tuning arg

roles/base/files/init.sh

@@ -44,9 +44,10 @@ fs.file-max = 65535
 net.ipv4.tcp_retries2 = 3
 net.ipv4.route.gc_timeout = 100
 vm.swappiness = 0
+vm.overcommit_memory = 1
 EOF
 sysctl -p &>/dev/null
-
+echo 1024 >/proc/sys/net/core/somaxconn
 #Install docker-ce
 sudo yum install -y yum-utils device-mapper-persistent-data lvm2
 sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo