On Apr 7, 2010, at 4:55 PM, Chris Jin wrote: > Hi, I got a question about read-subvolume. > > Actually I want to do an replicate translator across two servers, but > only read from the local server using read-subvolume option. I turned > off self-healing because I want to do self-healing manually. When I > limited the bandwidth between the client and the other server, the > reading was really slow, but what I expected is the client only contacts > the local server. > > After searching on the internet, I found that we must suffer the latency > of checking the metadata on both servers, even when we only need to read > from one server. > > So my question is if there is a way to stop checking the metadata on > both servers when reading only one server. With read-subvolume set, readv() is sent only to the specified subvolume. However, lookup(), open(), and close() have to go to both subvolumes. There is no way to disable this. ------------------------------ Vikas Gorur Engineer - Gluster, Inc. +1 (408) 770 1894 ------------------------------
