elasticsearch-7.17.16阿里云部署

1、上传包到服务器

将下载好的 elasticsearch-7.17.16-linux-x86_64.tar.gz 文件放到 /usr/local/soft 目录下

tar -zxvf elasticsearch-7.17.16-linux-x86_64.tar.gz		# 解压

配置环境变量：

vim /etc/profile

# 如果/etc/bashrc文件不可编辑，需要修改为可编辑
chmod -v u+w /etc/environment

# 在最后一行加上
export ES_JAVA_HOME=/usr/local/soft/elasticsearch-7.17.16/jdk

source /etc/environment

注意事项：

• 生效时间：新开终端生效，或者手动 source /etc/environment 生效

• 生效期限：永久有效

• 生效范围：对所有用户有效

2、修改主配置文件 elasticsearch.yml：

cd /usr/local/soft/elasticsearch-7.17.16

vim config/elasticsearch.yml

# ES开启远程访问
network.host: 0.0.0.0

# 设置主节点（一个集群设一个就行）
node.master: true

# 配置发现设置
discovery.seed_hosts: ["127.0.0.1"]		# "127.0.0.1"可以改为外网ip
cluster.initial_master_nodes: ["node-1"]

# 跨域问题
http.cors.enabled: true
http.cors.allow-origin: "*"

# 允许请求头携带密码访问
http.cors.allow-headers: Authorization

# 开启密码访问
xpack.security.enabled: true
xpack.security.transport.ssl.enabled: true

为了方便直接复制下面这一块

network.host: 0.0.0.0
node.name: "node-1"
node.master: true
http.cors.enabled: true
http.cors.allow-origin: "*"
http.cors.allow-headers: Authorization
xpack.security.enabled: true
xpack.security.transport.ssl.enabled: false
discovery.type: single-node

3、修改JVM配置：

修改config/jvm.options配置文件，调整JVM堆内存大小

vim config/jvm.options
-Xms1g
-Xmx1g

• 注意：

启动 elasticsearch 不能使用 root 用户，所以先创建普通用户

sudo useradd -m -s /bin/bash username	# 创建

sudo passwd username	# 设置密码

sudo usermod -aG root username	# 添加该用户到管理员组

# 切换到root用户
chmod -R g+rwx /usr/local/soft/elasticsearch-7.17.16	# 赋予组对该目录及其子目录的读写权

4、启动（切换到创建的用户上启动）：

# 在/usr/local/soft/elasticsearch-7.17.16目录下
bin/elasticsearch

# 后台启动
bin/elasticsearch -d

常见启动报错：

max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

# 编辑/etc/sysctl.conf文件，在最后添加一行
vim /etc/sysctl.conf
vm.max_map_count=262144

# 重启
sudo sysctl -p

设置密码：

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

bin/elasticsearch-setup-passwords interactive 

[xunlu@xunlu-20231103 elasticsearch]$ bin/elasticsearch-setup-passwords interactive
Initiating the setup of passwords for reserved users elastic,apm_system,kibana,kibana_system,logstash_system,beats_system,remote_monitoring_user.
You will be prompted to enter passwords as the process progresses.
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_system]: 
Reenter password for [kibana_system]: 
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]: 
Changed password for user [apm_system]
Changed password for user [kibana_system]
Changed password for user [kibana]
Changed password for user [logstash_system]
Changed password for user [beats_system]
Changed password for user [remote_monitoring_user]
Changed password for user [elastic]

4、分词插件安装

• IK分词器：Releases · infinilabs/analysis-ik (github.com)
• pinyin分词器：Releases · infinilabs/analysis-pinyin (github.com)

将zip压缩包上传到 plugins 目录

unzip elasticsearch-analysis-ik-7.17.16.zip -d analysis-ik		# 解压

rm elasticsearch-analysis-ik-7.17.16.zip		# 删除压缩包

测试分词：

GET _analyze
{
	"analyzer": "ik_max_word",
	"text": "原神生日会"
}