Re: Ceph MDS daemonperf

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On Fri, May 12, 2017 at 12:47 PM, Webert de Souza Lima
<webert.boss@xxxxxxxxx> wrote:
> Thanks John,
>
> I did as yuo suggested but unfortunately I only found information regarding
> the objecter nicks "writ, read and actv", any more suggestions?

The daemonperf command itself is getting its list of things to display
by calling "perf schema" and looking at which ones have a nick set, so
they're definitely in there.  Maybe you were sending the command to
something other than an active MDS?

John

>
>
> Regards,
>
> Webert Lima
> DevOps Engineer at MAV Tecnologia
> Belo Horizonte - Brasil
>
> On Wed, May 10, 2017 at 3:46 AM, John Spray <jspray@xxxxxxxxxx> wrote:
>>
>> On Tue, May 9, 2017 at 5:23 PM, Webert de Souza Lima
>> <webert.boss@xxxxxxxxx> wrote:
>> > Hi,
>> >
>> > by issuing `ceph daemonperf mds.x` I see the following columns:
>> >
>> > -----mds------ --mds_server-- ---objecter--- -----mds_cache-----
>> > ---mds_log----
>> > rlat inos caps|hsr  hcs  hcr |writ read actv|recd recy stry purg|segs
>> > evts
>> > subm|
>> >   0   95   41 |  0    0    0 |  0    0    0 |  0    0   25    0 |  1
>> > 628
>> > 0
>> >   0   95   41 |  0    0    0 |  0    0    0 |  0    0   25    0 |  1
>> > 628
>> > 0
>> >   0   95   41 |  0    0    0 |  0    0    0 |  0    0   25    0 |  1
>> > 628
>> > 0
>> >   0   95   41 |  0    0    0 |  0    0    0 |  0    0   25    0 |  1
>> > 628
>> > 0
>> >   0   95   41 |  0    0    0 |  0    0    0 |  0    0   25    0 |  1
>> > 628
>> > 0
>> >
>> > It's not clear to me what each column mean, but I can't find it
>> > anywhere.
>> > Also the labels are confusing. Why is there mds and mds_server?
>>
>> The mds, mds_server etc refer to internal subsystems within the
>> ceph-mds process (their naming is arcane).
>>
>> The abbreviated names for performance counters are the "nick" item in
>> the output of "ceph daemon <xyz> perf schema" -- for sufficiently
>> recent code you should see a description field there too.
>>
>> John
>>
>>
>> > Regards,
>> >
>> > Webert Lima
>> > DevOps Engineer at MAV Tecnologia
>> > Belo Horizonte - Brasil
>> >
>> > _______________________________________________
>> > ceph-users mailing list
>> > ceph-users@xxxxxxxxxxxxxx
>> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
>> >
>
>
>
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