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Elasticsearch6.5.1之head插件安装(初版)

Elasticsearch6.5.1之head插件安装(初版)

作者: 眸子里的淡淡忧伤 | 来源:发表于2019-02-27 11:02 被阅读0次

    安装NodeJS

    yum -y install nodejs
    执行node -v确认nodejs是否安装成功

    修改ES配置

    修改要监控的es配置文件$ES_INSTALL_PATH/config/elasticsearch.yml,新增跨域配置
    http.cors.enabled: true #允许跨域
    http.cors.allow-origin: "*"

    安装grunt,修改head配置

    下载head包,解压

    cd ~/elasticsearch-head/
    npm install -g grunt
    npm install -g grunt-cli
    vim ~/elasticsearch-head/Gruntfile.js,新增hostname:'',
    connect: {
    server: {
    options: {
    hostname:'
    ',
    port: 9100,
    base:'.',
    keepalive:true
    }
    }
    cd ~/elasticsearch-head/
    npm install

    启动head插件

    cd ~/elasticsearch-head/node_modules/grunt/bin/ && nohup grunt server &
    访问:http://ip:9100/

    坑1:

    npm WARN elasticsearch-head@0.0.0 license should be a valid SPDX license expression

    解决:

    spdx license,vim ~/elasticsearch-head/package.json,找到license位置,值修改为Apache-2.0

    坑2:

    java.io.FileNotFoundException: /root/elasticsearch-6.5.1/logs/elasticsearch_index_search_slowlog.log (权限不够)
    at java.io.FileOutputStream.open0(Native Method)
    at java.io.FileOutputStream.open(FileOutputStream.java:270)
    at java.io.FileOutputStream.<init>(FileOutputStream.java:213)
    at java.io.FileOutputStream.<init>(FileOutputStream.java:133)
    at org.apache.log4j.FileAppender.setFile(FileAppender.java:294)
    原因: 文件所有者不是当前用户

    解决:

    退回解压目录, 更改整个文件夹的所有者为当前用户
    chown -R es:es elasticsearch-6.5.1

    坑3:

    ERROR: [2] bootstrap checks failed
    max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]

    解决:

    su root, vim /etc/security/limits.conf

    •    hard    nofile           65536
      
    •    soft    nofile           65536
      

    坑4:

    ERROR: bootstrap checks failed
    max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
    原因: 堆内存太低, 继续调大

    解决:

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

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