执行命令：./20.04/install_elasticsearch.sh 7 安装 Elasticsearch 后，对应版本的 IK 分词插件未安装

1、执行命令：./20.04/install_elasticsearch.sh 7 安装 Elasticsearch 后，对应版本的 IK 分词插件未安装。如图1

图1

root@iZ2ze4fjghbbj74d4kfnf0Z:/var/www/laravel-shop# cd ~/laravel-ubuntu-init
root@iZ2ze4fjghbbj74d4kfnf0Z:~/laravel-ubuntu-init# ./20.04/install_elasticsearch.sh 7
===> 正在安装 JAVA...    [DONE]
===> 正在安装 Elasticsearch 7...    [DONE]
===> 正在安装 Elasticsearch 插件...    [DONE]
安装完毕
root@iZ2ze4fjghbbj74d4kfnf0Z:~/laravel-ubuntu-init# sudo /usr/share/elasticsearch/bin/elasticsearch-plugin list
root@iZ2ze4fjghbbj74d4kfnf0Z:~/laravel-ubuntu-init#

2、决定编辑 install_elasticsearch.sh，原因应该在于判断是否安装插件的代码无效。

function install_es_plugins {
    ESVersion=$(/usr/share/elasticsearch/bin/elasticsearch -V|awk -F',' '{print $1}'| awk '{print $2}')

#    [[ -e /usr/share/elasticsearch/plugins/analysis-ik ]] || {
        /usr/share/elasticsearch/bin/elasticsearch-plugin install --batch https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v${ESVersion}/elasticsearch-analysis-ik-${ESVersion}.zip
#    }
    mkdir -p /etc/elasticsearch/analysis/
    touch /etc/elasticsearch/analysis/synonyms.txt

    service elasticsearch restart
}

3、执行命令：/usr/share/elasticsearch/bin/elasticsearch-plugin list，仍然不存在对应的插件。

root@iZ2ze4fjghbbj74d4kfnf0Z:~/laravel-ubuntu-init# /usr/share/elasticsearch/bin/elasticsearch-plugin list
root@iZ2ze4fjghbbj74d4kfnf0Z:~/laravel-ubuntu-init#

4、最终决定手动安装插件。参考：https://github.com/medcl/elasticsearch-analysis-ik 。参考：IK version ES version 的对应关系。如图2

图2

5、使用 elasticsearch-plugin 安装 。由于 ES version 为 7.17.6，因此 IK 可安装最新版本。报错：插件 [analysis-ik] 是为 Elasticsearch 版本 8.2.3 构建的，但版本 7.17.6 正在运行。如图3

图3

root@iZ2ze4fjghbbj74d4kfnf0Z:~# curl 127.0.0.1:9200
{
  "name" : "iZ2ze4fjghbbj74d4kfnf0Z",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "ML75WugQScOM5vF1Jeye1w",
  "version" : {
    "number" : "7.17.6",
    "build_flavor" : "default",
    "build_type" : "deb",
    "build_hash" : "f65e9d338dc1d07b642e14a27f338990148ee5b6",
    "build_date" : "2022-08-23T11:08:48.893373482Z",
    "build_snapshot" : false,
    "lucene_version" : "8.11.1",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}
root@iZ2ze4fjghbbj74d4kfnf0Z:~# cd ~/laravel-ubuntu-init
root@iZ2ze4fjghbbj74d4kfnf0Z:~/laravel-ubuntu-init#
root@iZ2ze4fjghbbj74d4kfnf0Z:~/laravel-ubuntu-init#
root@iZ2ze4fjghbbj74d4kfnf0Z:~/laravel-ubuntu-init#
root@iZ2ze4fjghbbj74d4kfnf0Z:~/laravel-ubuntu-init# /usr/share/elasticsearch/bin/elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v8.2.3/elasticsearch-analysis-ik-8.2.3.zip
-> Installing https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v8.2.3/elasticsearch-analysis-ik-8.2.3.zip
-> Downloading https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v8.2.3/elasticsearch-analysis-ik-8.2.3.zip
[=================================================] 100%  
-> Failed installing https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v8.2.3/elasticsearch-analysis-ik-8.2.3.zip
-> Rolling back https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v8.2.3/elasticsearch-analysis-ik-8.2.3.zip
-> Rolled back https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v8.2.3/elasticsearch-analysis-ik-8.2.3.zip
Exception in thread "main" java.lang.IllegalArgumentException: Plugin [analysis-ik] was built for Elasticsearch version 8.2.3 but version 7.17.6 is running
        at org.elasticsearch.plugins.PluginsService.verifyCompatibility(PluginsService.java:391)
        at org.elasticsearch.plugins.cli.InstallPluginAction.loadPluginInfo(InstallPluginAction.java:831)
        at org.elasticsearch.plugins.cli.InstallPluginAction.installPlugin(InstallPluginAction.java:887)
        at org.elasticsearch.plugins.cli.InstallPluginAction.execute(InstallPluginAction.java:245)
        at org.elasticsearch.plugins.cli.InstallPluginCommand.execute(InstallPluginCommand.java:88)
        at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:77)
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:112)
        at org.elasticsearch.cli.MultiCommand.execute(MultiCommand.java:95)
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:112)
        at org.elasticsearch.cli.Command.main(Command.java:77)
        at org.elasticsearch.plugins.cli.PluginCli.main(PluginCli.java:36)
root@iZ2ze4fjghbbj74d4kfnf0Z:~/laravel-ubuntu-init#

