Hi Wesley,
It's 17.0.0-14319-ga686eb80799 (a686eb80799dc503a45002f4b9181f4573e8e0b3)
quincy (dev)
On Fri, Oct 21, 2022 at 3:29 AM Wesley Dillingham <wes@xxxxxxxxxxxxxxxxx>
wrote:
> 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*
> wes@xxxxxxxxxxxxxxxxx
> LinkedIn <http://www.linkedin.com/in/wesleydillingham>
>
>
> On Thu, Oct 20, 2022 at 2:43 PM Dhairya Parmar <dparmar@xxxxxxxxxx> 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 <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/>
>>
>
--
*Dhairya Parmar*
He/Him/His
Associate Software Engineer, CephFS
Red Hat Inc. <https://www.redhat.com/>
dparmar@xxxxxxxxxx
<https://www.redhat.com/>
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