On Wed, Feb 1, 2017 at 1:51 AM, Joao Eduardo Luis <joao@xxxxxxx> wrote:
> On 01/31/2017 03:35 PM, David Turner wrote:
>>
>> If you do have a large enough drive on all of your mons (and always
>> intend to do so) you can increase the mon store warning threshold in the
>> config file so that it no longer warns at 15360 MB.
>
>
> And if you so decide to go that route, please be aware that the monitors are
> known to misbehave if their store grows too much.
Would you please elaborate on what *misbehave* means? Do you have any
pointers to tell us more specifically?
>
> Those warnings have been put in place to let the admin know that action may
> be needed, hopefully in time to avoid abhorrent behaviour.
>
> -Joao
>
>
>> From: ceph-users [ceph-users-bounces@xxxxxxxxxxxxxx] on behalf of Wido
>> den Hollander [wido@xxxxxxxx]
>> Sent: Tuesday, January 31, 2017 2:35 AM
>> To: Martin Palma; CEPH list
>> Subject: Re: mon.mon01 store is getting too big! 18119 MB
>>>
>>> = 15360 MB -- 94% avail
>>
>>
>>> Op 31 januari 2017 om 10:22 schreef Martin Palma <martin@xxxxxxxx>:
>>>
>>>
>>> Hi all,
>>>
>>> our cluster is currently performing a big expansion and is in recovery
>>> mode (we doubled in size and osd# from 600 TB to 1,2 TB).
>>>
>>
>> Yes, that is to be expected. When not all PGs are active+clean the MONs
>> will not trim their datastore.
>>
>>> Now we get the following message from our monitor nodes:
>>>
>>> mon.mon01 store is getting too big! 18119 MB >= 15360 MB -- 94% avail
>>>
>>> Reading [0] it says that it is normal in a state of active data
>>> rebalance and after it is finished it will be compacted.
>>>
>>> Should we wait until the recovery is finished or should we perform
>>> "ceph tell mon.{id} compact" now during recovery?
>>>
>>
>> Mainly wait and make sure there is enough disk space. You can try a
>> compact, but that can take the mon offline temp.
>>
>> Just make sure you have enough diskspace :)
>>
>> Wido
>>
>>> Best,
>>> Martin
>>>
>>> [0] https://access.redhat.com/solutions/1982273
>>> _______________________________________________
>>> ceph-users mailing list
>>> ceph-users@xxxxxxxxxxxxxx
>>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
>>
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>
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