Re: Legacy BlueStore stats reporting?

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> On 19 Jul 2019, at 15:25, Sage Weil <sage@xxxxxxxxxxxx> wrote:
> 
> On Fri, 19 Jul 2019, Stig Telfer wrote:
>>> On 19 Jul 2019, at 10:01, Konstantin Shalygin <k0ste@xxxxxxxx> wrote:
>>>> Using Ceph-Ansible stable-4.0 I did a rolling update from latest Mimic to Nautilus 14.2.2 on a cluster yesterday, and the update ran to completion successfully.
>>>> 
>>>> However, in ceph status I see a warning of the form "Legacy BlueStore stats reporting detected” for all OSDs in the cluster.
>>>> 
>>>> Can anyone help me with what has gone wrong, and what should be done to fix it?
>>> I thin you should start to run repair for your OSD's - [1]
>>> [1] http://lists.ceph.com/pipermail/ceph-users-ceph.com/2019-July/035889.html <http://lists.ceph.com/pipermail/ceph-users-ceph.com/2019-July/035889.html>
>>> k
>>> 
>> Thanks Konstantin - running the BlueStore repair as indicated appears to 
>> be working.
>> 
>> One difference from Sage’s description of the scenario is that I did not 
>> explicitly create new OSDs during or after the Nautilus upgrade. Perhaps 
>> the Ceph-Ansible rolling update script did something to trigger this.
> 
> The warning is just telling you there are legacy bluestore instances that 
> were created before nautilus.  It is perhaps a bit harsh--you can also 
> just silence the warning if you don't care about getting the newer 
> and more accurate per-pool stats.
> 
> sage

Thanks Sage and Paul for clarifying that - good to know.

Best wishes,
Stig


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