elasticsearch集群安装

　　一**、环境准备**1、修改主机名[root@es-node01 ~]# hostnamectl set-hostname es-node01 [root@es-node02 ~]# hostnamectl set-hostname es-node02 [root@es-node03 ~]# hostnamectl set-hostname es-node02
　　2、修改hosts文件[root@es-node01 ~]# vim /etc/hosts 192.168.10.73   es-node01 192.168.10.74   es-node02 192.168.10.75   es-node02
　　3、准备目录[root@es-node01 ~]# mkdir -pv /data/elasticsearch/{data,log,plugins,conf} [root@es-node01 ~]# mkdir -pv /data/esbackup [root@es-node01 ~]# mkdir -pv /data/soft
　　4、系统init# 禁用swapping，开启服务器虚拟内存交换功能会对es产生致命的打击 [root@es-node01 ~]# swapoff -a  #vm.max_map_count  代表进程能拥有的最多内存区域 #fs.file-max       文件描述数量设置 [root@es-node01 ~]# vim /etc/sysctl.conf vm.max_map_count = 655350       fs.file-max = 655350 [root@es-node01 ~]# sysctl -p  soft nproc ：单个用户可用的最大进程数量(超过会警告); hard nproc：单个用户可用的最大进程数量(超过会报错); soft nofile  ：可打开的文件描述符的最大数(超过会警告); hard nofile ：可打开的文件描述符的最大数(超过会报错); [root@es-node01 ~]# vim /etc/security/limits.conf * soft nofile 655350 * hard nofile 655350 二、elasticsearch安装1、安装[root@es-node01 ~]# cd /data/soft/ [root@es-node01 ~]# rpm -ivh jdk-8u261-linux-x64.rpm [root@es-node01 ~]# java -version [root@es-node01 ~]# rpm -ivh elasticsearch-6.8.0.rpm [root@es-node01 ~]# chown -R elasticsearch.elasticsearch /data/elasticsearch* /data/esbackup [root@es-node01 ~]# export PATH=$PATH:/usr/share/elasticsearch/bin/ 2、配置文件
　　2.1、node1[root@es-node01 ~]# vim /etc/elasticsearch/elasticsearch.yml #基本配置 node.name: es-node01 node.master: true node.data: true network.host: 0.0.0.0 http.port: 9200 transport.tcp.port: 9300 bootstrap.mlockall: true transport.tcp.compress: false #目录设置 path.data: /data/elasticsearch/data path.logs: /data/elasticsearch/log path.plugins: /data/elasticsearch/plugins path.conf: /data/elasticsearch/conf path.repo: /data/esbackup #分片 index.number_of_shards: 5 index.number_of_replicas: 1 indices.recovery.max_size_per_sec: 1000mb indices.recovery.concurrent_streams: 10 #集群 cluster.name: es-cluster discovery.zen.minimum_master_nodes: 2 discovery.zen.ping.timeout: 3s discovery.zen.ping.multicast.enabled: false discovery.zen.ping.unicast.hosts: [＂192.168.10.73＂, ＂192.168.10.74＂,＂192.168.10.75＂] #设置密码 xpack.security.enabled: true xpack.security.transport.ssl.enabled: true xpack.security.transport.ssl.verification_mode: certificat
　　2.2、node2[root@es-node02 ~]# vim /etc/elasticsearch/elasticsearch.yml #基本配置 node.name: es-node02 node.master: true node.data: true network.host: 0.0.0.0 http.port: 9200 transport.tcp.port: 9300 bootstrap.mlockall: true transport.tcp.compress: false #目录设置 path.data: /data/elasticsearch/data path.logs: /data/elasticsearch/log path.plugins: /data/elasticsearch/plugins path.conf: /data/elasticsearch/conf path.repo: /data/esbackup #分片 index.number_of_shards: 5 index.number_of_replicas: 1 indices.recovery.max_size_per_sec: 1000mb indices.recovery.concurrent_streams: 10 #集群 cluster.name: es-cluster discovery.zen.minimum_master_nodes: 2 discovery.zen.ping.timeout: 3s discovery.zen.ping.multicast.enabled: false discovery.zen.ping.unicast.hosts: [＂192.168.10.73＂, ＂192.168.10.74＂,＂192.168.10.75＂] #设置密码 xpack.security.enabled: true xpack.security.transport.ssl.enabled: true xpack.security.transport.ssl.verification_mode: certificat
　　2.3、node3[root@es-node03 ~]# vim /etc/elasticsearch/elasticsearch.yml #基本配置 node.name: es-node03 node.master: true node.data: true network.host: 0.0.0.0 http.port: 9200 transport.tcp.port: 9300 bootstrap.mlockall: true transport.tcp.compress: false #目录设置 path.data: /data/elasticsearch/data path.logs: /data/elasticsearch/log path.plugins: /data/elasticsearch/plugins path.conf: /data/elasticsearch/conf path.repo: /data/esbackup #分片 index.number_of_shards: 5 index.number_of_replicas: 1 indices.recovery.max_size_per_sec: 1000mb indices.recovery.concurrent_streams: 10 #集群 cluster.name: es-cluster discovery.zen.minimum_master_nodes: 2 discovery.zen.ping.timeout: 3s discovery.zen.ping.multicast.enabled: false discovery.zen.ping.unicast.hosts: [＂192.168.10.73＂, ＂192.168.10.74＂,＂192.168.10.75＂] #设置密码  xpack.security.enabled: true xpack.security.transport.ssl.enabled: true xpack.security.transport.ssl.verification_mode: certificat 3、jvm设置
　　官方建议分配给es的内存不要超出系统内存的50%[root@es-node01 ~]# vim /etc/elasticsearch/jvm.options -Xms4096m -Xmx4096m 4、设置开机启动[root@es-node01 ~]# systemctl daemon-reload [root@es-node01 ~]# systemctl enable elasticsearch.service [root@es-node01 ~]# systemctl start elasticsearch.service 5、执行设置用户名和密码的命令,这里需要为4个用户分别设置密码，elastic, kibana, logstash_system,beats_system[root@es-node01 ~]# elasticsearch-setup-passwords interactive Please confirm that you would like to continue [y/N]y Enter password for [elastic]: Reenter password for [elastic]: Enter password for [apm_system]: Reenter password for [apm_system]: Enter password for [kibana]: Reenter password for [kibana]: Enter password for [logstash_system]: Reenter password for [logstash_system]: Enter password for [beats_system]: Reenter password for [beats_system]: Enter password for [remote_monitoring_user]: Reenter password for [remote_monitoring_user]: 6、修改密码[root@es-node01 ~]#  curl -H ＂Content-Type:application/json＂ -XPOST -u elastic ＂＂ -d ＂{ ＂password＂ : ＂123456＂ }＂