[lustre-discuss] osc and llite stats files are not exported to clients

Degremont, Aurelien degremoa at amazon.com
Thu Jul 25 08:04:59 PDT 2019

Lustre is transitionning /proc files to /sys per kernel developer requests.

Instead of chasing where these files are located now depending on your Lustre version, 'lctl get_param' is the official way to read them.
This command will figure out where to properly read the files.

De : lustre-discuss <lustre-discuss-bounces at lists.lustre.org> au nom de U Sawangwit <u.sawangwit at gmail.com>
Date : jeudi 25 juillet 2019 à 13:15
À : "lustre-discuss at lists.lustre.org" <lustre-discuss at lists.lustre.org>
Objet : [lustre-discuss] osc and llite stats files are not exported to clients

Dear all,

   I am having trouble with lustre monitoring using Ganglia gmond_python_modules

    Upon closer inspections, I found that the stats files in /proc/fs/lustre/osc/*/
and /proc/fs/lustre/llite are missing (among other similar files in these directories).

     However, lctl get_param osc.*.stats and lctl get_param llite.*.stats return
parameters and values as you would expect. The stats files are what the
gmond_python_modules wants hence the problem monitoring with Ganglia.

    After many searching around, could not figure out what I could have done to
have stats export normally to clients and remounting did not help. On MDS and OSS,
I can see the obdfiler/*/export/*/stats or mdt/*/export/*/stats

    The lustre manual also said that the exporting of these info to client should be by

  Thank you in advance.


Utane Sawangwit, PhD.
Research Astronomer
National Astronomical Research Institute of Thailand (NARIT)
Sirindhon AstroPark, 260, Mue 4, Donkaew
Mae-Rim, Chiang Mai, 50180, Thailand
ดร. อุเทน แสวงวิทย์
อุทยานดาราศาสตร์สิรินธร 260 หมู่ 4 ต.ดอนแก้ว
อ.แม่ริม จ.เชียงใหม่ 50180

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