I'm running glusterfs 1.3.11. I have cache-size set to '2048MB' in
my conf file, but in this particular test I'm running (catting a
6.3GB file to /dev/null), it isn't stopping at 2GB. As of this
moment it's gone to 3.8GB and the box only has 4GB RAM; I'm watching
curiously to see when the box will crash. I assume this is non-
standard behavior? It should stop at 2048MB right?
Vitals: CentOS 5.2 64-bit, kernel 2.6.23.14, glusterfs-1.3.11,
fuse-2.7.2glfs9
Below is my entire config file, though the relevant section is ioc.
### Add client feature and attach to remote subvolume of server1
volume distfs01
type protocol/client
option transport-type tcp/client # for TCP/IP transport
option remote-host 10.8.101.51 # IP address of the remote brick
option remote-subvolume brick # name of the remote volume
end-volume
### Add client feature and attach to remote subvolume of server2
volume distfs02
type protocol/client
option transport-type tcp/client # for TCP/IP transport
option remote-host 10.8.101.52 # IP address of the remote brick
option remote-subvolume brick # name of the remote volume
end-volume
volume distfs03
type protocol/client
option transport-type tcp/client
option remote-host 10.8.101.53
option remote-subvolume brick
end-volume
volume distfs04
type protocol/client
option transport-type tcp/client
option remote-host 10.8.101.54
option remote-subvolume brick
end-volume
volume stripe0
type cluster/stripe
option block-size *:1MB
option scheduler alu
option alu.order read-usage:write-usage:disk-usage
option alu.read-usage.entry-threshold 20%
option alu.read-usage.exit-threshold 4%
option alu.write-usage.entry-threshold 20%
option alu.write-usage.exit-threshold 4%
option alu.disk-usage.entry-threshold 2GB
option alu.disk-usage.exit-threshold 100MB
subvolumes distfs01 distfs02 distfs03 distfs04
end-volume
volume ioc
type performance/io-cache
subvolumes stripe0 # In this example it is 'client' you may
have to change it according to your spec file.
option page-size 1MB # 128KB is default
option cache-size 2048MB # 32MB is default
option force-revalidate-timeout 5 # 1second is default
option priority *.psiblast:3,*.seq:2,*:1
end-volume
Dan Parsons
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