Thanks Dhairya, what version are you using? I am 16.2.10
[root@alma3-4 ~]# ceph fs dump | grep -i replay
dumped fsmap epoch 90
[mds.alma3-6{0:10340349} state up:standby-replay seq 1 addr [v2:
10.0.24.6:6803/937383171,v1:10.0.24.6:6818/937383171] compat
{c=[1],r=[1],i=[7ff]}]
as you can see i have a MDS in replay mode and standby replay is enabled
but my output is different from yours.
Respectfully,
*Wes Dillingham*
w...@wesdillingham.com
LinkedIn <http://www.linkedin.com/in/wesleydillingham>
On Thu, Oct 20, 2022 at 2:43 PM Dhairya Parmar <dpar...@redhat.com> wrote:
> 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 <w...@wesdillingham.com>
> 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*
>> w...@wesdillingham.com
>> LinkedIn <http://www.linkedin.com/in/wesleydillingham>
>> _______________________________________________
>> ceph-users mailing list -- ceph-users@ceph.io
>> To unsubscribe send an email to ceph-users-le...@ceph.io
>>
>>
>
> --
> *Dhairya Parmar*
>
> He/Him/His
>
> Associate Software Engineer, CephFS
>
> Red Hat Inc. <https://www.redhat.com/>
>
> dpar...@redhat.com
> <https://www.redhat.com/>
>
_______________________________________________
ceph-users mailing list -- ceph-users@ceph.io
To unsubscribe send an email to ceph-users-le...@ceph.io
