Hi,
yes, I've found that trick was I had to wait for about 15 sec to see the
metrics.
Now I can see some numbers. Are units there in miliseconds? And also I
see 2 numbers reported - is the first value actual and second is delta?
"client.4636": [
[
924,
4
],
[
0,
0
],
[
10,
981017512
],
[
0,
33484910
],
[
136,
0
],
[
1,
2
],
[
2,
2
],
[
1,
2
],
[
0,
0
],
[
302,
1266679808
],
[
0,
0
],
[
0,
0
],
[
0,
36361015
],
[
4205537661271535,
302
],
[
0,
11161636
],
[
190208004421472,
3
]
]
}
},
Thx!
On 6/12/23 06:36, Jos Collin wrote:
Additionally, the first `ceph fs perf stats` output would be empty or
outdated in most cases. You need to query a few times to get the
latest values. So try `watch ceph fs perf stats`.
On Mon, 12 Jun 2023 at 06:30, Xiubo Li <xiubli@xxxxxxxxxx> wrote:
On 6/10/23 05:35, Denis Polom wrote:
> Hi
>
> I'm running latest Ceph Pacific 16.2.13 with Cephfs. I need to
collect
> performance stats per client, but getting empty list without any
numbers
>
> I even run dd on client against mounted ceph fs, but output is only
> like this:
>
> #> ceph fs perf stats 0 4638 192.168.121.1
>
> {"version": 2, "global_counters": ["cap_hit", "read_latency",
> "write_latency", "metadata_latency", "dentry_lease",
"opened_files",
> "pinned_icaps", "
> opened_inodes", "read_io_sizes", "write_io_sizes",
"avg_read_latency",
> "stdev_read_latency", "avg_write_latency", "stdev_write_latency",
> "avg_metada
> ta_latency", "stdev_metadata_latency"], "counters": [],
> "client_metadata": {}, "global_metrics": {}, "metrics":
> {"delayed_ranks": []}}
>
> Do I need to set some extra options?
>
Were you using the ceph-fuse/libcephfs user space clients ? if so you
need to manually enable the 'client_collect_and_send_global_metrics'
option, which is disabled in Ceph Pacific 16.2.13.
While if you were using the kclient you need to make sure the
'disable_send_metrics' module parameter is 'false' for ceph.ko module.
Thanks
- Xiubo
> Does it work for some of you guys?
>
> Thank you
>
> dp
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