[lustre-discuss] How to find out what the OSS interacts with the Lustre client at a given time ?

[Black.S]

Thanks for answer

I'm already using it.

However, this stats does not mean to understand how much data EACH 
lustre client transmits/receives and this stats does not give a name to 
the lustre clients (hostname server with client lustre).


I need to get a source-receiver (lustre client - xmt/rcv - oss ) to more 
accurately identify the amount of traffic from EACH client of lustre.

I need to get statistics for each lustre client per second.


Thanks for your time


15.04.2017 17:34, Raj пишет:
> I prefer to pull them from server side by:
>
> On OSS:
>  /proc/fs/lustre/obdfilter/*/exports/CLIENT_IP at FABRIC/stat
> snapshot_time             1492265908.551519 secs.usecs
> read_bytes                21575 samples [bytes] 458752 1048576 22621818880
> statfs                    1 samples [reqs]
> preprw                    21575 samples [reqs]
> commitrw                  21575 samples [reqs]
> ping                      1 samples [reqs]
>
> You can clear the stat (echo clear > stat) and then read at sample 
> intervals.
>
> Same on MDS node:
> /proc/fs/lustre/mdt/*/exports/CLIENT_IP at FABRIC/stat
> snapshot_time             1492266510.531256 secs.usecs
> open                      3 samples [reqs]
> close                     1 samples [reqs]
> unlink                    1 samples [reqs]
> getattr                   3 samples [reqs]
>
> Thanks
> _Raj
>
> On Sat, Apr 15, 2017 at 5:46 AM Black.S <Black.S52 at yandex.ru> wrote:
>
>     How to find out what the OSS interacts with the Lustre client at a
>     given
>     time?
>     Maybe it know from /proc/fs/lustre the lustre client or something
>     else ?
>
>     Is it possible to obtain such statistics from MDS, OSS or from a
>     lustre
>     client host ?
>
>     thanks for you time
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