2、配置elasticsearch.yml。
a节点（192.168.137.200）
#集群名称
cluster.name : elasticsearch
#节点名称
node.name : node-a
#是不是有资格竞选主节点
node.master : true
#是否存储数据
node.data : true
#最大集群节点数
node.max_local_storage_nodes : 3
#网关地址
network.host : 192.168.137.200
#端口
http.port : 9200
#内部节点之间沟通端口
transport.tcp.port : 9300
#es7.x 之后新增的配置，写入候选主节点的设备地址，在开启服务后可以被选为主节点
discovery.seed_hosts : [ "192.168.137.200:9300" , "192.168.137.201:9300" , "192.168.137.202:9300" ]
#es7.x 之后新增的配置，初始化一个新的集群时需要此配置来选举master
cluster.initial_master_nodes : [ "192.168.137.200" , "192.168.137.201" , "192.168.137.202" ]
# ping超时时长，默认3S，适当修改，防止脑裂
discovery.zen.ping_timeout: 120s
client.transport.ping_timeout: 60s
#数据存储路径(这里不配，默认就好)
##path.data: /home/es/software/es/data
#日志存储路径
#path.logs: /home/es/software/es/logs
bootstrap.system_call_filter: false
http.cors.enabled: true
http.cors.allow-origin: "*"
http.cors.allow-methods: OPTIONS, HEAD, GET, POST, PUT, DELETE
http.cors.allow-headers: "X-Requested-With, Content-Type, Content-Length, X-User"
b节点（192.168.137.201）
#集群名称 cluster.name: elasticsearch #节点名称 node.name: node-b #是不是有资格竞选主节点 node.master: true #是否存储数据 node.data: true #最大集群节点数 node.max_local_storage_nodes: 3 #网关地址 network.host: 192.168.137.201 #端口 http.port: 9200 #内部节点之间沟通端口 transport.tcp.port: 9300 #es7.x 之后新增的配置，写入候选主节点的设备地址，在开启服务后可以被选为主节点 discovery.seed_hosts: ["192.168.137.200:9300","192.168.137.201:9300","192.168.137.202:9300"] #es7.x 之后新增的配置，初始化一个新的集群时需要此配置来选举master cluster.initial_master_nodes: ["192.168.137.200", "192.168.137.201","192.168.137.202"] # ping超时时长，默认3S，适当修改，防止脑裂 discovery.zen.ping_timeout: 120s client.transport.ping_timeout: 60s #数据存储路径(这里不配，默认就好) ##path.data: /home/es/software/es/data #日志存储路径 #path.logs: /home/es/software/es/logs bootstrap.system_call_filter: false http.cors.enabled: true http.cors.allow-origin: "*" http.cors.allow-methods: OPTIONS, HEAD, GET, POST, PUT, DELETE http.cors.allow-headers: "X-Requested-With, Content-Type, Content-Length, X-User"
c节点（192.168.137.202）
#集群名称 cluster.name: elasticsearch #节点名称 node.name: node-c #是不是有资格竞选主节点 node.master: true #是否存储数据 node.data: true #最大集群节点数 node.max_local_storage_nodes: 3 #网关地址 network.host: 192.168.137.202 #端口 http.port: 9200 #内部节点之间沟通端口 transport.tcp.port: 9300 #es7.x 之后新增的配置，写入候选主节点的设备地址，在开启服务后可以被选为主节点 discovery.seed_hosts: ["192.168.137.200:9300","192.168.137.201:9300","192.168.137.202:9300"] #es7.x 之后新增的配置，初始化一个新的集群时需要此配置来选举master cluster.initial_master_nodes: ["192.168.137.200", "192.168.137.201","192.168.137.202"] # ping超时时长，默认3S，适当修改，防止脑裂 discovery.zen.ping_timeout: 120s client.transport.ping_timeout: 60s #数据存储路径(这里不配，默认就好) ##path.data: /home/es/software/es/data #日志存储路径 #path.logs: /home/es/software/es/logs bootstrap.system_call_filter: false http.cors.enabled: true http.cors.allow-origin: "*" http.cors.allow-methods: OPTIONS, HEAD, GET, POST, PUT, DELETE http.cors.allow-headers: "X-Requested-With, Content-Type, Content-Length, X-User"
Elasticsearch启动失败，检查没有通过，报错
ERROR: [2] bootstrap checks failed [ 1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
[1]: max file descriptors [65535] for elasticsearch process is too low, increase to at least [65536]
编辑 /etc/security/limits.conf，追加以下内容；
-
soft nofile 65536
-
hard nofile 65536
[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
编辑 /etc/sysctl.conf，追加以下内容： vm.max_map_count=655360 保存后，执行： sysctl -p
错误提示：ERROR: [1] bootstrap checks failed [ 1]: max number of threads [1024] for user [elasticsearch] is too low, increase to at least [2048] vi /etc/security/limits.d/90-nproc.conf，把1024改为4096
-
* soft nproc 4096
-
