elasticsearch5.5安装 单机版
官方文档:https://www.elastic.co/guide/en/elasticsearch/reference/5.5/index.html
一、Elastic基本功能
Elasticsearch 是一个实时分布式搜索和分析引擎，一般用于全文搜索、结构化搜索，分析或者三者混用。
它的底层是基于Apache Lucene（TM）的开源搜索引擎，但是lucene只是一个库，需要java开发然后集成到应用。
Elasticsearch的特性描述：
分布式实时文件存储，每个字段都能被索引并且可以被搜索
分布式的实时分析搜索引擎
可以扩展到上百台服务器，处理PB级结构化或者非结构化数据
二、 Elastic 安装准备
centos7.9
jdk8
elasticsearch5.5
1. java环境需要安装 jdk8,对应下载 tar包
官网链接：http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
内部公司已存放 softpkgxxx/softwar/java/
##### java安装：自行安装 可以参考。
tar zxvf jdk-8u152-linux-x64.tar.gz
#解压完成后，配置JAVA_HOME的环境变量
[root@master ~]# vim /etc/profile
#我一般是习惯放在文件最后
#===============JAVA_HOME======================
#这些环境变量配置的就是刚刚tar包解压之后的目录下
export JAVA_HOME=/usr/local/jdk1.8.0_152
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin
"/etc/profile" 83L, 1972C written
[root@master ~]# source /etc/profile
#查看一下版本是否正确
[root@master ~]# java -version
java version "1.8.0_152"
Java(TM) SE Runtime Environment (build 1.8.0_152-b16)
Java HotSpot(TM) 64-Bit Server VM (build 25.152-b16, mixed mode)
=================================================
到目前为止，jdk8安装完毕
####
2.安装elastic 下载解压即可
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.5.1.zip
--2018-03-27 11:29:36-- https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.5.1.zip
Resolving artifacts.elastic.co (artifacts.elastic.co)... 184.73.245.233, 184.73.156.41, 54.235.82.130, ...
Connecting to artifacts.elastic.co (artifacts.elastic.co)|184.73.245.233|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 33511694 (32M) [application/zip]
Saving to: ‘elasticsearch-5.5.1.zip’
mv elasticsearch-5.5.1.zip /usr/local/
unzip elasticsearch-5.5.1.zip
cd /usr/local/elasticsearch-5.5.1
3.注 请核对系统参数
#### 注提前准备 开始
3.1错误：RROR: [2] bootstrap checks failed
[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
解决方法如下：
对于问题[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
修改/etc/security/limits.conf文件，添加或修改如下行：
vim /etc/security/limits.conf
* hard nofile 65536
* soft nofile 65536
3.2对于问题[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
修改 /etc/sysctl.conf 文件，添加 “vm.max_map_count”设置
vim /etc/sysctl.conf
vm.max_map_count = 262144
设置后使用如下命令使其生效：
sysctl -p
3.3 报错 rootxxx权限问题,默认 不能使用root启动;我这边 创建elastic用户
useradd elastic
passwd elastic
chown elastic.elastic /usr/local/elasticsearch-5.5.1 -R
3.4 允许远程访问，添加一下一列
cat config/elasticsearch.yml |grep -v ^#
network.host: 0.0.0.0
#xpack.security.enabled: true #### 为后续 开启账号认证使用的。
#### 注
安装成功后默认为开启权限验证模块,默认会创建三个用户：elastic,kibana,logstash_system，默认密码均问changeme
####
###### 注 提前准备 结束
4.运行 elastic
su - elastic
cd /usr/local/elasticsearch-5.5.1
./elasticsearch
####查看是否有错误， 若无 退出后 重新执行 后台运行。
./elasticsearch -d
## 本次测试:
curl 'http://localhost:9200/?pretty' ####查看是否有数据显示
curl -i -XGET 'localhost:9200/_count?pretty'
https://www.cnblogs.com/Kid-Zhou/p/9088772.html
三、elasticsearch5.5 安装 X-Pack
1.关闭ElasticSearch服务
需要关闭Elasticsearch 服务，如果已经启动的话，则安装安装x-pack失败。
2、ElasticSearch5.x安装x-pack
安装过程中遇到选项直接Y过去就可以了
# bin/elasticsearch-plugin install x-pack
++++++++++++++
for descriptions of what these permissions allow and the associated risks.
Continue with installation? [y/N]y
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ WARNING: plugin forks a native controller @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
This plugin launches a native controller that is not subject to the Java
security manager nor to system call filters.
Continue with installation? [y/N]y
-> Installed x-pack
++++++++++++++
四、安装 kibana
wget https://artifacts.elastic.co/downloads/kibana/kibana-5.5.0-linux-x86_64.tar.gz
tar -zvxf kibana-5.5.0-linux-x86_64.tar.gz
cd kibana-5.5.0-linux-x86_64
vim kibana-5.5.0-linux-x86_64/config/kibana.yml
修改配置文件:
server.host: "0.0.0.0"
elasticsearch.url: "http://localhost:9200"
elasticsearch.username: "kibana"
elasticsearch.password: "changeme"
在线安装X-Pack for Kibana：
cd kibana-5.5.0-linux-x86_64/bin
./kibana-plugin install x-pack
+++++++++++++++++++++++++++++++++++++++++
Attempting to transfer from x-pack
Attempting to transfer from https://artifacts.elastic.co/downloads/kibana-plugins/x-pack/x-pack-5.5.0.zip
Transferring 119276235 bytes....................
Transfer complete
Retrieving metadata from plugin archive
Extracting plugin archive
Extraction complete
Optimizing and caching browser bundles...
Plugin installation complete
++++++++++++++++++++++++++++++++++++++
启动 kibana
cd kibana-5.5.0-linux-x86_64/
nohup bin/kibana &
++++++++++++
nohup: 忽略输入并把输出追加到"nohup.out"
++++++++
然后在浏览器中访问http://xxxxxxip:5601即可查看Kibana界面
默认用户名和密码如下：
用户名：elastic
密码：changeme
####
修改密码:
在devtools 工具里， 如修改kibana 密码为 kibana
####
PUT _xpack/security/user/kibana/_password
{
"password": "kibana"
}
####
其他参考相关
集群搭建
https://www.jianshu.com/p/53f41f4cbf70?utm_campaign=maleskine&utm_content=note&utm_medium=seo_notes&utm_source=recommendation
elasticserach辅助工具:安装elasticsearch-head插件
https://www.cnblogs.com/Kid-Zhou/p/9088772.html
####
参考url:
https://cloud.tencent.com/developer/article/1994038
https://www.jianshu.com/p/53f41f4cbf70?utm_campaign=maleskine&utm_content=note&utm_medium=seo_notes&utm_source=recommendation
