ElasticSearch 6.x 学习笔记：1.下载安装与配置

叁歲伎倆 2022-05-17 11:09 181阅读 0赞

公司目前用的ElasticSearch 5.x  
这里转载一篇ElasticSearch 6.x版本的安装及配置教程，方便日后查阅。

原文地址：[ElasticSearch 6.x 学习笔记：1.下载安装与配置][ElasticSearch 6.x _1.]，转载烦请注明原文地址。

### 1. 安装配置JDK 8 ###

（1）下载并解压缩

[root@node1 ~]# tar -zxvf jdk-8u112-linux-x64.tar.gz -C /opt

（2）编辑环境变量  
vi /etc/profile.d/custom.sh

[root@node1 ~]# vi /etc/profile.d/custom.sh
    [root@node1 ~]# cat /etc/profile.d/custom.sh
    #!/bin/bash
    #java path
    export JAVA_HOME=/opt/jdk1.8.0_112
    export PATH=$PATH:$JAVA_HOME/bin
    export CLASSPATH=.:$CLASSPATH:$JAVA_HOME/lib

（3）生效

[root@node1 ~]# source /etc/profile.d/custom.sh

（4）查看JDK版本

[root@node1 ~]# java -version
    java version "1.8.0_112"
    Java(TM) SE Runtime Environment (build 1.8.0_112-b15)
    Java HotSpot(TM) 64-Bit Server VM (build 25.112-b15, mixed mode)
    [root@node1 ~]#

### 2. 创建用户 ###

从5.0开始，ElasticSearch 安全级别提高了，不允许采用root帐号启动，所以我们要添加一个用户。

**（1）创建bigdata 用户组**

[root@node1 ~]# groupadd bigdata

**（2）创建用户es**

[root@node1 ~]# useradd es
    [root@node1 ~]# passwd es
    Changing password for user es.
    New password: 
    BAD PASSWORD: The password is shorter than 8 characters
    Retype new password: 
    passwd: all authentication tokens updated successfully.
    [root@node1 ~]#

**（3）将es用户添加到bigdata组**

[root@node1 ~]# usermod -G bigdata es

**（4）设置sudo权限**

[root@node1 ~]# visudo

找到`root ALL=(ALL) ALL`一行，添加es用户，如下。

## Allow root to run any commands anywhere
    root    ALL=(ALL)       ALL
    es      ALL=(ALL)       ALL

**（5）切换用户**

[root@node1 ~]# su es
    [es@node1 root]$ cd
    [es@node1 ~]$

### 3. ElasticSearch 6.x 软件包下载 ###

**（1）ElasticSearch官网**  
[https://www.elastic.co/cn/downloads][https_www.elastic.co_cn_downloads]  
![这里写图片描述][SouthEast]

**（2）下载ElasticSearch**  
[https://www.elastic.co/downloads/elasticsearch][https_www.elastic.co_downloads_elasticsearch]  
![这里写图片描述][SouthEast 1]

[es@node1 ~]$ wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.1.1.tar.gz
    --2018-01-06 08:24:06--  https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.1.1.tar.gz
    Resolving artifacts.elastic.co (artifacts.elastic.co)... 54.225.188.6, 54.243.108.41, 184.72.218.26, ...
    Connecting to artifacts.elastic.co (artifacts.elastic.co)|54.225.188.6|:443... connected.
    HTTP request sent, awaiting response... 200 OK
    Length: 28462503 (27M) [application/x-gzip]
    Saving to: ‘elasticsearch-6.1.1.tar.gz.1’
    
    100%[===================================================================================================================================================>] 28,462,503   232KB/s   in 3m 33s 
    
    2018-01-06 08:27:42 (130 KB/s) - ‘elasticsearch-6.1.1.tar.gz.1’ saved [28462503/28462503]
    
    [es@node1 ~]$

**（3）解压缩**  
`tar -zxvf elasticsearch-6.1.1.tar.gz`

[es@node1 ~]$ tar -zxvf elasticsearch-6.1.1.tar.gz
    
    
    [es@node1 ~]$ sudo mv elasticsearch-6.1.1 /opt

**（4）修改目录权限**  
更改elasticsearch-6.1.1文件夹以及内部文件的所属用户为es, 用户组组为bigdata，-R表示逐级（N层目录）

[es@node1 ~]$ sudo chown -R es:bigdata /opt/elasticsearch-6.1.1
    [es@node1 ~]$ ll /opt/elasticsearch-6.1.1
    total 220
    drwxr-xr-x  2 es bigdata   4096 Jan  6 08:35 bin
    drwxr-xr-x  2 es bigdata     75 Dec 17 15:24 config
    drwxr-xr-x  2 es bigdata   4096 Dec 17 15:24 lib
    -rw-r--r--  1 es bigdata  11358 Dec 17 15:22 LICENSE.txt
    drwxr-xr-x 15 es bigdata    272 Dec 17 15:24 modules
    -rw-r--r--  1 es bigdata 191887 Dec 17 15:24 NOTICE.txt
    drwxr-xr-x  2 es bigdata      6 Dec 17 15:24 plugins
    -rw-r--r--  1 es bigdata   9326 Dec 17 15:22 README.textile
    [es@node1 ~]$

