elasticsearch在centos6.5下的部署

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• 安装jdk
  
  
    安装jdkde要点主要就是环境变量
  
    导出JAVA_HOME
  
    JRE_HOME
    导出可执行程序到PATH变量
  
  tar -zxvf jdk-8u73-linux-x64.tar.gz
  tar -zxf jdk-8u73-linux-x64.tar.gz
  mv jdk1.8.0_73 /usr/local/jdk
  echo "JAVA_HOME=/usr/local/jdk" >>/etc/profile
  echo "CLASSPATH=.:$JAVA_HOME/lib.tools.jar" >>/etc/profile
  echo "PATH=/usr/local/jdk/bin:/bin:/sbin:/usr/sbin:/bin:/usr/bin:/root/bin" >>/etc/profile
  echo "export JAVA_HOME CLASSPATH PATH" >>/etc/profile
  source /etc/profile
  
                    
  /usr/local/jdk/bin/java -version
  java version "1.8.0_73"
  Java(TM) SE Runtime Environment (build 1.8.0_73-b02)
  Java HotSpot(TM) 64-Bit Server VM (build 25.73-b02, mixed mode)
  
  

2. es安装
     1) 将es压缩文件移到/opt中
         　　mv  elasticsearch-2.3.3.tar.gz    /opt/
    2)解压，重命名
        　　tar zxvf elasticsearch-2.3.3.tar.gz
        　　mv elasticsearch-2.3.3 elasticsearch
    3)由于ElasticSearch可以接收用户输入的脚本并且执行，为了系统安全考虑， 建议创建一个单独的用户用来运行ElasticSearch
        　　groupadd elsearch
        　　useradd elsearch -g elsearch -p elasticsearch
   4)更改elasticsearch文件夹及内部文件的所属用户及组为elsearch:elsearch
        　　cd /opt
        　　chown -R elsearch:elsearch  elasticsearch
   5)切换到elsearch用户再启动
        　　su elsearch cd elasticsearch/bin
        　　./elasticsearch
    6)[elsearch@localhost opt]$ cd elasticsearch/bin/
[elsearch@localhost bin]$ ./elasticsearch
[2016-11-14 10:42:43,279][WARN ][bootstrap                ] unable to install syscall filter: seccomp unavailable: requires kernel 3.5+ with CONFIG_SECCOMP and CONFIG_SECCOMP_FILTER compiled in
[2016-11-14 10:42:43,760][INFO ][node                     ] [Armadillo] version[2.3.3], pid[5178], build[218bdf1/2016-05-17T15:40:04Z]
[2016-11-14 10:42:43,760][INFO ][node                     ] [Armadillo] initializing ...
[2016-11-14 10:42:44,925][INFO ][plugins                  ] [Armadillo] modules [reindex, lang-expression, lang-groovy], plugins [], sites []
[2016-11-14 10:42:44,962][INFO ][env                      ] [Armadillo] using [1] data paths, mounts [[/ (/dev/sda3)]], net usable_space [13.1gb], net total_space [44.9gb], spins? [possibly], types [ext4]
[2016-11-14 10:42:44,962][INFO ][env                      ] [Armadillo] heap size [1007.3mb], compressed ordinary object pointers [true]
[2016-11-14 10:42:44,962][WARN ][env                      ] [Armadillo] max file descriptors [65535] for elasticsearch process likely too low, consider increasing to at least [65536]
[2016-11-14 10:42:49,414][INFO ][node                     ] [Armadillo] initialized
[2016-11-14 10:42:49,416][INFO ][node                     ] [Armadillo] starting ...
[2016-11-14 10:42:49,659][INFO ][transport                ] [Armadillo] publish_address {127.0.0.1:9300}, bound_addresses {[::1]:9300}, {127.0.0.1:9300}
[2016-11-14 10:42:49,711][INFO ][discovery                ] [Armadillo] elasticsearch/zeSg2GF5TQGMkVZeVD_U_w
[2016-11-14 10:42:52,803][INFO ][cluster.service          ] [Armadillo] new_master {Armadillo}{zeSg2GF5TQGMkVZeVD_U_w}{127.0.0.1}{127.0.0.1:9300}, reason: zen-disco-join(elected_as_master, [0] joins received)
[2016-11-14 10:42:52,882][INFO ][http                     ] [Armadillo] publish_address {127.0.0.1:9200}, bound_addresses {[::1]:9200}, {127.0.0.1:9200}
[2016-11-14 10:42:52,882][INFO ][node                     ] [Armadillo] started
[2016-11-14 10:42:52,969][INFO ][gateway                  ] [Armadillo] recovered [0] indices into cluster_state

3.怎么确认是否安装成功

在浏览器中输入 http://ip:9200/ 访问，如果无法访问，需要修改配置文件elasticsearch.yml
# vim /usr/local/src/elasticsearch-2.3.3/config/elasticsearch.yml
# Set the bind address to a specific IP (IPv4 or IPv6):  
network.host: localhost
# Set a custom port for HTTP:  
http.port: 9200
# ./bin/elasticsearch -d       #后台进程启动
再次访问显示如下内容说明成功
{
   "name" : "Agron",
   "cluster_name" : "elasticsearch",
   "version" : {
     "number" : "2.3.3",
     "build_hash" : "218bdf10790eef486ff2c41a3df5cfa32dadcfde",
     "build_timestamp" : "2016-05-17T15:40:04Z",
     "build_snapshot" : false,
     "lucene_version" : "5.5.0"
   },
   "tagline" : "You Know, for Search"
}