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1.安装过程

  环境：软件xshell6，xftp6，JDK1.8安装文件，elasticsearch7.1.1zip.gz文件

1.1.安装JDK1.8

首先是上传JDK1.8的文件，这里通过xft6进行上传

修改JDK的环境变量，path ,JAVA_HOME ,classpath

在root用户下，修改配置文件

# vi /etc/profile

接下来在文件末尾增加如下代码:

export JAVA_HOME=/java/jdk1.8.0_131export PATH=$JAVA_HOME/bin:$PATHexport CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib

然后更新下，这样子不仅root用户的JDK 环境可以配置，elastic search环境也可以配置。（为安装elasticsearch 需要新增加用户做铺垫）

#  source /etc/profile

 

1.2解压文件

接下来解压，上传的elasticsearch压缩文件，这里选择的安装包是elasticsearch-7.1.1-linux-x86_64.tar.gz，

这里是在root环境下进行的解压（也只能如此，博主尝试在elastic用户解压，权限不予许），这里存放的路径是

/usr/local/software/elasticsearch-7.1.1

# tar -zxvf elasticsearch-7.1.1-linux-x86_64.tar.gz

1.3创建新的用户

# 创建用户组groupadd es# 创建用户useradd -g es elastic# 切换到elastic用户su elastic#设置用户密码 ，后续sudo的时候会用到 passwd  elastic

1.4文件赋予权限

# 更改elasticsearch目录拥有者chown elastic:es -R elasticsearch-7.1.1

1.5修改elastic配置文件

#编辑elasticsearch配置文件#vi config/elasticsearch.yml

# ======================== Elasticsearch Configuration =========================## NOTE: Elasticsearch comes with reasonable defaults for most settings.#       Before you set out to tweak and tune the configuration, make sure you#       understand what are you trying to accomplish and the consequences.## The primary way of configuring a node is via this file. This template lists# the most important settings you may want to configure for a production cluster.## Please consult the documentation for further information on configuration options:# https://www.elastic.co/guide/en/elasticsearch/reference/index.html## ---------------------------------- Cluster -----------------------------------## Use a descriptive name for your cluster:#cluster.name: my-application## ------------------------------------ Node ------------------------------------## Use a descriptive name for the node:#node.name: node-1## Add custom attributes to the node:##node.attr.rack: r1## ----------------------------------- Paths ------------------------------------## Path to directory where to store the data (separate multiple locations by comma):#path.data: /path/to/data## Path to log files:#path.logs: /path/to/logs## ----------------------------------- Memory -----------------------------------## Lock the memory on startup:#bootstrap.memory_lock: falsebootstrap.system_call_filter: false ## Make sure that the heap size is set to about half the memory available# on the system and that the owner of the process is allowed to use this# limit.## Elasticsearch performs poorly when the system is swapping the memory.## ---------------------------------- Network -----------------------------------## Set the bind address to a specific IP (IPv4 or IPv6):#network.host: 0.0.0.0## Set a custom port for HTTP:#http.port: 9200## For more information, consult the network module documentation.## --------------------------------- Discovery ----------------------------------## Pass an initial list of hosts to perform discovery when this node is started:# The default list of hosts is ["127.0.0.1", "[::1]"]##discovery.seed_hosts: ["host1", "host2"]## Bootstrap the cluster using an initial set of master-eligible nodes:#cluster.initial_master_nodes: ["node-1"]## For more information, consult the discovery and cluster formation module documentation.## ---------------------------------- Gateway -----------------------------------## Block initial recovery after a full cluster restart until N nodes are started:##gateway.recover_after_nodes: 3## For more information, consult the gateway module documentation.## ---------------------------------- Various -----------------------------------## Require explicit names when deleting indices:##action.destructive_requires_name: truehttp.cors.enabled: truehttp.cors.allow-origin: "*"

1）解决启动elasticsearch的时候，bootstrap的相关报错bootstrap checks failed

      bootstrap.memory_lock: false

      bootstrap.system_call_filter: false 

2）解决外部浏览器可以访问的问题

      http.cors.enabled: true

      http.cors.allow-origin: "*"

     network.host: 0.0.0.0 

3）重要设置

cluster.initial_master_nodes: ["node-1"]

2.安装碰到的问题

2.1报错max virtual memory areas vm.max_map_count [65530] is too low, increase to at least

etc/sysctl.conf 中添加上

vm.max_map_count=655360  保存然后执行

sysctl -p

2.2max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]

#切换到root用户修改vim /etc/security/limits.conf# 在最后面追加下面内容 *表示所有用户，记得其后有空格* hard nofile 65536* soft nofile 65536

2.3sudo命令的配置

# 配置文件位置/etc/sudoers

## Allow root to run any commands anywhere root    ALL=(ALL)       ALL#在这里添加，elsatic是普通用户elastic ALL=(ALL)       ALL

 

3.成功的访问

curl 127.0.0.1:9200

以及外部浏览器的访问

成功截图

 

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