Dear all, I am setting up a big scale GlusterFS with tow servers and about 400 clients. The problems taht I encountered is every time I log in client, it takes 10 to 30 secs as well as ls command(even not in share dirs). Could any help to increase the performance? Thanks. Environment: Servers: Two RadHat 5 x86_64 machines. Each shares 2TB storage making RAID 1 for HA. Clients: 400 machines with Two RadHat 5 x86_64OS and install fuse-2.6.3-3.slc5. I have tried this guide, it doesn't work. ( http://www.mail-archive.com/gluster-devel at nongnu.org/msg01985.html ) Files: In gluster01 already have 1T files and gluster02 not really sync yet. I have tried close gluster02 to prevent sync latency, but it still takes about 5 to 10 secs. Most of files are less than 10M but been read really frequently. Configs: gluster01-export.vol ## file auto generated by /usr/bin/glusterfs-volgen (export.vol) # Cmd line: # $ /usr/bin/glusterfs-volgen --name gluster --raid 1 gluster01:/opt/exp_soft/ gluster02:/opt/exp_soft/ volume posix1 type storage/posix option directory /opt/exp_soft/ end-volume volume locks1 type features/locks subvolumes posix1 end-volume volume brick1 type performance/io-threads option thread-count 16 subvolumes locks1 end-volume volume server-tcp type protocol/server option transport-type tcp option auth.addr.brick1.allow * option transport.socket.bind-address MY-IP-1 option transport.socket.listen-port 6996 option transport.socket.nodelay on subvolumes brick1 end-volume ==================================================================================== gluster02-export.vol gluster01-export.vol ## file auto generated by /usr/bin/glusterfs-volgen (export.vol) # Cmd line: # $ /usr/bin/glusterfs-volgen --name gluster --raid 1 gluster01:/opt/exp_soft/ gluster02:/opt/exp_soft/ volume posix1 type storage/posix option directory /opt/exp_soft/ end-volume volume locks1 type features/locks subvolumes posix1 end-volume volume brick1 type performance/io-threads option thread-count 16 subvolumes locks1 end-volume volume server-tcp type protocol/server option transport-type tcp option auth.addr.brick1.allow * option transport.socket.bind-address MY-IP-2 option transport.socket.listen-port 6996 option transport.socket.nodelay on subvolumes brick1 end-volume ==================================================================================== Clients: glusterfs.vol ## file auto generated by /usr/bin/glusterfs-volgen (mount.vol) # Cmd line: # $ /usr/bin/glusterfs-volgen --name gluster --raid 1 gluster01:/opt/exp_soft/ gluster02:/opt/exp_soft/ # RAID 1 # TRANSPORT-TYPE tcp volume gluster02-1 type protocol/client option transport-type tcp option remote-host gluster02 option transport.socket.nodelay on option transport.remote-port 6996 option remote-subvolume brick1 end-volume volume gluster01-1 type protocol/client option transport-type tcp option remote-host gluster01 option transport.socket.nodelay on option transport.remote-port 6996 option remote-subvolume brick1 end-volume volume mirror-0 type cluster/replicate subvolumes gluster01-1 gluster02-1 end-volume volume readahead type performance/read-ahead option page-count 4 subvolumes mirror-0 end-volume volume iocache type performance/io-cache option cache-size `echo $(( $(grep 'MemTotal' /proc/meminfo | sed 's/[^0-9]//g') / 5120 ))`MB option cache-timeout 1 subvolumes readahead end-volume volume quickread type performance/quick-read option cache-timeout 1 option max-file-size 64kB subvolumes iocache end-volume volume writebehind type performance/write-behind option cache-size 4MB subvolumes quickread end-volume volume statprefetch type performance/stat-prefetch subvolumes writebehind end-volume BR, Todd
