大体分两种情况:1.防火墙或者iptables的原因.2.etcd 配置错误.解决措施第一种情况比较好解决:开放对应端口/应用白名单,或者直接关闭防火墙第二种就需要参考官方指导，搞明白每个设置项的功能
大体分两种情况:
- 1.防火墙或者iptables的原因.
- 2.etcd 配置错误.
解决措施
第一种情况比较好解决:开放对应端口/应用白名单,或者直接关闭防火墙
第二种就需要参考官方指导，搞明白每个设置项的功能.
放个Ubuntu16.04的示例,CentOS的改一下依赖的network名称就可以,192.168.1.220替换为本机IP:
[Unit]Description=etcd - highly-available key value storeDocumentation=https://github.com/coreos/etcdDocumentation=man:etcdAfter=network.targetWants=network-online.target[Service]#Environment=DAEMON_ARGS=#Environment=ETCD_NAME=%H#Environment=ETCD_DATA_DIR=/var/lib/etcd/default#EnvironmentFile=-/etc/default/%pType=notifyUser=etcdWorkingDirectory=/var/lib/etcd/PermissionsStartOnly=true#ExecStart=/bin/sh -c "GOMAXPROCS=$(nproc) /usr/bin/etcd $DAEMON_ARGS"#ExecStart=/usr/bin/etcd $DAEMON_ARGSExecStart=/usr/bin/etcd / --name=etcd2 / --cert-file=/etc/kubernetes/ssl/etcd.pem / --key-file=/etc/kubernetes/ssl/etcd-key.pem / --peer-cert-file=/etc/kubernetes/ssl/etcd.pem / --peer-key-file=/etc/kubernetes/ssl/etcd-key.pem / --trusted-ca-file=/etc/kubernetes/ssl/ca.pem / --peer-trusted-ca-file=/etc/kubernetes/ssl/ca.pem / --initial-advertise-peer-urls=https://192.168.1.220:2380 / --listen-peer-urls=https://0.0.0.0:2380 / --listen-client-urls=https://0.0.0.0:2379 / --advertise-client-urls=https://192.168.1.220:2379 / --initial-cluster-token=k8s-etcd-cluster / --initial-cluster=etcd2=https://192.168.1.220:2380 / --initial-cluster-state=new / --data-dir=/var/lib/etcdRestart=on-abnormalRestartSec=5sLimitNOFILE=65536[Install]WantedBy=multi-user.targetAlias=etcd2.service