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cc'ing this comment to lustre-devel, referring to changing
the per-export stats
on the servers to per-nid stats. Per-nid stats would be
persistent across client
disconnections.
(In reply to comment #56)
> OK, new thought - forget the per-export stats, and only
use the per-nid stats.
> Most of the time they will be duplicates of each other
anyhow, with the main
> difference being that the per-export stats are
destroyed when a client
> disconnects.
>
> New structure:
> +- exports
> |
> +- nid#1
> | |
> | + stats
> | |
> | + uuids
> |
> +- nid#2...
> +- clear
>
> The "uuid"s file would list the uuids of
_active_ exports, so if there was
> nothing connected from that nid at the moment, the
uuids file would be empty.
> (That way people can easily see if the nid is
"stale".)
>
> The other thing we should do is have a way to clear all
the stale nids, so I
> propose echoing a 0 into a new file "clear"
under the exports directory. This
> will erase any nid subdir that is not currently in use,
and reset the stats of
> any nid that is in use.
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