The leases are all at 30 seconds in production. The first QFS system is in shared mode as both a client and metadata server. After we get the performance improved other systems can join this cluster. The spikes today have been from 20% cpu up to 60-80% range.
With the client and metadata server running on the same system will just the one samcmd per lease type be enough? (I guess it would be) -Jeff Dean Roehrich wrote: > On Tue, Dec 04, 2007 at 12:09:21PM -0600, jtw wrote: >> Is it safe to change QFS shared lease times on the fly using samcmd on a >> production system? Do the changes happen immediately and reset the >> timer or do all types of leases still renew following the same timer? > > It will apply to new leases. You'd have to set this on each node so that all > of them agree on the lease timeouts. (hmm, that really ought to be propagated > automatically) > > What values do you currently have for your lease times? From your earlier > message it sounds like you have them at 30 seconds. > > Dean
