On Nov 16, 2007 1:18 PM, Felix Chu <felixchu@xxxxxxxxxxxxxxxxxxxx> wrote: > Hi all, > > > > I am new user to this QlusterFS project. I just started the test in local > environment with 3 server nodes and 2 client nodes. > > > > So far, it works fine and now I have two questions: > > > > 1. I cannot understand the option related to "namespace" clearly. I > find that in most of the server conf files separated "DS" and "NS" volumes, > what is the purpose of it? > namespace is used : * to assign inode numbers * to readdir(), instead of reading contents of all the subvols, unify readdir()s just from NS. > > > e.g. in > http://www.gluster.org/docs/index.php/GlusterFS_High_Availability_Storage_wi > th_GlusterFS > > > > there are "ds" and "ns" volumes in this config > > volume mailspool-ds > > type storage/posix > > option directory /home/export/mailspool > > end-volume > > > > volume mailspool-ns > > type storage/posix > > option directory /home/export/mailspool-ns > > end-volume > > > > 2. In my testing environment, I applied the replication function to > replicate from one server to other 2 servers. Then I unplug one of the > server. On client side it still ok to access the mount point. After a > period, I up the unplugged server again and find that all data during the > outage period does not appear on this server. Any steps required to sync > data back to new recovered server? > You need to open() that file to trigger selfheal for that file. Krishna
