[Lustre-discuss] MDS Recovery: which client

[Andreas Dilger]

On Mar 02, 2009  09:26 -0800, Robert Read wrote:
> I don't recall any bug for per-client export stats. As of 1.6.6 there is 
> now a file in proc for per-import stats, but those are on the client, eg:
>
> [root at client1 tests]# cat /proc/fs/lustre/mdc/*/import
> import: lustre-MDT0000-mdc-cf4f3e00
>     target: lustre-MDT0000_UUID at 10.0.1.180@tcp
>     state: FULL
>     inflight: 0
>     unregistering: 0
>     conn_cnt: 2
>     generation: 1
>     inval_cnt: 0
>     last_replay_transno: 0
>     peer_committed_transno: 0
>     last_trasno_checked: 0
>     flags: replayable pingable

Ah, that is what I was thinking about.  Having something similar for each
export on the server reporting the recovery state information (e.g. flags,
conn_cnt, last_replay_transno, last_request_time, connect_flags, etc)
would be quite useful for a number of debugging reasons.

Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.