引言
最近项目需要部署ES教程，所以至此记录安装过程，本教程使用的es版本为6.0.1,并且在同一台机器上搭建三个节点的伪集群。
ES 集群至少部署 3 个节点，确保至少存在两个主节点保证数据可靠性。部署完一个节点后，把部署目录拷贝到其他节点，修改配置后就可以完成部署。
教程开始==================
1、下载需要的安装包
[root@jack soft]# wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.0.1.tar.gz
2、解压
tar -zxvf elasticsearch-6.0.1.tar.gz
3、在安装目录下面建立文件夹elasticsearch-6.0.1，然后创建第一个节点。
mv elasticsearch-6.0.1.tar.gz /data/app/elasticsearch-6.0.1/es1
4、修改配置文件
vim /data/app/elasticsearch-6.0.1/es1/config/elasticsearch.yml
需要修改的配置如下：
1、cluster.name: call-search //集群名称，建议 修改为有意义的名称， 不同的节点该名称需要保持一致。
2、node.name: node-1 //节点名称 每个节点名称不一致
3、path.data: /data/app/elasticsearch-6.0.1/es1 //数据存放路径
4、path.logs: /data/logs/elasticsearch/es1 //日志存放路径
5、network.host: 172.21.64.17 // 服务器的内网地址
6、http.port: 9201 //对外通讯端口
7、transport.tcp.port: 9301 //集群内部通讯端口
8、discovery.zen.ping.unicast.hosts: ["172.21.64.17:9301", "172.21.64.17:9302","172.21.64.17:9303"] //集群配置
9、discovery.zen.minimum_master_nodes: 2 //集群存活最少节点数量
修改上面几个配置项，就可以了，下面是我项目中的配置文件。各位读者可以参考
# ======================== 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: call-search # # ------------------------------------ Node ------------------------------------ # # Use a descriptive name for the node: # node.name: node-1 # # 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: /data/app/elasticsearch-6.0.1/es1 # # Path to log files: # path.logs: /data/logs/elasticsearch/es1 # # ----------------------------------- Memory ----------------------------------- # # Lock the memory on startup: # #bootstrap.memory_lock: true # # 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: 123.321.45.6 # # Set a custom port for HTTP: # http.port: 9201 transport.tcp.port: 9301 # # For more information, consult the network module documentation. # # --------------------------------- 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: ["123.321.45.6:9301", "123.321.45.6:9302","123.321.45.6:9303"] # # Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1): # discovery.zen.minimum_master_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
5、配置内存
vim /data/app/elasticsearch-6.0.1/es1/config/jvm.options
根据服务配置和 业务需求进行内存的分配即可，我我这里每个节点分配了8g内存。
6、启动服务
权限设置 chown daemon:daemon -R /data/app/elasticsearch-6.0.1/es1
我们使用daemon用户启动es服务，所以需要设置权限
启动命令：/sbin/runuser -s /bin/bash daemon -c " /data/app/elasticsearch-6.0.1/es1/bin/elasticsearch -d"
7、配置剩余两个节点
直接复制es1文件夹为es2，es3，然后修改对应的 配置文件中的节点名称和端口名称即可。注意集群名称要保持一致
8、配置完成以后，按照节点1的启动方式启动即可。
至此，整个安装过程完成。
附录：es配置文件中重要节点说明
#集群名 cluster.name: elasticsearch #节点名 node.name: es_1 #数据文件路径 path.data: /opt/elasticsearch/es1/data #日志文件路径 path.logs: /opt/logs/elasticsearch/es1 #监听地址 #network.host: 10.141.141.29 network.host: es1.jack.com #监听端口 http.port: 9201 #数据通讯端口 transport.tcp.port: 9301 #集群中的节点地址 #discovery.zen.ping.unicast.hosts : ["123.321.45.6:9301", "123.321.45.6:9302", "123.321.45.6:9303"] discovery.zen.ping.unicast.hosts : ["es1.jack.com:9301", " es2.jack.com:9302", " es3.jack.com:9303"] #集群中的至少主节点数(指定集群中的节点中有几个有master资格的节点) discovery.zen.minimum_master_nodes: 2 #是否为master node.master: true #是否为数据节点 node.data: true #设置集群中自动发现其它节点时ping连接超时时间 discovery.zen.fd.ping_timeout: 180s #集群中节点之间ping的次数 discovery.zen.fd.ping_retries: 10 #集群中节点之间ping的时间间隔 discovery.zen.fd.ping_interval: 30s bootstrap.memory_lock: false bootstrap.system_call_filter: false
