一、获取安装包:
EKL官网:https://www.elastic.co/products
二、安装elasticsearch
2.1、解压安装包，在安装目录创建data和logs目录，并在配置文件中指定路径:
elasticsearch.yml:
path.data: /data/local/elasticsearch/data
path.logs: /data/local/elasticsearch/logs
bootstrap.memory_lock: false
bootstrap.system_call_filter: false
network.host: 0.0.0.0
http.port: 9200
http.enabled: true
http.cors.enabled: true
http.cors.allow-origin: "*"
elasticsearch默认不允许root用户运行，创建elasticsearch用户，并将elasticsearch安装目录拥有着修改为elasticsearch。
修改几个文件:
2.2、/etc/security/limits.conf:
* soft nproc 2048
* hard nproc 4096
* soft nofile 65536
* hard nofile 131072
2.3、/etc/sysctl.conf，添加如下:
vm.max_map_count = 655360
2.4、/etc/security/limits.d/20-nproc.conf:
* soft nproc 4096
发生的错误:
ERROR: [1] bootstrap checks failed
禁止bootstrap检测:
修改elasticsearch.yml，添加如下:
bootstrap.memory_lock: false
bootstrap.system_call_filter: false
以上修改后，若还提示错误，需要重启系统。
启动elasticsearch：
切换到elasticsearch用户，在安装目录/bin下直接运行:
./elasticsearch &
可以看到启动日志:
[2017-08-03T15:09:45,481][INFO ][o.e.p.PluginsService ] [QaS1DC7] loaded module [aggs-matrix-stats]
[2017-08-03T15:09:45,481][INFO ][o.e.p.PluginsService ] [QaS1DC7] loaded module [ingest-common]
[2017-08-03T15:09:45,481][INFO ][o.e.p.PluginsService ] [QaS1DC7] loaded module [lang-expression]
[2017-08-03T15:09:45,481][INFO ][o.e.p.PluginsService ] [QaS1DC7] loaded module [lang-groovy]
[2017-08-03T15:09:45,481][INFO ][o.e.p.PluginsService ] [QaS1DC7] loaded module [lang-mustache]
[2017-08-03T15:09:45,482][INFO ][o.e.p.PluginsService ] [QaS1DC7] loaded module [lang-painless]
[2017-08-03T15:09:45,482][INFO ][o.e.p.PluginsService ] [QaS1DC7] loaded module [parent-join]
[2017-08-03T15:09:45,482][INFO ][o.e.p.PluginsService ] [QaS1DC7] loaded module [percolator]
[2017-08-03T15:09:45,482][INFO ][o.e.p.PluginsService ] [QaS1DC7] loaded module [reindex]
[2017-08-03T15:09:45,482][INFO ][o.e.p.PluginsService ] [QaS1DC7] loaded module [transport-netty3]
[2017-08-03T15:09:45,482][INFO ][o.e.p.PluginsService ] [QaS1DC7] loaded module [transport-netty4]
[2017-08-03T15:09:45,483][INFO ][o.e.p.PluginsService ] [QaS1DC7] no plugins loaded
[2017-08-03T15:09:47,328][INFO ][o.e.d.DiscoveryModule ] [QaS1DC7] using discovery type [zen]
[2017-08-03T15:09:47,878][INFO ][o.e.n.Node ] initialized
[2017-08-03T15:09:47,879][INFO ][o.e.n.Node ] [QaS1DC7] starting ...
[2017-08-03T15:09:48,051][INFO ][o.e.t.TransportService ] [QaS1DC7] publish_address {192.168.1.23:9300}, bound_addresses {[::]:9300}
[2017-08-03T15:09:48,061][INFO ][o.e.b.BootstrapChecks ] [QaS1DC7] bound or publishing to a non-loopback or non-link-local address, enforcing bootstrap checks
[2017-08-03T15:09:51,113][INFO ][o.e.c.s.ClusterService ] [QaS1DC7] new_master {QaS1DC7}{QaS1DC7FQy6uyuZv4RCoEw}{9u0bZc88TCKmbcT1tOwdlw}{192.168.1.23}{192.168.1.23:9300}, reason: zen-disco-elected-as-master ([0] nodes joined)
[2017-08-03T15:09:51,132][INFO ][o.e.h.n.Netty4HttpServerTransport] [QaS1DC7] publish_address {192.168.1.23:9200}, bound_addresses {[::]:9200}
[2017-08-03T15:09:51,132][INFO ][o.e.n.Node ] [QaS1DC7] started
[2017-08-03T15:09:51,146][INFO ][o.e.g.GatewayService ] [QaS1DC7] recovered [0] indices into cluster_state
2.5、安装elasticsearch-head：
elasticsearch-head是干啥的？
答:elasticsearch-head是一个可视化的管理elasticsearch集群的工具。
获取软件包:
git clone git://github.com/mobz/elasticsearch-head.git
到elasticsearch-head目录下：
npm install
注：前提需要安装nodjs。
tar zxvf node-v6.10.3.tar.gz
cd node
./configure
make
make install
编辑Gruntfile.js文件，connect修改如下:
connect: {
server: {
options: {
hostname: '0.0.0.0',
port: 9100,
base: '.',
keepalive: true
}
}
}
启动head:
/elasticsearch-head/node_modules/grunt/bin/grunt server