ELK之Elasticsearch7.17.4安装（yum方式）和三节点集群配置

2023-06-29 02:29| 来源: 网络整理| 查看: 265

一、下载Elasticsearch7.17.4 的rpm包

下载地址： https://www.elastic.co/cn/downloads/past-releases/elasticsearch-7-17-4 在这里插入图片描述

二、建立elasticsearch的yum源

vim /etc/yum.repos.d/es.repo

[elasticsearch] name=Elasticsearch repository for 7.x packages baseurl=https://artifacts.elastic.co/packages/7.x/yum gpgcheck=0 gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch enabled=1 autorefresh=1 type=rpm-md

刷新yum cache

[root@sg softs]# yum makecache 已加载插件：fastestmirror Loading mirror speeds from cached hostfile base | 3.6 kB 00:00:00 elasticsearch | 1.3 kB 00:00:00 epel | 4.7 kB 00:00:00 extras | 2.9 kB 00:00:00 updates | 2.9 kB 00:00:00 (1/15): base/7/x86_64/other_db | 2.6 MB 00:00:00 (2/15): base/7/x86_64/filelists_db | 7.2 MB 00:00:00 (3/15): elasticsearch/primary | 431 kB 00:00:00 (4/15): epel/x86_64/filelists_db | 12 MB 00:00:00 (5/15): epel/x86_64/updateinfo | 1.0 MB 00:00:00 (6/15): epel/x86_64/prestodelta | 909 B 00:00:00 (7/15): elasticsearch/other | 58 kB 00:00:00 (8/15): epel/x86_64/other_db | 3.4 MB 00:00:00 (9/15): epel/x86_64/primary_db | 7.0 MB 00:00:00 (10/15): extras/7/x86_64/filelists_db | 277 kB 00:00:00 (11/15): updates/7/x86_64/filelists_db | 8.7 MB 00:00:00 (12/15): extras/7/x86_64/other_db | 148 kB 00:00:00 (13/15): updates/7/x86_64/primary_db | 16 MB 00:00:00 (14/15): updates/7/x86_64/other_db | 1.0 MB 00:00:00 (15/15): elasticsearch/filelists | 44 MB 00:00:04 elasticsearch 1348/1348 elasticsearch 1348/1348 elasticsearch 1348/1348 元数据缓存已建立三、安装

执行命令yum install -y elasticsearch-7.17.4-x86_64.rpm

[root@nb002 tools]# yum install -y elasticsearch-7.17.4-x86_64.rpm 已加载插件：fastestmirror 正在检查 elasticsearch-7.17.4-x86_64.rpm: elasticsearch-7.17.4-1.x86_64 elasticsearch-7.17.4-x86_64.rpm 将被安装正在解决依赖关系 --> 正在检查事务 ---> 软件包 elasticsearch.x86_64.0.7.17.4-1 将被安装 --> 解决依赖关系完成依赖关系解决 ==================================================================================================================================================================================== Package 架构版本源大小 ==================================================================================================================================================================================== 正在安装: elasticsearch x86_64 7.17.4-1 /elasticsearch-7.17.4-x86_64 488 M 事务概要 ==================================================================================================================================================================================== 安装 1 软件包总计：488 M 安装大小：488 M Downloading packages: Running transaction check Running transaction test Transaction test succeeded Running transaction Creating elasticsearch group... OK Creating elasticsearch user... OK 正在安装 : elasticsearch-7.17.4-1.x86_64 1/1 ### NOT starting on installation, please execute the following statements to configure elasticsearch service to start automatically using systemd sudo systemctl daemon-reload sudo systemctl enable elasticsearch.service ### You can start elasticsearch service by executing sudo systemctl start elasticsearch.service warning: usage of JAVA_HOME is deprecated, use ES_JAVA_HOME Future versions of Elasticsearch will require Java 11; your Java version from [/usr/local/jdk1.8.0_331/jre] does not meet this requirement. Consider switching to a distribution of Elasticsearch with a bundled JDK. If you are already using a distribution with a bundled JDK, ensure the JAVA_HOME environment variable is not set. Created elasticsearch keystore in /etc/elasticsearch/elasticsearch.keystore 验证中 : elasticsearch-7.17.4-1.x86_64 1/1 已安装: elasticsearch.x86_64 0:7.17.4-1 完毕！四、设置开机启动 [root@nb002 tools]# systemctl daemon-reload [root@nb002 tools]# systemctl enable elasticsearch.service Created symlink from /etc/systemd/system/multi-user.target.wants/elasticsearch.service to /usr/lib/systemd/system/elasticsearch.service. 五、启停命令