### 4. ElasticSearch 配置 ###

**（1）修改elasticsearch.yml**

[es@node1 elasticsearch-6.1.1]$ vi config/elasticsearch.yml

修改network.host和http.port

# Set the bind address to a specific IP (IPv4 or IPv6):
    #
    network.host: 192.168.80.131
    #
    # Set a custom port for HTTP:
    #
    http.port: 9200

保存退出。

**（2）修改/etc/sysctl.conf**  
切换到root用户，

[root@node1 elasticsearch-6.1.1]# vi /etc/sysctl.conf

添加内容如下：

vm.max_map_count=262144

用命令sysctl -p 生效

[root@node1 ~]# sysctl -p
    net.ipv4.ip_forward = 0
    net.ipv4.conf.default.rp_filter = 1
    net.ipv4.conf.default.accept_source_route = 0
    kernel.sysrq = 0
    kernel.core_uses_pid = 1
    net.ipv4.tcp_syncookies = 1
    kernel.msgmnb = 65536
    kernel.msgmax = 65536
    kernel.shmmax = 68719476736
    kernel.shmall = 4294967296
    vm.max_map_count = 262144
    [root@node1 ~]#

**（3）修改文件/etc/security/limits.conf**

[root@node1 logs]# vi /etc/security/limits.conf

添加如下内容

* hard nofile 65536
    * soft nofile 65536
    
    * soft nproc 2048
    * hard nproc 4096
    
    # End of file

### 5.ElasticSearch启动与停止 ###

**（1）直接启动**

[es@node1 elasticsearch-6.1.1]$ bin/elasticsearch
    [2018-01-06T08:53:21,796][INFO ][o.e.n.Node               ] [] initializing ...
    [2018-01-06T08:53:21,941][INFO ][o.e.e.NodeEnvironment    ] [cNWkQjt] using [1] data paths, mounts [[/ (rootfs)]], net usable_space [13.8gb], net total_space [21.9gb], types [rootfs]
    [2018-01-06T08:53:21,941][INFO ][o.e.e.NodeEnvironment    ] [cNWkQjt] heap size [1007.3mb], compressed ordinary object pointers [true]
    [2018-01-06T08:53:21,945][INFO ][o.e.n.Node               ] node name [cNWkQjt] derived from node ID [cNWkQjt9SzKFNtyx8IIu-A]; set [node.name] to override
    [2018-01-06T08:53:21,945][INFO ][o.e.n.Node               ] version[6.1.1], pid[2752], build[bd92e7f/2017-12-17T20:23:25.338Z], OS[Linux/3.10.0-514.el7.x86_64/amd64], JVM[Oracle Corporation/Java HotSpot(TM) 64-Bit Server VM/1.8.0_112/25.112-b15]
    [2018-01-06T08:53:21,946][INFO ][o.e.n.Node               ] JVM arguments [-Xms1g, -Xmx1g, -XX:+UseConcMarkSweepGC, -XX:CMSInitiatingOccupancyFraction=75, -XX:+UseCMSInitiatingOccupancyOnly, -XX:+AlwaysPreTouch, -Xss1m, -Djava.awt.headless=true, -Dfile.encoding=UTF-8, -Djna.nosys=true, -XX:-OmitStackTraceInFastThrow, -Dio.netty.noUnsafe=true, -Dio.netty.noKeySetOptimization=true, -Dio.netty.recycler.maxCapacityPerThread=0, -Dlog4j.shutdownHookEnabled=false, -Dlog4j2.disable.jmx=true, -XX:+HeapDumpOnOutOfMemoryError, -Des.path.home=/opt/elasticsearch-6.1.1, -Des.path.conf=/opt/elasticsearch-6.1.1/config]
    [2018-01-06T08:53:23,614][INFO ][o.e.p.PluginsService     ] [cNWkQjt] loaded module [aggs-matrix-stats]
    [2018-01-06T08:53:23,615][INFO ][o.e.p.PluginsService     ] [cNWkQjt] loaded module [analysis-common]
    [2018-01-06T08:53:23,615][INFO ][o.e.p.PluginsService     ] [cNWkQjt] loaded module [ingest-common]
    [2018-01-06T08:53:23,615][INFO ][o.e.p.PluginsService     ] [cNWkQjt] loaded module [lang-expression]
    [2018-01-06T08:53:23,615][INFO ][o.e.p.PluginsService     ] [cNWkQjt] loaded module [lang-mustache]
