Linux Elasticsearch环境搭建

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环境

• Ubuntu 16.04.5 LTS

• Elasticsearch 2.3.4

• java 1.8.0_152 64 位

Elasticsearch安装及配置

• 下载 elasticsearch 安装包

$ wget https://labfile.oss.aliyuncs.com/courses/1014/elasticsearch-2.3.4.zip

• 解压 elasticsearch-2.3.4.zip

$ unzip elasticsearch-2.3.4.zip

• 创建日志目录和数据目录

$ mkdir -p elasticsearch-2.3.4/{logs,data}

• 进入 elasticsearch-2.3.4/bin 目录

$ cd elasticsearch-2.3.4/bin

• 下载 elasticsearch 的服务安装包

$ wget https://labfile.oss.aliyuncs.com/courses/1014/elasticsearch-servicewrapper-master.zip

这个服务包用于启动 elasticsearch。

• 解压 elasticsearch-servicewrapper-master.zip

$ unzip elasticsearch-servicewrapper-master.zip

• 建立服务

$ mv elasticsearch-servicewrapper-master/service ./

把 elasticsearch-servicewrapper-master/service 移动到 bin 目录下。

• 修改 elasticsearch-2.3.4/bin/service/elasticsearch.conf 文件

# 第30行左右
# Java Classpath (include wrapper.jar)  Add class path elements as
#  needed starting from 1
wrapper.java.classpath.1=%ES_HOME%/bin/service/lib/wrapper.jar
# wrapper.java.classpath.2=%ES_HOME%/lib/elasticsearch*.jar
wrapper.java.classpath.2=%ES_HOME%/lib/*.jar
wrapper.java.classpath.3=%ES_HOME%/lib/sigar/*.jar

# 第52行左右
# Initial Java Heap Size (in MB)
wrapper.java.initmemory=%ES_HEAP_SIZE%
wrapper.java.additional.10=-Des.insecure.allow.root=true

# 第58行左右
# Application parameters.  Add parameters as needed starting from 1
# wrapper.app.parameter.1=org.elasticsearch.bootstrap.ElasticsearchF
wrapper.app.parameter.1=org.elasticsearch.bootstrap.Elasticsearch
wrapper.app.parameter.2=start

• 修改 elasticsearch-2.3.4/config/elasticsearch.yml 文件

# 最后面添加这两行
network.host: 0.0.0.0
security.manager.enabled: false

• 启动 elasticsearch

$ elasticsearch-2.3.4/bin/service/elasticsearch start

• 访问 9200 端口

$ curl 0.0.0.0:9200
{
  "name" : "Gibborim",
  "cluster_name" : "elasticsearch",
  "version" : {
    "number" : "2.3.4",
    "build_hash" : "e455fd0c13dceca8dbbdbb1665d068ae55dabe3f",
    "build_timestamp" : "2016-06-30T11:24:31Z",
    "build_snapshot" : false,
    "lucene_version" : "5.5.0"
  },
  "tagline" : "You Know, for Search"

安装Head插件

elasticsearch-head 是一个界面化的集群操作和管理工具，可以对集群进行傻瓜式操作。

• 创建 elasticsearch-2.3.4/plugins 文件夹

$ mkdir -p elasticsearch-2.3.4/plugins

• 进入 plugins 目录下载 head 插件

$ cd plugins && wget https://labfile.oss.aliyuncs.com/courses/1014/elasticsearch-head-master.zip

• 解压 elasticsearch-head-master.zip

$ unzip elasticsearch-head-master.zip

• 删除 elasticsearch-head-master.zip

$ rm -rf elasticsearch-head-master.zip

解压完后必须要删除 elasticsearch-head-master.zip，否则会导致 elasticsearch 启动失败。

• 重命名 elasticsearch-head-master 为 head

$ mv elasticsearch-head-master head

• 重启 elasticsearch

$ elasticsearch-2.3.4/bin/service/elasticsearch stop
$ elasticsearch-2.3.4/bin/service/elasticsearch start

• 浏览器访问 http://121.5.206.236:9200/_plugin/head/

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此时代表 head 插件安装成功啦，121.5.206.236 是操作当前机器的公网IP。

安装ik插件

elasticsearch-analysis-ik 是一款中文的分词插件，支持自定义词库。

• 创建 elasticsearch-analysis-ik-1.8.1 目录

$ mkdir -p elasticsearch-2.3.4/plugins/elasticsearch-analysis-ik-1.8.1

• 进入 elasticsearch-analysis-ik-1.8.1 目录下载 ik 插件

$ cd elasticsearch-analysis-ik-1.8.1 && wget https://labfile.oss.aliyuncs.com/courses/1014/elasticsearch-analysis-ik-1.8.1.zip

• 解压 elasticsearch-analysis-ik-1.8.1.zip

$ unzip elasticsearch-analysis-ik-1.8.1.zip

• 删除 elasticsearch-analysis-ik-1.8.1.zip

$ rm -rf elasticsearch-analysis-ik-1.8.1.zip

• 修改 elasticsearch-analysis-ik-1.8.1/plugin-descriptor.properties 文件

# 修改elasticsearch的版本为2.3.4
elasticsearch.version=2.3.4

• 重启 elasticsearch

$ elasticsearch-2.3.4/bin/service/elasticsearch stop
$ elasticsearch-2.3.4/bin/service/elasticsearch start

• 查看 elasticsearch.log

$ cat elasticsearch-2.3.4/logs/elasticsearch.log | grep "ik-analyzer"
[2022-03-03 10:29:34,274][INFO ][ik-analyzer              ] [Dict Loading] ik/custom/mydict.dic
[2022-03-03 10:29:34,280][INFO ][ik-analyzer              ] [Dict Loading] ik/custom/single_word_low_freq.dic
[2022-03-03 10:29:34,285][INFO ][ik-analyzer              ] [Dict Loading] ik/custom/ext_stopword.dic

查看日志出现加载 ik-analyzer 的字样代表成功。