}
}
},
- :apt => {
- :sources => ["nginx"]
+ :networking => {
+ :tcp_fastopen_key => "tile"
},
- :munin => {
- :plugins => {
- :cpu => {
- :user => { :warning => 200, :critical => 400 }
- }
- }
+ :nginx => {
+ :access_log => false
},
:sysctl => {
+ :sockets => {
+ :comment => "Increase size of connection queue",
+ :parameters => {
+ "net.core.somaxconn" => 10000
+ }
+ },
:network_conntrack_time_wait => {
:comment => "Only track completed connections for 30 seconds",
:parameters => {
:network_conntrack_max => {
:comment => "Increase max number of connections tracked",
:parameters => {
- "net.netfilter.nf_conntrack_max" => "131072"
+ "net.netfilter.nf_conntrack_max" => "524288"
+ }
+ },
+ :network_local_port_range => {
+ :comment => "Increase available local port range",
+ :parameters => {
+ "net.ipv4.ip_local_port_range" => "1024\t65535"
}
},
- :kernel_tfo_listen_enable => {
- :comment => "Enable TCP Fast Open for listening sockets",
+ :network_tcp_timewait_reuse => {
+ :comment => "Allow tcp timewait reuse",
:parameters => {
- "net.ipv4.tcp_fastopen" => 3
+ "net.ipv4.tcp_tw_reuse" => 1
}
},
:squid_swappiness => {
:comment => "Prefer not to swapout to free memory",
:parameters => {
- "vm.swappiness" => "30"
+ "vm.swappiness" => "1"
+ }
+ },
+ :sched_wakeup => {
+ :comment => "Tune scheduler",
+ :parameters => {
+ "kernel.sched_min_granularity_ns" => "10000000",
+ "kernel.sched_wakeup_granularity_ns" => "15000000"
+ }
+ }
+ },
+ :tools => {
+ :cron => {
+ :load => {
+ :nice => 19,
+ :io_scheduling_class => "best-effort",
+ :io_scheduling_priority => 7
}
}
}