Elasticsearch(002)：分布式集群搭建、管理之ES集群搭建与配置---2019最新版

偏执的太偏执、 2023-06-16 08:09 42阅读 0赞

在JDK环境配置好的情况，我们接下来的安装和配置Elasticsearch集群了。

我们后续的文章采用的Es的版本都是6.5.4版本。

### 1. 下载ES、Kibana、LogStash的安装包 ###

elasticsearch-6.5.4.tar.gz
    kibana-6.5.4-linux-x86_64.tar.gz
    logstash-6.5.4.tar.gz

### 2. 将上述的安装包上传到服务器应的安装目录上 ###

名称    服务路径（不存在文件使用mkdir命令进行创建即可）
    es  --->  /usr/es/node-01
    es  --->  /usr/es/node-02
    es  --->  /usr/es/node-03
    kibana  --->  /usr/kibana
    logstash  --->  /usr/logstashll

### 3. 分别解压上述文件 ###

tar -zxvf elasticsearch-6.5.4.tar.gz
    tar -zxvf kibana-6.5.4-linux-x86_64.tar.gz
    tar -zxvf logstash-6.5.4.tar.gz

### 4. 分别配置每个节点的ES配置 ###

整体的方案是以同一台服务器三个不同的端口来模拟3个ES节点组成一个高可用高并发的集群为例。

这里以node-01节点为例，其他两个节点进行类似操作

1.  修改`elasticsearch.yml`,这是配置集群的关键

原有的文件内容

修改后的内容（我写注释都是进行了修改，依照此进行修改即可）

# ======================== Elasticsearch Configuration =========================
    #
    # NOTE: Elasticsearch comes with reasonable defaults for most settings.
    # Before you set out to tweak and tune the configuration, make sure you
    # understand what are you trying to accomplish and the consequences.
    #
    # The primary way of configuring a node is via this file. This template lists
    # the most important settings you may want to configure for a production cluster.
    #
    # Please consult the documentation for further information on configuration options:
    # https://www.elastic.co/guide/en/elasticsearch/reference/index.html
    #
    # ---------------------------------- Cluster -----------------------------------
    #
    # Use a descriptive name for your cluster:
    #
    #cluster.name: my-application
    #配置集群名称 三台服务器保持一致
    cluster.name: adam-es-server
    #
    # ------------------------------------ Node ------------------------------------
    #
    # Use a descriptive name for the node:
    #
    #node.name: node-1
    #配置单一节点名称，每个节点唯一标识
    node.name: node-01
    #
    # Add custom attributes to the node:
    #
    #node.attr.rack: r1
    #
    #指定该节点是否有资格被选举成为master结点，默认是true，如果原来的master宕机会重新选举新的master。
    node.master: true
    #指定该节点是否存储索引数据，默认为true
    node.data: true
    node.ingest: true #默认true
    # ----------------------------------- Paths ------------------------------------
    #
    # Path to directory where to store the data (separate multiple locations by comma):
    #
    #path.data: /path/to/data
    # 配置ES数据储存的路径，根据自己的实际路径进行调整
    path.data: /usr/es/node-01/elasticsearch-6.5.4/data
    #
    # Path to log files:
    #
    #path.logs: /path/to/logs
    # 配置ES日志数据储存的路径,根据自己的实际路径进行调整
    path.logs: /usr/es/node-01/elasticsearch-6.5.4/logs
    #
    # ----------------------------------- Memory -----------------------------------
    #
    # Lock the memory on startup:
    #
    #bootstrap.memory_lock: true
    # 设置为true可以锁住ES使用的内存，避免内存与swap分区交换数据
    bootstrap.memory_lock: false
    #
    # Make sure that the heap size is set to about half the memory available
    # on the system and that the owner of the process is allowed to use this
    # limit.
    #
    # Elasticsearch performs poorly when the system is swapping the memory.
    #
    # ---------------------------------- Network -----------------------------------
    #
    # Set the bind address to a specific IP (IPv4 or IPv6):
    #
    #network.host: 192.168.0.1
    # 设置绑定的ip地址,0.0.0.0表示任何网络均可连接。身生产环境不推荐这样配置，推荐配置成具体的ip
    network.host: 0.0.0.0
    #
    # Set a custom port for HTTP:
    #
    #http.port: 9200
    #端口:三个节点分别是9200 9201 9202
    http.port: 9200
    #
    # For more information, consult the network module documentation.
    #
    #集群结点之间通信端口
    transport.tcp.port: 9300
    # --------------------------------- Discovery ----------------------------------
    #
    # 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"]
    #设置集群中master节点的初始列表
    discovery.zen.ping.unicast.hosts: ["0.0.0.0:9300", "0.0.0.0:9301", "0.0.0.0:9302"]
    #
    # Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1):
    #
    #discovery.zen.minimum_master_nodes: 
    #主结点数量的最少值 ,此值的公式为：(master_eligible_nodes / 2) + 1 ，比如：有3个符合要求的主结点，那么这里要设置为2
    discovery.zen.minimum_master_nodes: 2
    #单机允许的最大存储结点数，通常单机启动一个结点建议设置为1，开发环境如果单机启动多个节点可设置大于1.
    node.max_local_storage_nodes: 2
    #
    # For more information, consult the zen discovery module documentation.
    #
    # ---------------------------------- Gateway -----------------------------------
    #
    # Block initial recovery after a full cluster restart until N nodes are started:
    #
    #gateway.recover_after_nodes: 3
    #
    # For more information, consult the gateway module documentation.
    #
    # ---------------------------------- Various -----------------------------------
    #
    # Require explicit names when deleting indices:
    #
    #action.destructive_requires_name: true
    # 下面两行配置为haad插件配置，三台服务器一致。
    http.cors.enabled: true
    http.cors.allow-origin: /.*/

### 5. 创建新用户提供给ES使用 ###

由于ES不能使用root账号使用，不然启动会报错，`Exception in thread "main" java.lang.RuntimeException: don't run elasticsearch as root.`  
所以我们必须新建一个用户给ES使用。

#添加es用户
    useradd es
    #给es用户授权目录权限
    chown es:es -R /usr/es/

### 6. 启动es服务 ###

切换到es用户，使用命令依次启动node-01、node-02、node-03

su es
    # 进入bin目录
    ./elasticsearch # 添加 -d 表示后台启动

在浏览器中输入`http://192.168.91.131:9200/` `http://192.168.91.131:9201/` `http://192.168.91.131:9202/`发现能够正常返回节点信息

到此集群的安装到此大功告成！！