: all dangerous and experimental features are enabled. 2022-10-21T00:06:14.663+0530 7fbed4fc3640 -1 WARNING: all dangerous and experimental features are enabled. dumped fsmap epoch 8 flags 32 joinable allow_snaps allow_multimds_snaps *allow_standby_replay* turn it to false and it will be gone: $ ./bin/ceph fs set a allow_standby_replay false *** DEVELOPER MODE: setting PATH, PYTHONPATH and LD_LIBRARY_PATH *** 2022-10-21T00:10:38.668+0530 7f68b66f0640 -1 WARNING: all dangerous and experimental features are enabled. 2022-10-21T00:10:38.675+0530 7f68b66f0640 -1 WARNING: all dangerous and experimental features are enabled. $ ./bin/ceph fs dump | grep allow_standby_replay *** DEVELOPER MODE: setting PATH, PYTHONPATH and LD_LIBRARY_PATH *** 2022-10-21T00:10:43.938+0530 7fe6b3e7a640 -1 WARNING: all dangerous and experimental features are enabled. 2022-10-21T00:10:43.945+0530 7fe6b3e7a640 -1 WARNING: all dangerous and experimental features are enabled. dumped fsmap epoch 15 Hope it helps. On Thu, Oct 20, 2022 at 11:09 PM Wesley Dillingham <wes@xxxxxxxxxxxxxxxxx> wrote: > I am building some automation for version upgrades of MDS and part of the > process I would like to determine if a filesystem has allow_standby_replay > set to true and if so then disable it. Granted I could just issue: "ceph fs > set MyFS allow_standby_replay false" and be done with it but Its got me > curious that there is not the equivalent command: "ceph fs get MyFS > allow_standby_replay" to check this information. So where can an operator > determine this? > > I tried a diff of "ceph fs get MyFS" with this configurable in both true > and false and found: > > diff /tmp/true /tmp/false > 3,4c3,4 > < epoch 66 > < flags 32 > --- > > epoch 67 > > flags 12 > > and Im guessing this information is encoded in the "flags" field. I am > working with 16.2.10. Thanks. > > Respectfully, > > *Wes Dillingham* > wes@xxxxxxxxxxxxxxxxx > LinkedIn <http://www.linkedin.com/in/wesleydillingham> > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx > > -- *Dhairya Parmar* He/Him/His Associate Software Engineer, CephFS Red Hat Inc. <https://www.redhat.com/> dparmar@xxxxxxxxxx <https://www.redhat.com/> _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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