elasticsearch集群扩展新节点

原集群配置

原来集群的节点不需要做任何修改和重启服务,新节点符合条件会自动加入集群

新节点配置

配置文件的集群名字和nodename配置好即可

cluster.name: taishiescluster   
node.name: node-195

#cluster.name集群名称和原来的一样
#nodename 配置成唯一标识

path.data: /data/taishi/es-cluster/data
#
# Path to log files:
#
path.logs: /data/taishi/es-cluster/logs
#
# ----------------------------------- Memory -----------------------------------
http.port: 9200


#这里无需添加
discovery.seed_hosts: ["elastic-node1", "elastic-node2", "elastic-node3"]


#
# ---------------------------------- Various -----------------------------------
#
xpack.security.enabled: true
xpack.security.http.ssl.enabled: true
xpack.security.transport.ssl.enabled: true

xpack.license.self_generated.type: basic
xpack.security.http.ssl.key: certs/instance/instance.key
xpack.security.http.ssl.certificate: certs/instance/instance.crt
xpack.security.http.ssl.certificate_authorities: certs/ca/ca.crt
xpack.security.transport.ssl.verification_mode: certificate
xpack.security.transport.ssl.key: certs/instance/instance.key
xpack.security.transport.ssl.certificate: certs/instance/instance.crt
xpack.security.transport.ssl.certificate_authorities: certs/ca/ca.crt

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问题解决

1.新节点可以成功启动,但无法加入集群

新节点的防火墙问题

firewall-cmd --zone=trusted --add-source=192.168.100.0/24 --permanent
firewall-cmd --zone=trusted --add-source=172.16.100.0/24 --permanent
firewall-cmd --reload