Hello,
I have a two node cluster configured like:
Ubuntu 10.04 + CMAN + DRBD + GFS2
In a benchmark, I run simultaneously on both nodes, a script that make
write operations in the filesystem until it fills.
But when I run the benchmark, foo-node remains almost the whole time
waiting for bar-node write to the file system. Is this normal? How could
I optimize this?
Cman config:
################################################################################
<?xml version="1.0"?>
<cluster name="MyCluster" config_version="1">
<logging debug="on"/>
<totem consensus="6000" token="3000"/>
<cman two_node="1" expected_votes="1"/>
<dlm plock_ownership="1" plock_rate_limit="0"/>
<gfs_controld plock_rate_limit="0"/>
<clusternodes>
<clusternode name="192.168.0.1" nodeid="1">
<fence>
<method name="human">
<device name="human" nodename="192.168.0.1"/>
</method>
</fence>
</clusternode>
<clusternode name="192.168.0.2" nodeid="2">
<fence>
<method name="human">
<device name="human" nodename="192.168.0.2"/>
</method>
</fence>
</clusternode>
</clusternodes>
<fencedevices>
<fencedevice name="human" agent="fence_manual"/>
</fencedevices>
</cluster>
################################################################################
GFS2 config:
################################################################################
mkfs.gfs2 -p lock_dlm -t MyCluster:MyFileSystem -j 2 /dev/drbd2
mount.gfs2 /dev/drbd2 /var/fs_tests/gfs2/ -o noatime
################################################################################
Thank you in advance
Best regards
--
Thiago Henrique
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