    [2018-01-06T08:53:23,615][INFO ][o.e.p.PluginsService     ] [cNWkQjt] loaded module [lang-painless]
    [2018-01-06T08:53:23,616][INFO ][o.e.p.PluginsService     ] [cNWkQjt] loaded module [mapper-extras]
    [2018-01-06T08:53:23,616][INFO ][o.e.p.PluginsService     ] [cNWkQjt] loaded module [parent-join]
    [2018-01-06T08:53:23,616][INFO ][o.e.p.PluginsService     ] [cNWkQjt] loaded module [percolator]
    [2018-01-06T08:53:23,616][INFO ][o.e.p.PluginsService     ] [cNWkQjt] loaded module [reindex]
    [2018-01-06T08:53:23,616][INFO ][o.e.p.PluginsService     ] [cNWkQjt] loaded module [repository-url]
    [2018-01-06T08:53:23,617][INFO ][o.e.p.PluginsService     ] [cNWkQjt] loaded module [transport-netty4]
    [2018-01-06T08:53:23,617][INFO ][o.e.p.PluginsService     ] [cNWkQjt] loaded module [tribe]
    [2018-01-06T08:53:23,618][INFO ][o.e.p.PluginsService     ] [cNWkQjt] no plugins loaded
    [2018-01-06T08:53:26,588][INFO ][o.e.d.DiscoveryModule    ] [cNWkQjt] using discovery type [zen]
    [2018-01-06T08:53:27,618][INFO ][o.e.n.Node               ] initialized
    [2018-01-06T08:53:27,619][INFO ][o.e.n.Node               ] [cNWkQjt] starting ...
    [2018-01-06T08:53:27,836][INFO ][o.e.t.TransportService   ] [cNWkQjt] publish_address {192.168.80.131:9300}, bound_addresses {192.168.80.131:9300}
    [2018-01-06T08:53:27,860][INFO ][o.e.b.BootstrapChecks    ] [cNWkQjt] bound or publishing to a non-loopback or non-link-local address, enforcing bootstrap checks
    [2018-01-06T08:53:30,984][INFO ][o.e.c.s.MasterService    ] [cNWkQjt] zen-disco-elected-as-master ([0] nodes joined), reason: new_master {cNWkQjt}{cNWkQjt9SzKFNtyx8IIu-A}{eRRknS3vQ52ffJA8I2u9iQ}{192.168.80.131}{192.168.80.131:9300}
    [2018-01-06T08:53:30,992][INFO ][o.e.c.s.ClusterApplierService] [cNWkQjt] new_master {cNWkQjt}{cNWkQjt9SzKFNtyx8IIu-A}{eRRknS3vQ52ffJA8I2u9iQ}{192.168.80.131}{192.168.80.131:9300}, reason: apply cluster state (from master [master {cNWkQjt}{cNWkQjt9SzKFNtyx8IIu-A}{eRRknS3vQ52ffJA8I2u9iQ}{192.168.80.131}{192.168.80.131:9300} committed version [1] source [zen-disco-elected-as-master ([0] nodes joined)]])
    [2018-01-06T08:53:31,073][INFO ][o.e.h.n.Netty4HttpServerTransport] [cNWkQjt] publish_address {192.168.80.131:9200}, bound_addresses {192.168.80.131:9200}
    [2018-01-06T08:53:31,073][INFO ][o.e.n.Node               ] [cNWkQjt] started
    [2018-01-06T08:53:31,094][INFO ][o.e.g.GatewayService     ] [cNWkQjt] recovered [0] indices into cluster_state

**（2）停止**  
ctrl+c停止。

^C[2018-01-06T08:55:24,513][INFO ][o.e.n.Node               ] [cNWkQjt] stopping ...
    [2018-01-06T08:55:24,568][INFO ][o.e.n.Node               ] [cNWkQjt] stopped
    [2018-01-06T08:55:24,569][INFO ][o.e.n.Node               ] [cNWkQjt] closing ...
    [2018-01-06T08:55:24,585][INFO ][o.e.n.Node               ] [cNWkQjt] closed
    [es@node1 elasticsearch-6.1.1]$

**（3）后台运行**  
可以通过参数-d后台运行

[es@node1 elasticsearch-6.1.1]$ bin/elasticsearch -d

**（4）查询进程**

[es@node1 elasticsearch-6.1.1]$ jps
    3120 Elasticsearch
    3135 Jps
    [es@node1 elasticsearch-6.1.1]$

