Hi all,
I installed glusterFS on 2 computers under Mandriva 2008.
Connection type : Ethernet 100 mbits/S (mii-tool result: negotiated
100baseTx-FD flow-control)
Hereafter is my configuration (same on both PCs):
*glusterfs-server.vol:*
volume dir_main
type storage/posix # POSIX FS
translator
option directory /main # Export
this directory
end-volume
volume locks_main
type features/posix-locks
subvolumes dir_main
end-volume
volume main
type protocol/server
option transport-type tcp/server # For
TCP/IP transport
subvolumes locks_main
option auth.ip.main.allow 127.0.0.1,172.16.1.* # Allow
access to "brick" volume
end-volume
*client.vol:*
volume main_loc
type protocol/client
option transport-type tcp/client
option remote-host localhost
option remote-subvolume main
end-volume
volume main_dist
type protocol/client
option transport-type tcp/client
option remote-host other
option remote-subvolume main
end-volume
volume raid_main_afr
type cluster/afr
subvolumes main_loc main_dist
option read-subvolume main_loc
end-volume
volume raid_main_ra
type performance/read-ahead
option page-size 128kB
option page-count 4
option force-atime-update off
subvolumes raid_main_afr
end-volume
volume raid_main_wb
type performance/write-behind
option aggregate-size 1MB
option flush-behind on
subvolumes raid_main_ra
end-volume
volume raid_main
type performance/io-cache
option cache-size 512MB
option page-size 1MB
option priority *:0 # *.html:2,*:1
option force-revalidate-timeout 2 # default is 1
subvolumes raid_main_wb
end-volume
It works fine, but slowly !
I'm a newbie in glusterFS, so may be some option isn't adequate. Please
advise.
Due to the option "read-subvolume main_loc" I didn't expect network
traffic when I just list files or read them, but actually, even with a
simple ls, I see a lot of network traffic.
A "ls -R" takes 7 to 8 seconds for less than 8000 files. If I do it
locally, I get the result instantly.
*Question 1:* Is this traffic normal on read only operation ?
*Question 2:* in the documentation, I read that there is 2 protocols :
ASCII protocol and binary protocol. Currently, according to what I see
with tcpdump, my glusterFS uses the ASCII protocol. I guess it's not the
best for performance ! What is the way to enforce it using the binary
protocol ?
Thank's for any help.
Best regards,
--
Francis GASCHET / NUMLOG
http://www.numlog.fr
Tel.: +33 (0) 130 791 616
Fax.: +33 (0) 130 819 286
NUMLOG recrute sur LOLIX :
http://fr.lolix.org/
