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Hello,
After setting up LVS with Direct Routing, I noticed that even there is
absolutely no traffic passing through the LB,
the memory usage grows continuously until the whole RAM is filled.
Doing some investigations in /proc/slabinfo, I noticed that the RAM is
used by "dentry":
dentry 18933940 18933940 192 20 1 : tunables 120
60 8 : slabdata 946697 946697 0
The memory can be freed using:
echo 2 > /proc/sys/vm/drop_caches
As soon as the memory is cleared, it starts filling up again.
I find this behavior very odd and concerning. If anybody has experienced
something similar, or has any ideas, please share.
OS: CentOS 6.4 64bit
kernel: 2.6.32-358.18.1.el6.x86_64
latest patches applied via yum update
Thank you!
Radu
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