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1、背景
此处简略记录一下,elasticsearch8
和 kibana8
在Centos7
下的单机装置步骤。
2、es 对 jdk 和操作系统的要求等
不同版本的 es
对jdk
和 操作系统
的要求不等,咱们抉择适合的版本,能够通过如下 https://www.elastic.co/cn/support/matrix#matrix_kubernetes 进行确认。
3、装置步骤
3.1 下载对应版本的 es
下载地址:https://www.elastic.co/cn/downloads/elasticsearch
3.2 创立 es 账户
须要为 es
独自创立一个用户,应用 root
账户启动 es
会报错。
[[email protected] ~]# useradd es
[[email protected] ~]# passwd es
[[email protected] es]# tar -zxf elasticsearch-8.4.3-linux-aarch64.tar.gz
[[email protected] es]# chown es -R elasticsearch-8.4.3
[[email protected] es]# su - es
Last login: Sun Oct 30 11:13:55 CST 2022 from 192.168.121.1 on pts/1
[[email protected] ~]$ cd /usr/local/es/elasticsearch-8.4.3
[[email protected] elasticsearch-8.4.3]$ mkdir datas
[[email protected] elasticsearch-8.4.3]$
3.3 批改 es 配置
3.3.1 批改 es 配置
vim config/elasticsearch.yml
# 集群名
cluster.name: es-cluster
# 节点名
node.name: es-node01
# 数据目录
path.data: /usr/local/es/elasticsearch-8.4.3/datas
# 日志目录
path.logs: /usr/local/es/elasticsearch-8.4.3/logs
# es 绑定到的地址
network.host: 192.168.121.138
# es 启动后前端拜访的端口
http.port: 9200
http.cors.enabled: true
http.cors.allow-origin: "*"
3.3.3 批改 jvm 配置
vim config/jvm.options
能够依据理论状况 批改一下 -Xms 和 -Xmx
等参数
3.4 批改系统配置
3.4.1 批改用户关上的文件数限度
- 通过
ulimit -n
查看以后用户可关上的文件数 - 批改用户可关上的文件数限度
vim /etc/security/limits.conf
es soft nofile 65536
es hard nofile 65536
参考链接:https://www.elastic.co/guide/en/elasticsearch/reference/current/setting-system-settings.html#ulimit
3.4.2 禁用 swap
/etc/fstab
正文掉所有行中存在 swap
的行。
# /dev/mapper/cl_fedora-swap none swap defaults 0 0
参考链接:https://www.elastic.co/guide/en/elasticsearch/reference/current/setup-configuration-memory.html
3.4.3 批改虚拟内存
vim /etc/sysctl.conf
在此文件的最初一行减少 vm.max_map_count=262144
。
参考链接:https://www.elastic.co/guide/en/elasticsearch/reference/current/vm-max-map-count.html
3.4.4 进步线程数
vim /etc/security/limits.conf
es soft nproc 65536
es hard nproc 65536
参考文档:https://www.elastic.co/guide/en/elasticsearch/reference/current/max-number-of-threads.html
以上配置配置完之后,重启一下零碎,使系统配置失效。
3.5 放开 9200 端口
firewall-cmd --zone=public --add-port=9200/tcp --permanent
firewall-cmd --reload
4、启动 es
须要应用非 root
账户启动。
bin/elasticsearch
前台启动bin/elasticsearch -d
后盾启动
5、重置 elastic 账户明码
[[email protected] elasticsearch-8.4.3]$ bin/elasticsearch-reset-password --username elastic -i
warning: ignoring JAVA_HOME=/usr/local/jdk8; using bundled JDK
WARNING: Group of file [/usr/local/es/elasticsearch-8.4.3/config/users] used to be [root], but now is [es]
WARNING: Group of file [/usr/local/es/elasticsearch-8.4.3/config/users_roles] used to be [root], but now is [es]
This tool will reset the password of the [elastic] user.
You will be prompted to enter the password.
Please confirm that you would like to continue [y/N]y
Enter password for [elastic]:
Re-enter password for [elastic]:
Password for the [elastic] user successfully reset.
[[email protected] elasticsearch-8.4.3]$
6、拜访 es
呈现如下信息,阐明拜访胜利。
"name": "es-node01",
"cluster_name": "es-cluster",
"cluster_uuid": "OJsQ_w1ZTKWepM-u8-U-tg",
"version": {
"number": "8.4.3",
"build_flavor": "default",
"build_type": "tar",
"build_hash": "42f05b9372a9a4a470db3b52817899b99a76ee73",
"build_date": "2022-10-04T07:17:24.662462378Z",
"build_snapshot": false,
"lucene_version": "9.3.0",
"minimum_wire_compatibility_version": "7.17.0",
"minimum_index_compatibility_version": "7.0.0"
},
"tagline": "You Know, for Search"
}
7、kibana 连贯到 es
7.1 批改 kibana 配置
vim /usr/local/kibana/kibana-8.4.3/config/kibana.yml
server.port: 5601
server.host: "192.168.121.138"
# elasticsearch.hosts: ["https://192.168.121.138:9200"] 和 es 用户民明码都不必配置
留神:
如果上方的配置中减少了 如下配置 (elasticsearch.username
和 elasticsearch.password
) 或者 elasticsearch.hosts
) 则可能呈现如下异样
`[2022-10-30T18:31:29.858+08:00][ERROR][elasticsearch-service] Unable to retrieve version information from Elasticsearch nodes. self signed certificate in certificate chain`
解决方案:
执行如下命令
bin/kibana-setup --enrollment-token <enrollment-token>
<enrollment-token>
通过如下命令获取:bin/elasticsearch-create-enrollment-token --scope kibana
参考链接:https://www.elastic.co/guide/en/elasticsearch/reference/current/configuring-stack-security.html#stack-start-with-security
7.2 启动 kibana
bin/kibana
从上图中能够 拜访地址为 http://192.168.121.138:5601/?code=634917
7.3 配置 kibana
点击蓝色的按钮,就开始配置 elastic 了。
8、参考链接
- https://www.elastic.co/guide/en/elasticsearch/reference/current/install-elasticsearch.html
- https://www.elastic.co/guide/en/elasticsearch/reference/current/system-config.html
- https://www.elastic.co/guide/en/elasticsearch/reference/current/configuring-stack-security.html#stack-start-with-security