Hi there,
I'm new to the GlusterFS project - looks superb and very promising! I'm
running into massive performance issues, however. I'm using the stock
default configuration that GlusterFS put in place when I created the
volume - it seems to reference io-cache, quick-read, etc in the volume
files, which makes me think it's already pulling in these optimizations.
This is a replicate setup - I've tried with 2, 3, and 4 nodes, and
performance remains awful on any of them - network communication seems
fine, with average speeds at 9-15MB/sec.
# gluster --version
glusterfs 3.1.1 built on Nov 29 2010 10:07:45
Repository revision: v3.1.1
With no other activity on the filesystems on any of my nodes:
# time ls -al
total 10072
drwx--x--x 10 root root 4096 Dec 3 16:50 ./
drwxr-xr-x 3 root root 4096 Dec 3 14:19 ../
-rw-r--r-- 1 root root 10240000 Dec 3 16:49 testfile
real 0m1.347s
user 0m0.000s
sys 0m0.000s
# time cp testfile testfile2
real 0m11.254s
user 0m0.000s
sys 0m0.000s
# time diff testfile*
real 0m5.792s
user 0m0.004s
sys 0m0.000s
Read speed is marginally faster than write speed, but still horrible -
e.g. if Apache is serving content off of a glusterfs mountpoint, it
times out 95% of the time before it can read the files. I'm using mount
-t glusterfs, with default mount options.
Can anyone point me in the right direction to getting things nice and
speedy here? I'd appreciate any feedback or help! I can provide any
configuration files necessary, or even root login access to the box(es)
via private e-mail if you want to poke around (these are just test boxes
presently).
Thanks,
--Chris
[email protected]
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