### 6. 验证 ###

（1）使用curl验证

[es@node1 elasticsearch-6.1.1]$ curl http://192.168.80.131:9200
    {
      "name" : "cNWkQjt",
      "cluster_name" : "elasticsearch",
      "cluster_uuid" : "Kd_e-tqxSx20dl_HjAt1ZQ",
      "version" : {
        "number" : "6.1.1",
        "build_hash" : "bd92e7f",
        "build_date" : "2017-12-17T20:23:25.338Z",
        "build_snapshot" : false,
        "lucene_version" : "7.1.0",
        "minimum_wire_compatibility_version" : "5.6.0",
        "minimum_index_compatibility_version" : "5.0.0"
      },
      "tagline" : "You Know, for Search"
    }
    [es@node1 elasticsearch-6.1.1]$

（2）浏览器验证  
[http://node1:9200/][http_node1_9200]

![这里写图片描述][SouthEast 2]  
如果在Windows平台通过浏览器打开，需要配置hosts。编辑C:\\Windows\\System32\\drivers\\etc\\hosts  
添加

192.168.80.131  node1

### 6.问题解决 ###

**（1）jps看不到Java进程**

[es@node1 elasticsearch-6.1.1]$ bin/elasticsearch -d
    [es@node1 elasticsearch-6.1.1]$ jps
    [es@node1 elasticsearch-6.1.1]$ jps
    [es@node1 elasticsearch-6.1.1]$ ps -aux|grep elasticsearch
    es         2930  125 65.2 3627480 1218920 pts/0 Sl   09:33   0:15 /opt/jdk1.8.0_112/bin/java -Xms1g -Xmx1g -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -XX:+AlwaysPreTouch -server -Xss1m -Djava.awt.headless=true -Dfile.encoding=UTF-8 -Djna.nosys=true -XX:-OmitStackTraceInFastThrow -Dio.netty.noUnsafe=true -Dio.netty.noKeySetOptimization=true -Dio.netty.recycler.maxCapacityPerThread=0 -Dlog4j.shutdownHookEnabled=false -Dlog4j2.disable.jmx=true -XX:+HeapDumpOnOutOfMemoryError -Des.path.home=/opt/elasticsearch-6.1.1 -Des.path.conf=/opt/elasticsearch-6.1.1/config -cp /opt/elasticsearch-6.1.1/lib/* org.elasticsearch.bootstrap.Elasticsearch -d
    es         2998  0.0  0.0 112660   968 pts/0    S+   09:33   0:00 grep --color=auto elasticsearch
    [es@node1 elasticsearch-6.1.1]$

查找原因

[es@node1 ~]$ ll /tmp
    total 0
    drwxr-xr-x 2 1000 1000   6 Jan  5 10:28 hsperfdata_es
    drwxr-xr-x 2 root root   6 Jan  6 08:56 hsperfdata_root
    drwxrwxr-x 2 1000 1000   6 Jan  5 10:21 jna-3246
    drwxrwxr-x 3 1000 1000  32 Jan  5 09:40 npm-2339-f258bfea
    drwxr-xr-x 3 root root  37 Jan  5 09:46 npm-2381-44b2a32e
    drwxrwxr-x 3 es   es    37 Jan  6 02:21 npm-2404-e0646f46
    drwxrwxr-x 2 es   es     6 Jan  6 02:24 npm-2416-56232d2b
    drwxr-xr-x 3 root root  37 Jan  6 02:25 npm-2427-ac7dea5c
    drwxrwxr-x 3 1000 1000  32 Jan  5 09:54 npm-2466-3358fd28
    drwxrwxr-x 3 1000 1000  37 Jan  5 10:09 npm-2590-5ae8499b
    drwxrwxrwx 5 1000 1000 202 Jan  6 02:27 phantomjs
    drwx------ 3 root root  17 Jan  6 09:12 systemd-private-3333a83cac6947c59f5bb80f042de342-vmtoolsd.service-nRUgwa
    [es@node1 ~]$

原因是当前es用户没有/tmp/hsperfdata\_es目录的写权限。  
解决办法：

[root@node1 ~]# chown -R es:es /tmp/hsperfdata_es

[ElasticSearch 6.x _1.]: https://blog.csdn.net/chengyuqiang/article/details/78837712
[https_www.elastic.co_cn_downloads]: https://www.elastic.co/cn/downloads
[SouthEast]: /images/20220517/5af3f017c5884e29a10931267c39d266.png
[https_www.elastic.co_downloads_elasticsearch]: https://www.elastic.co/downloads/elasticsearch
[SouthEast 1]: /images/20220517/cdf7c4e935084051a00128b1ae32347d.png
[http_node1_9200]: http://node1:9200/
[SouthEast 2]: /images/20220517/cb79489e0a934b6f888cd03d19d103a7.png