6、决定安装 7.17.5 版本的插件。报错：插件 [analysis-ik] 是为 Elasticsearch 版本 7.17.5 构建的，但版本 7.17.6 正在运行。插件现在没有 7.17.6 版本。

root@iZ2ze4fjghbbj74d4kfnf0Z:~/laravel-ubuntu-init# /usr/share/elasticsearch/bin/elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.17.5/elasticsearch-analysis-ik-7.17.5.zip
-> Installing https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.17.5/elasticsearch-analysis-ik-7.17.5.zip
-> Downloading https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.17.5/elasticsearch-analysis-ik-7.17.5.zip
[=================================================] 100%  
-> Failed installing https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.17.5/elasticsearch-analysis-ik-7.17.5.zip
-> Rolling back https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.17.5/elasticsearch-analysis-ik-7.17.5.zip
-> Rolled back https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.17.5/elasticsearch-analysis-ik-7.17.5.zip
Exception in thread "main" java.lang.IllegalArgumentException: Plugin [analysis-ik] was built for Elasticsearch version 7.17.5 but version 7.17.6 is running
        at org.elasticsearch.plugins.PluginsService.verifyCompatibility(PluginsService.java:391)
        at org.elasticsearch.plugins.cli.InstallPluginAction.loadPluginInfo(InstallPluginAction.java:831)
        at org.elasticsearch.plugins.cli.InstallPluginAction.installPlugin(InstallPluginAction.java:887)
        at org.elasticsearch.plugins.cli.InstallPluginAction.execute(InstallPluginAction.java:245)
        at org.elasticsearch.plugins.cli.InstallPluginCommand.execute(InstallPluginCommand.java:88)
        at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:77)
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:112)
        at org.elasticsearch.cli.MultiCommand.execute(MultiCommand.java:95)
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:112)
        at org.elasticsearch.cli.Command.main(Command.java:77)
        at org.elasticsearch.plugins.cli.PluginCli.main(PluginCli.java:36)

7、只有回退 Elasticsearch 版本至 7.17.5。最终决定重新来过。编辑 /20.04/install_elasticsearch.sh。指定版本为 7.17.5。如图4

图4

function install_es {
    curl -sS https://artifacts.elastic.co/GPG-KEY-elasticsearch | apt-key add -
    echo "deb https://mirrors.tuna.tsinghua.edu.cn/elasticstack/${VERSION}.x/apt stable main" > /etc/apt/sources.list.d/elastic-${VERSION}.x.list
    apt-get update
    apt-get install -y elasticsearch=7.17.5
    service elasticsearch start
}

8、Elasticsearch 版本已经为 7.17.5，且插件已经安装。如图5

图5

root@iZ2zeh119jtszpxb8sf8pvZ:~/laravel-ubuntu-init# curl 127.0.0.1:9200
{
  "name" : "iZ2zeh119jtszpxb8sf8pvZ",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "65TOsoDbTn6sWU-JSfczZg",
  "version" : {
    "number" : "7.17.5",
    "build_flavor" : "default",
    "build_type" : "deb",
    "build_hash" : "8d61b4f7ddf931f219e3745f295ed2bbc50c8e84",
    "build_date" : "2022-06-23T21:57:28.736740635Z",
    "build_snapshot" : false,
    "lucene_version" : "8.11.1",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}
root@iZ2zeh119jtszpxb8sf8pvZ:~/laravel-ubuntu-init# sudo /usr/share/elasticsearch/bin/elasticsearch-plugin list
root@iZ2zeh119jtszpxb8sf8pvZ:~/laravel-ubuntu-init# /usr/share/elasticsearch/bin/elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.17.5/elasticsearch-analysis-ik-7.17.5.zip
-> Installing https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.17.5/elasticsearch-analysis-ik-7.17.5.zip
-> Downloading https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.17.5/elasticsearch-analysis-ik-7.17.5.zip
[=================================================] 100%  
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@     WARNING: plugin requires additional permissions     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
* java.net.SocketPermission * connect,resolve
See https://docs.oracle.com/javase/8/docs/technotes/guides/security/permissions.html
for descriptions of what these permissions allow and the associated risks.

Continue with installation? [y/N]y
-> Installed analysis-ik
-> Please restart Elasticsearch to activate any plugins installed
root@iZ2zeh119jtszpxb8sf8pvZ:~/laravel-ubuntu-init# service elasticsearch restart
root@iZ2zeh119jtszpxb8sf8pvZ:~/laravel-ubuntu-init# /usr/share/elasticsearch/bin/elasticsearch-plugin list                                                    analysis-ik
root@iZ2zeh119jtszpxb8sf8pvZ:~/laravel-ubuntu-init#