Re: logging of cluster status (Jewel vs Luminous and later)

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Quoting Matthew Vernon (mv3@xxxxxxxxxxxx):
> Hi,
> 
> On our Jewel clusters, the mons keep a log of the cluster status e.g.
> 
> 2019-01-24 14:00:00.028457 7f7a17bef700  0 log_channel(cluster) log [INF] :
> HEALTH_OK
> 2019-01-24 14:00:00.646719 7f7a46423700  0 log_channel(cluster) log [INF] :
> pgmap v66631404: 173696 pgs: 10 active+clean+scrubbing+deep, 173686
> active+clean; 2271 TB data, 6819 TB used, 9875 TB / 16695 TB avail; 1313
> MB/s rd, 236 MB/s wr, 12921 op/s
> 
> This is sometimes useful after a problem, to see when thing started going
> wrong (which can be helpful for incident response and analysis) and so on.
> There doesn't appear to be any such logging in Luminous, either by mons or
> mgrs. What am I missing?

Our mons keep a log in /var/log/ceph/ceph.log (running luminous 12.2.8).
Is that log present on your systems?

Gr. Stefan

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