[lustre-discuss] Lustre Monitoring metrics

[Masudul Hasan Masud Bhuiyan]

Thank you very much. Unfortunately, as I am doing my research on  3rd party
sc cluster, I don't have  access to these tools. Also, I am kind of
developing something like LMT. So, it will be great if I can get some idea
about these  metrics. I will be grateful if you can give me some direction
about where can I get idea about these metrics.

Regards.

On Sun, Feb 24, 2019 at 11:06 AM Andreas Dilger <adilger at whamcloud.com>
wrote:

> Probably for a new user it doesn't make sense to use the Lustre stats in
> /proc directly. There are a number of different tools that present these
> stats in a more useful manner, such as IML (GUI Web front end), LMT, lltop,
> etc.
>
> Cheers, Andreas
>
> On Feb 24, 2019, at 02:09, Masudul Hasan Masud Bhuiyan <
> masud.hasan at nevada.unr.edu> wrote:
>
> Hi,
>
> I am very new to Lustre and  I am trying to get idea about the lustre
> monitoring system. I have collected the stats from "/proc/fs/lustre".
> Unfortunately I couldn't understand what does these data are actually mean.
> I have tried to go through Lustre documentation and user guide to get
> understanding of the data. But had no luck.
>
> I will be grateful if you can help me to understand these log files. This
> is a sample of stats for metadat server. But I am not sure how can I
> interpret these stat. what does "mds_getattr"/mds_get_root/mds_quotactl
> means?
>
> Fri Feb 8 00:52:13 2019
> snapshot_time 1549615933.091769380 secs.nsecs
> req_waittime 540323978 samples [usec] 58 689541437 1767362743217
> 12488011030933825609
> req_active 540323988 samples [reqs] 1 142007 60970174330 3247243705183378
> mds_getattr 168893 samples [usec] 82 165621 390916699 1522734684023
> mds_close 110379799 samples [usec] 64 1231540 17796322782 62011789734542
> mds_readpage 1236125 samples [usec] 245 10402461 10527744335
> 1995909318950381
> mds_connect 6 samples [usec] 186 868 1900 969558
> mds_get_root 1 samples [usec] 85 85 85 7225
> mds_statfs 795609 samples [usec] 67 1109562 226674777 4390097174469
> mds_sync 6769 samples [usec] 361624 689541437 80448645395
> 7168190473271866793
> mds_quotactl 1449 samples [usec] 69 18051 551878 2621695252
> mds_getxattr 1886 samples [usec] 93 13792 419449 525089597
> mds_hsm_state_set 234556 samples [usec] 77 893155 96605623 1595746930715
> ldlm_cancel 115821035 samples [usec] 58 5627198 1149359370420
> 1270415775256810056
> obd_ping 23932 samples [usec] 87 34096 7061304 6296645618
> seq_query 38 samples [usec] 87 767 6885 1688653
> fld_query 3 samples [usec] 84 370 789 256181
>
> Sincerely yours,
> Masudul Hasan Masud
>
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