Commit b6b47196 authored by Łukasz Nowak's avatar Łukasz Nowak

Increase ARP cache.

Solves "Neighbour table overflow." and network issues.
parent 276d1e23
......@@ -79,6 +79,20 @@ MAILTO=root
0 0 * * * root /opt/slapos/bin/slapgrid-ur --verbose --logfile=/opt/slapos/slapgrid-ur.log --pidfile=/opt/slapos/slapgrid-ur.pid /etc/slapos/slapos.cfg >> /opt/slapos/slapgrid-ur.log 2>&1
""" > /etc/cron.d/slapos
# Setup more server like network parameters in order to avoid
# "Neighbour table overflow."
# Those machines are itself has a lot of interfaces and are in
# heavily networked environment, so limit of ARP cache for IPv4
# and IPv6 is 4x higher then default
# More tuning can be applied from: http://www.enigma.id.au/linux_tuning.txt
sysctl -w \
net.ipv4.neigh.default.gc_thresh1=512 \
net.ipv4.neigh.default.gc_thresh2=1024 \
net.ipv4.neigh.default.gc_thresh3=2048 \
net.ipv6.neigh.default.gc_thresh1=512 \
net.ipv6.neigh.default.gc_thresh2=1024 \
net.ipv6.neigh.default.gc_thresh3=2048
# Execute slapformat
echo -n "Running slapformat..."
/opt/slapos/bin/slapformat --verbose --console /etc/slapos/slapos.cfg
......
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