默认是安装到了/usr/share/elasticsearch位置

# 启动 systemctl start elasticsearch.service # 停止 systemctl stop elasticsearch.service

启动后查看进程：

netstat -anpt | grep -e 9200 netstat -anpt | grep -e 9300

在浏览器访问，http://你的IP:9200 在这里插入图片描述其余2台服务器均按上述方式进行安装ES

六、集群安装

说明：需要3台机器内网互通（用外网ip的话需要对应端口互通9200,9300；本机启动3台虚拟机应该无此问题，节点network.host都可以配置为localhost或者0.0.0.0）

yum安装后的默认配置文件在这个位置：/etc/elasticsearch/elasticsearch.yml

6.1 三个节点配置如下：

elk1节点：

cluster.name: cvec-elk node.name: elk1 node.data: true path.data: /data/elasticsearch path.logs: /data/elasticsearch/log network.host: 172.28.242.12 http.port: 9200 discovery.seed_hosts: - elk1 - 172.28.242.14:9300 - 172.28.242.15 cluster.initial_master_nodes: ["elk1", "elk2", "elk3"]

elk2节点：

cluster.name: cvec-elk node.name: elk2 node.data: true path.data: /data/elasticsearch path.logs: /data/elasticsearch/log network.host: 172.28.242.14 http.port: 9200 discovery.seed_hosts: - elk1 - 172.28.242.14:9300 - 172.28.242.15 cluster.initial_master_nodes: ["elk1", "elk2", "elk3"]

elk3节点：

cluster.name: cvec-elk node.name: elk3 node.data: true path.data: /data/elasticsearch path.logs: /data/elasticsearch/log network.host: 172.28.242.15 http.port: 9200 discovery.seed_hosts: - elk1 - 172.28.242.14:9300 - 172.28.242.15 cluster.initial_master_nodes: ["elk1", "elk2", "elk3"] 6.2 如果修改了data log目录，则需要给新设置的目录赋权限

chomd +777 目录

chmod +777 /data/elasticsearch chmod +777 /data/elasticsearch/log 6.3 查看集群健康状态（我这里已经green了）

curl -X GET “localhost:9200/_cat/health?v”

[root@sg ~]# curl -X GET "172.28.242.15:9200/_cat/health?v" epoch timestamp cluster status node.total node.data shards pri relo init unassign pending_tasks max_task_wait_time active_shards_percent 1656052660 06:37:40 cvec-elk green 6.4查看集群节点

curl -X GET “localhost:9200/_cat/nodes?v”

[root@sg ~]# curl -X GET "172.28.242.15:9200/_cat/nodes?v" ip heap.percent ram.percent cpu load_1m load_5m load_15m node.role master name 172.28.242.14 43 97 9 2.37 1.19 0.75 cdfhilmrstw * elk2 172.28.242.15 12 99 4 0.33 0.31 0.23 cdfhilmrstw - elk3 172.28.242.12 33 99 8 0.54 0.85 0.82 cdfhilmrstw - elk1

可以看到elk2为主节点（带星号），这与在head插件上看到的是一致的：在这里插入图片描述自此，yum方式安装elasticsearch 3节点集群安装配置完毕。

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