Elasticsearch本地 && docker-compose 安裝

安裝前的檢查

1. 安裝 Elasticsearch 以前，你須要先安裝一個較新的版本的 Java，最好的選擇是，你能夠從 www.java.com 得到官方提供的最新版本的 Java。

2. 安裝JDK

   sudo yum install java-1.8.0-openjdk.x86_64

3. 測試

   [vagrant@localhost vagrant_data]$ java -version
   openjdk version "1.8.0_161"
   OpenJDK Runtime Environment (build 1.8.0_161-b14)
   OpenJDK 64-Bit Server VM (build 25.161-b14, mixed mode)

安裝Elasticsearch

1. 執行如下命令

   curl -L -O https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.6.8.tar.gz
   tar -xvf elasticsearch-5.6.8.tar.gz
   cd elasticsearch-5.6.8/bin
   ./elasticsearch

2. 測試是否安裝成功

   [vagrant@localhost elasticsearch-5.6.8]$ curl 'http://localhost:9200/?pretty'
   {
     "name" : "Lx20sHw",
     "cluster_name" : "elasticsearch",
     "cluster_uuid" : "gnYSlRb9TUqpVnBscm1-GQ",
     "version" : {
       "number" : "5.6.8",
       "build_hash" : "688ecce",
       "build_date" : "2018-02-16T16:46:30.010Z",
       "build_snapshot" : false,
       "lucene_version" : "6.6.1"
     },
     "tagline" : "You Know, for Search"
   }

安裝報錯處理

1. Vagrant內存不足報錯

   [vagrant@localhost elasticsearch-5.6.8]$ ./bin/elasticsearch
       OpenJDK 64-Bit Server VM warning: If the number of processors is expected to increase from one, then you should configure the number of parallel GC threads appropriately using -XX:ParallelGCThreads=N
       OpenJDK 64-Bit Server VM warning: INFO: os::commit_memory(0x0000000085330000, 2060255232, 0) failed; error='Cannot allocate memory' (errno=12)
       #
       # There is insufficient memory for the Java Runtime Environment to continue.
       # Native memory allocation (mmap) failed to map 2060255232 bytes for committing reserved memory.
       # An error report file with more information is saved as:
       # /vagrant_data/elasticsearch-5.6.8/hs_err_pid22178.log
   [vagrant@localhost elasticsearch-5.6.8]$ free -m
                     total        used        free      shared  buff/cache   available
       Mem:            488         101          88           3         297         340
       Swap:          1535           1        1534

   解決方法：

   • 打開Vagrantfile

   • 添加以下信息：

     config.vm.provider "virtualbox" do |v|
     v.memory = 2048
     v.cpus = 2
     end

   • 重啓Vagrant vagrant reload

2. ElasticSearch 啓動報錯

   ERROR: [2] bootstrap checks failed
      [1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
      [2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

   解決方法：

   sudo vim /etc/security/limits.conf
   # 添加以下信息:
   # [當前用戶名] hard nofile 65536
   # [當前用戶名] soft nofile 65536
   # 保存退出
   *******************************************************************
   sysctl -w vm.max_map_count=655360
   sysctl -a | grep "vm.max_map_count"

docker-compose 安裝

version: "3"
services:
    php_pc:
        image: php:7.2-cli
        container_name: pcsoft_php
        ports :
            - "9000:9000"
        volumes:
            - ./phpcli:/var/www/html/
    db_pc:
        image: mysql:5.7
        container_name: pcsoft_db
        volumes:
            - ./dbdata:/var/lib/mysql/
        ports:
            - "3306:3306"
        environment:
            MYSQL_USER: root
            MYSQL_PASSWORD: root
            MYSQL_ROOT_PASSWORD: root
    elasticsearch_soft:
        image: registry.cn-hangzhou.aliyuncs.com/amor/elastic:6.2.3
        container_name: es_pc_soft
        environment:
            - cluster.name=docker-cluster
            - bootstrap.memory_lock=true
            - xpack.security.enabled=false
            - "ES_JAVA_OPTS=-Xms2g -Xmx2g"
        ulimits:
            memlock:
                soft: -1
                hard: -1
        volumes:
            - ./docker_es/esdata_soft:/usr/share/elasticsearch/data
        ports:
            - 9200:9200
    elasticsearch_game:
        image: registry.cn-hangzhou.aliyuncs.com/amor/elastic:6.2.3
        container_name: es_pc_game
        environment:
            - cluster.name=docker-cluster
            - bootstrap.memory_lock=true
            - xpack.security.enabled=false
            - "ES_JAVA_OPTS=-Xms2g -Xmx2g"
            - "discovery.zen.ping.unicast.hosts=es_pc_soft"
        ulimits:
            memlock:
                soft: -1
                hard: -1
        volumes:
            - ./docker_es/esdata_game:/usr/share/elasticsearch/data
    kibana:
        image: registry.cn-hangzhou.aliyuncs.com/amor/kibana:6.2.3
        container_name: es_pc_kibana
        environment:
            SERVER_NAME: kibana.pc_amor.com
            ELASTICSEARCH_URL: http://elasticsearch_soft:9200
            XPACK_SECURITY_ENABLED: "false"

docker-compose 安裝報錯處理

• vm.max_map_count 報錯

  grep vm.max_map_count /etc/sysctl.conf
  # 若是找不到，則在該文件中添加 vm.max_map_count=262144 而後執行 sysctl -p
  # 臨時改變輕執行 
  sysctl -w vm.max_map_count=262144

• 不能以root權限運行問題

  請檢查Elasticsearch掛載的目錄是不是root用戶建立的

• Kibana連接問題

  直接經過docker-compose server name連接便可

• kibana沒法登錄問題

  # 添加如下選項：
  XPACK_SECURITY_ENABLED: "false"