On Mon, 10 Jul 2017, Gregory Farnum wrote:
> On Mon, Jul 10, 2017 at 12:57 AM Marc Roos <M.Roos@xxxxxxxxxxxxxxxxx> wrote:
>
> I need a little help with fixing some errors I am having.
>
> After upgrading from Kraken im getting incorrect values reported
> on
> placement groups etc. At first I thought it is because I was
> changing
> the public cluster ip address range and modifying the monmap
> directly.
> But after deleting and adding a monitor this ceph daemon dump is
> still
> incorrect.
>
>
>
>
> ceph daemon mon.a perf dump cluster
> {
> "cluster": {
> "num_mon": 3,
> "num_mon_quorum": 3,
> "num_osd": 6,
> "num_osd_up": 6,
> "num_osd_in": 6,
> "osd_epoch": 3842,
> "osd_bytes": 0,
> "osd_bytes_used": 0,
> "osd_bytes_avail": 0,
> "num_pool": 0,
> "num_pg": 0,
> "num_pg_active_clean": 0,
> "num_pg_active": 0,
> "num_pg_peering": 0,
> "num_object": 0,
> "num_object_degraded": 0,
> "num_object_misplaced": 0,
> "num_object_unfound": 0,
> "num_bytes": 0,
> "num_mds_up": 1,
> "num_mds_in": 1,
> "num_mds_failed": 0,
> "mds_epoch": 816
> }
>
> }
>
>
> Huh, I didn't know that existed.
>
> So, yep, most of those values aren't updated any more. From a grep, you can
> still trust:
> num_mon
> num_mon_quorum
> num_osd
> num_osd_up
> num_osd_in
> osd_epoch
> num_mds_up
> num_mds_in
> num_mds_failed
> mds_epoch
>
> We might be able to keep updating the others when we get reports from the
> manager, but it'd be simpler to just rip them out — I don't think the admin
> socket is really the right place to get cluster summary data like this.
> Sage, any thoughts?
These were added to fill a gap when operators are collecting everything
via collectd or similar. Getting the same cluster-level data from
multiple mons is redundant but it avoids having to code up a separate
collector that polls the CLI or something.
I suspect once we're funneling everything through a mgr module this
problem will go away and we can remove this. Until then, these are easy
to fix by populating from PGMapDigest... my vote is we do that!
sage_______________________________________________
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