On 2009-12-04, at 20:18, Mag Gam wrote: > Is it possible to figure out what client is taking up the most I/O? We > have 8 OSS and 200 clients and it seems 5 to 6 clients are taking up > all the bandwidth and I am trying to figure out who it is...
In newer versions of Lustre (1.8 definitely, and later 1.6.x) there is an "exports" directory that contains statistics about each client, including brw_stats. Alternately, you can just enable the RPC statistics and then dump the debug logs after a some seconds and check for the OST_READ(3) and OST_WRITE(4). lctl set_param debug=+rpctrace sleep 20 lctl dk /tmp/debug grep "Handled.*:[34]$" /tmp/debug Cheers, Andreas -- Andreas Dilger Sr. Staff Engineer, Lustre Group Sun Microsystems of Canada, Inc. _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
