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Adjust neighbour table thresholds (bsc#1035923) #989

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Merged
rsalevsky merged 1 commit into from
Jun 9, 2017
Merged

Adjust neighbour table thresholds (bsc#1035923) #989

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3 changes: 3 additions & 0 deletions chef/cookbooks/neutron/files/default/sysctl-neighbour-table-overflow.conf
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Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
net.ipv4.neigh.default.gc_thresh1=1024
net.ipv4.neigh.default.gc_thresh2=2048
net.ipv4.neigh.default.gc_thresh3=4096
12 changes: 12 additions & 0 deletions chef/cookbooks/neutron/recipes/common_agent.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,18 @@
subscribes :run, resources(cookbook_file: disable_rp_filter_file), :delayed
end

neighbour_table_overflow_file = "/etc/sysctl.d/50-neutron-neighbour-table-overflow.conf"
cookbook_file neighbour_table_overflow_file do
source "sysctl-neighbour-table-overflow.conf"
mode "0644"
end

bash "reload neighbour-table-overflow.conf" do
code "/sbin/sysctl -e -q -p #{neighbour_table_overflow_file}"
action :nothing
subscribes :run, resources(cookbook_file: neighbour_table_overflow_file), :delayed
end

if neutron[:neutron][:networking_plugin] == "ml2" &&
(neutron[:neutron][:ml2_mechanism_drivers].include?("cisco_apic_ml2") ||
neutron[:neutron][:ml2_mechanism_drivers].include?("apic_gbp"))
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