On 01/03/2016 18:14, John Spray wrote:
>> And what is the meaning of the first and the second number below?
>>
>> mdsmap e21038: 1/1/0 up {0=HK-IDC1-10-1-72-160=up:active}
>> ^ ^
>
> Your whitespace got lost here I think, but I guess you're talking
> about the 1/1 part.
Yes indeed.
> The shorthand MDS status is up/in/max_mds
> (https://github.com/ceph/ceph/blob/master/src/mds/MDSMap.cc#L248)
>
> up: how many daemons are up and holding a rank (they may be active or
> replaying, etc)
> in: how many ranks exist in the MDS cluster
> max_mds: if there are this many MDSs already, new daemons will be made
> standbys instead of having ranks created for them.
>
> On single-active-daemon systems, this is really just going to be 1/1/1
> or 0/1/1 for whether you have an up MDS or not.
Ok thx John for the explanations.
--
François Lafont
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