Elasticsearch 7 安装与配置

Elasticsearch 7 安装与配置

1. 下载地址

https://www.elastic.co/cn/downloads/elasticsearch

2. win10安装

配置JDK环境变量

  • JAVA_HOME
    • D:\elasticsearch-7.2.0\jdk\
  • Classpath:
    • .;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\lib\tools.jar;
  • PATH:
    • ;%JAVA_HOME%\bin;%JAVA_HOME%\jre\bin

确认java版本生效

C:\Windows\system32>java -version
openjdk version "12.0.1" 2019-04-16
OpenJDK Runtime Environment (build 12.0.1+12)
OpenJDK 64-Bit Server VM (build 12.0.1+12, mixed mode, sharing)

解压缩Elasticsearch下载的压缩包，执行即可。

3.Centos7.6 安装

Step 1) jdk安装

下载 http://openjdk.java.net/

# tar -zxvf openjdk-11.0.1_linux-x64_bin.tar.gz
# mv jdk-11.0.1 /usr/local/java/
 
# which java
/usr/bin/java
# ll /usr/bin/java
lrwxrwxrwx. 1 root root 22 9月  20 10:55 /usr/bin/java -> /etc/alternatives/java
# ll /etc/alternatives/java
lrwxrwxrwx. 1 root root 29 9月  20 10:55 /etc/alternatives/java -> /usr/java/jdk-12.0.2/bin/java
# alternatives --install /usr/bin/java java /usr/local/java/jdk-11.0.1/bin/java 3
# alternatives --install /usr/bin/javac javac /usr/local/java/jdk-11.0.1/bin/javac 3
# alternatives --install /usr/bin/jar jar /usr/local/java/jdk-11.0.1/bin/jar 3

# alternatives --config java

共有 2 个提供“java”的程序。

  选项    命令
-----------------------------------------------
*+ 1           /usr/java/jdk-12.0.2/bin/java
   2           /usr/local/java/jdk-11.0.1/bin/java

按 Enter 保留当前选项[+]，或者键入选项编号：2
# java –-version

Step 2) 安装Elasticsearch

# yum install perl-Digest-SHA

# wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.3.2-darwin-x86_64.tar.gz

# wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.3.2-darwin-x86_64.tar.gz.sha512

# shasum -a 512 -c elasticsearch-7.3.2-darwin-x86_64.tar.gz.sha512 

# tar -xzf elasticsearch-7.3.2-darwin-x86_64.tar.gz

# cd elasticsearch-7.3.2/

配置 $ES_HOME

Step 3) 配置系统参数

# vi /etc/sysctl.conf
vm.max_map_count=655360
# sysctl -p

# vi /etc/security/limits.conf
* soft nofile 65536
* hard nofile 131072
* soft nproc 65536
* hard nproc 131072

# vi /etc/security/limits.d/20-nproc.conf
elk  soft  nproc  65536

# useradd elk
# id elk
uid=1000(elk) gid=1000(elk) 组=1000(elk)

# mkdir -pv /elk/data /elk/logs
mkdir: 已创建目录 "/elk"
mkdir: 已创建目录 "/elk/data"
# mkdir -pv /elk/logs
mkdir: 已创建目录 "/elk/logs"

# chown -R elk:elk /elk/data/ /elasticsearch-7.3.2/

# vi /elasticsearch-7.3.2/config/elasticsearch.yml 
cluster.name: my-app
node.name: cka-1
bootstrap.memory_lock: false
bootstrap.system_call_filter: false
path.data: /elk/data
path.logs: /elk/logs
network.host: 0.0.0.0
http.port: 9200
cluster.initial_master_nodes: ["cka-1"]

jvm内存修改

vi /elasticsearch-5.5.2/config/jvm.options

-Xms2g  --》修改 
-Xmx2g  --》修改 

# su - elk
$ vi ~/.bash_profile
export JAVA_HOME=/usr/local/java/jdk-11.0.1/
$ echo $JAVA_HOME
/usr/local/java/jdk-11.0.1/

相关报错

    1. seccomp unavailable 错误

解决方法：elasticsearch.yml 配置 bootstrap.memory_lock: false bootstrap.system_call_filter: false

    1. max file descriptors [4096] for elasticsearch process likely too low, increase to at least [65536]

解决方法：修改 /etc/security/limits.conf，配置： hard nofile 80000 soft nofile 80000

    1. max virtual memory areas vm.max_map_count [65530] is too low

解决方法：修改 /etc/sysctl.conf，添加 ： vm.max_map_count = 262144 后 sysctl -p 生效

    1. the default discovery settings are unsuitable…., last least one of [….] must be configured

解决方法：elasticsearch.yml 开启配置： node.name: node-1 cluster.initial_master_nodes: [“node-1”]

    1. 不能用root 运行

org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root

    1. Failure running machine learning native code. This could be due to running on an unsupported OS or distribution, missing OS libraries, or a problem with the temp directory. To bypass this problem by running Elasticsearch without machine learning functionality set [xpack.ml.enabled: false]

增加配置 禁用X-Pack机器学习功能 xpack.ml.enabled: flase xpack.graph.enabled 设置为false禁用X-Pack图形功能。 xpack.ml.enabled 设置为false禁用X-Pack机器学习功能。 xpack.monitoring.enabled 设置为false禁用X-Pack监视功能。 xpack.reporting.enabled 设置为false禁用X-Pack报告功能。 xpack.security.enabled 设置为false禁用X-Pack安全功能。 xpack.watcher.enabled 设置false为禁用观察器。

Step 3) 启动

后台启动 ./elasticsearch -d

启动日志 /elk/logs/my-app.log

yum -y install net-tools

端口查看 netstat -nltp

进程查看 ps -ef grep elastic

测试

curl -X GET http://localhost:9200/

curl -X GET http://192.168.11.203:9200/

防火墙配置 firewall-cmd –permanent –add-port=9200/tcp firewall-cmd –reload

4. 目录结构

目录 配置文件 描述
bin   脚本文件
config elasticsearch.yml 集群配置文件
JDK    
data path.data 数据文件
lib   java类库
logs path.log 日志文件
modules   ES模块
plugins   插件

5. 安装插件

[elk@CKA1 bin]$ ./elasticsearch-plugin list [elk@CKA1 bin]$ ./elasticsearch-plugin install analysis-icu

相关报错

$ ./elasticsearch-plugin install analysis-icu
Exception in thread "main" java.net.UnknownHostException: artifacts.elastic.co
        at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:220)
        at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:403)
        
   报错403 访问域名不通

6.运行多个实例

bin/elasticsearch -E node.name=node1 -E cluster.name=geektime -E path.data=node1_data -d

su -elk
./elasticsearch -E node.name=cka-2 -E cluster.name=my-app -E path.data=cka-2_data -E http.port=9400

7. 相关资源

博客 https://www.elastic.co/cn/blog/

文档 https://www.elastic.co/guide/index.html

视频 https://www.elastic.co/cn/videos/

https://www.elastic.co/guide/en/elastic-stack/current/installing-elastic-stack.html

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