Thank you for the reply, Neeraj - solved!
I was just going off of the document at
https://docs.ceph.com/en/quincy/cephfs/cephfs-top/ - I did not see
a specified terminal emulator listed, but yes, after switching my
Secure Shell program to XTerm, that seems to have fixed it. Also,
now 'ceph fs perf stats' shows a "wall of text" in an unformatted
way, which is what I assume cephfs-top is formatting so nicely in
its python script.
I appreciate the help, and I will make an edit request to that
document adding the information I have learned from you and Xiubo,
so other relative novices like myself will perhaps be able to fix
these issues on their own in the future!
Hi Zach,Seeing the `fs perf stats` output , it looks like you are not using the latest build. Lots of enhancements are being done in cephfs-top recently.Will suggest to use latest build for better results.And regarding your `use_default_colors()` error, it looks like there some issue with the unsupported terminal emulator.
On Thu, Oct 20, 2022 at 12:20 AM Zach Heise (SSCC) <heise@xxxxxxxxxxxx> wrote:
_______________________________________________Thank you, Xiubo - yes, checking my ceph.repo file as specified at https://docs.ceph.com/en/pacific/install/get-packages/#rhel reminded me that I had set the ceph-noarch repo to disabled, because we didn't want ceph trying to update itself outside of using cephadm for new builds. Flipping that bit to 1 then re-running yum update then yum install cephfs-top solved that problem.
However, that leads to a second question then - after running the required command to create the fstop user with $ ceph auth get-or-create client.fstop mon 'allow r' mds 'allow r' osd 'allow r' mgr 'allow r' as the instructions specify, and adding the file ceph.client.fstop.keyring with the relevant key to /etc/ceph on the node in question (which the instructions do not specify and I will make a github edit later), I am getting an error:
"exception: use_default_colors() returned ERR"
Beyond that, it seems like the system that cephfs-top needs to work, perf stats, has no data in the output fields?
ceph01.ssc.wisc.edu> ceph fs perf stats
{"version": 1, "global_counters": ["cap_hit", "read_latency", "write_latency", "metadata_latency", "dentry_lease", "opened_files", "pinned_icaps", "opened_inodes", "read_io_sizes", "write_io_sizes"], "counters": [], "client_metadata": {}, "global_metrics": {}, "metrics": {"delayed_ranks": []}}I activated ceph fs perf stats yesterday, so by this point I should have data in the stats, unless there is a problem elsewhere?
Zach Heise
On 2022-10-18 7:56 PM, Xiubo Li wrote:
Hi Zach,
On 18/10/2022 04:20, Zach Heise (SSCC) wrote:
I'd like to see what CephFS clients are doing the most IO. According to this page: https://docs.ceph.com/en/quincy/cephfs/cephfs-top/ - cephfs-top is the simplest way to do this? I enabled 'ceph mgr module enable stats' today, but I'm a bit confused about what the best way is to get the cephfs-top package to use this perf stats.
If you are building code from source then you should run it just by:
[ceph/build]$ ./src/tools/cephfs/top/cephfs-top
You can also find the main/quincy/pacific builds for different distro pacakges under [1] and their artifacts are made available under [2].
[1] https://shaman.ceph.com/builds/ceph/
[2] https://shaman.ceph.com/repos/ceph/Thanks!
- Xiubo
The ceph doc page linked above just mentions "cephfs-top is available as part of cephfs-top package" but it does not list what repo is required to access this. Anyone using cephfs-top themselves, and know the missing parts of this document that should be added?
--
Zach Heise
_______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
ceph-users mailing list -- ceph-users@xxxxxxx
To unsubscribe send an email to ceph-users-leave@xxxxxxx
--
_______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
