[ceph-users] Re: ceph fs perf stats output is empty
Each array has different types. You need to look at the below cephfs-top
code and see how they are interpreted.
[1]
https://github.com/ceph/ceph/blob/main/src/tools/cephfs/top/cephfs-top#L66-L83
[2]
https://github.com/ceph/ceph/blob/main/src/tools/cephfs/top/cephfs-top#L641-L714
[3]
https://github.com/ceph/ceph/blob/main/src/tools/cephfs/top/cephfs-top#L110-L143
[4]
https://github.com/ceph/ceph/blob/main/src/tools/cephfs/top/cephfs-top#L775-L823
On 12/06/23 14:23, Denis Polom wrote:
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outdated in most cases.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 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
> ___
> ceph-users mailing list -- ceph-users@ceph.io
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[ceph-users] Re: ceph fs perf stats output is empty
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 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
> ___
> ceph-users mailing list -- ceph-users@ceph.io
> To unsubscribe send an email to ceph-users-le...@ceph.io
>
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[ceph-users] Re: ceph fs perf stats output is empty
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 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
> > ___
> > ceph-users mailing list -- ceph-users@ceph.io
> > To unsubscribe send an email to ceph-users-le...@ceph.io
> >
> ___
> ceph-users mailing list -- ceph-users@ceph.io
> To unsubscribe send an email to ceph-users-le...@ceph.io
>
>
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[ceph-users] Re: ceph fs perf stats output is empty
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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