Elasticsearch 6.x集群搭建

怼烎@ 2022-04-17 03:42 221阅读 0赞

以下操作，每个节点相同

### 1、关闭防火墙和SELINUX ###

systemctl stop firewalld
    systemctl disable firewalld

setenforce 0
    sed -i "s#SELINUX=enforcing#SELINUX=disabled#g" /etc/selinux/config

### 2、JDK安装 ###

rpm -qa|grep java|xargs rpm -e --nodeps

tar -zxvf jdk*.tar.gz -C /opt
    vi /etc/profile.d/custom.sh

source /etc/profile.d/custom.sh
     java -version

### 3、创建用户和组 ###

groupadd elastic
     useradd elastic -g elastic
     passwd elastic

### 4、Elasticsearch软件包安装 ###

tar -zxvf elastic*.tar.gz -C /opt

chown -R elastic:elastic /opt/elasticsearch-6.4.3

mkdir -p /var/log/elasticsearch
    mkdir -p  /data/elasticsearch
    chown -R elastic:elastic /var/log/elasticsearch
    chown -R elastic:elastic /data/elasticsearch

cd /opt/elasticsearch-6.4.3/config/
    vi elasticsearch.yml

# ---------------------------------- Cluster -----------------------------------
    #
    # Use a descriptive name for your cluster:
    #
    #cluster.name: my-application
    #ES集群名
    cluster.name: tpa
    
    # ------------------------------------ Node ------------------------------------
    #
    # Use a descriptive name for the node:
    #
    #node.name: node-1
    node.name: elastic1
    #默认情况下，ElasticSearch将当前节点配置为同时作为候选主结点和数据结点
    #候选主结点
    node.master: true
    #数据结点
    node.data: true
    #
    # Add custom attributes to the node:
    #
    #node.attr.rack: r1
    #
    # ----------------------------------- Paths ------------------------------------
    #
    # Path to directory where to store the data (separate multiple locations by comma):
    #
    #path.data: /path/to/data
    #数据目录，多个数据文件使用逗号隔开
    path.data: /data/elasticsearch
    #
    # Path to log files:
    #
    #path.logs: /path/to/logs
    #日志目录
    path.logs: /var/log/elasticsearch
    
    # ---------------------------------- Network -----------------------------------
    #
    # Set the bind address to a specific IP (IPv4 or IPv6):
    #
    #network.host: 192.168.0.1
    #配置当前结点绑定的IP地址，默认为0.0.0.0
    network.host: 0.0.0.0
    # Set a custom port for HTTP:
    #
    #http.port: 9200
    #对外服务的HTTP端口
    http.port: 9200
    #结点间交互的TCP端口
    transport.tcp.port: 9300
    # For more information, consult the network module documentation.
    #
    # --------------------------------- Discovery ----------------------------------
    # 集群的发现机制
    # Pass an initial list of hosts to perform discovery when new node is started:
    # The default list of hosts is ["127.0.0.1", "[::1]"]
    #
    #discovery.zen.ping.unicast.hosts: ["host1", "host2"]
    #指定接收单播请求的主机，推荐包含组成集群的所有主机，主机之间用逗号隔开
    discovery.zen.ping.unicast.hosts: ["elastic1", "elastic2", "elastic3"]
    
    
    # Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1):
    #discovery.zen.minimum_master_nodes:
    #默认值是1，该属性定义的是为了组成一个集群，相互连接的候选主结点的最小数目
    #强烈推荐该属性的设置使用多数原则：(master_eligible_nodes / 2) + 1，既能避免出现脑裂（split-brain）
    discovery.zen.minimum_master_nodes: 3
    #
    # For more information, consult the zen discovery module documentation.
    #

sed -i '$a\vm.max_map_count=262144' /etc/sysctl.conf
    sysctl -p

vi /etc/security/limits.conf

* hard nofile 65536
    * soft nofile 65536
    * soft nproc 2048
    * hard nproc 4096
    # End of file

注意，**/etc/security/limits.conf文件修改后需要重新登录用户，才会生效。**

su elastic
    bin/elasticsearch -d
    jps