Installation of Elastic search

• Download tar packages on the official website. Download address
• Unzip after downloading

• Start in bin directory

  Note: If the root user starts, there will be an exception, because es goes out for security considerations. It is forbidden to start with root user. The solution is to build a new user. See this blog for details: CENTOS Installation Elastic Search.

• Modify the configuration file by entering the conf directory of es

  cluster.name: es-cluster
  node.name: node-1
  network.host: 0.0.0.0
  http.port: 9200

• Start ES with the following command

  • ./elasticsearch
  • / elastic search-d (this is background boot)

• See the following log information:

  [2017-03-25T14:30:45,189][INFO ][o.e.n.Node               ] [node-1] initializing ...
  [2017-03-25T14:30:45,272][INFO ][o.e.e.NodeEnvironment    ] [node-1] using [1] data paths, mounts [[/ (/dev/disk1)]], net usable_space [278.8gb], net total_space [464.6gb], spins? [unknown], types [hfs]
  [2017-03-25T14:30:45,272][INFO ][o.e.e.NodeEnvironment    ] [node-1] heap size [1.9gb], compressed ordinary object pointers [true]
  [2017-03-25T14:30:45,273][INFO ][o.e.n.Node               ] [node-1] node name [node-1], node ID [n1HFjO-TQlSs4Ncw0HD34A]
  [2017-03-25T14:30:45,276][INFO ][o.e.n.Node               ] [node-1] version[5.2.2], pid[3763], build[f9d9b74/2017-02-24T17:26:45.835Z], OS[Mac OS X/10.12.3/x86_64], JVM[Oracle Corporation/Java HotSpot(TM) 64-Bit Server VM/1.8.0_111/25.111-b14]
  [2017-03-25T14:30:45,971][INFO ][o.e.p.PluginsService     ] [node-1] loaded module [aggs-matrix-stats]
  [2017-03-25T14:30:45,971][INFO ][o.e.p.PluginsService     ] [node-1] loaded module [ingest-common]
  [2017-03-25T14:30:45,971][INFO ][o.e.p.PluginsService     ] [node-1] loaded module [lang-expression]
  [2017-03-25T14:30:45,971][INFO ][o.e.p.PluginsService     ] [node-1] loaded module [lang-groovy]
  [2017-03-25T14:30:45,971][INFO ][o.e.p.PluginsService     ] [node-1] loaded module [lang-mustache]
  [2017-03-25T14:30:45,971][INFO ][o.e.p.PluginsService     ] [node-1] loaded module [lang-painless]
  [2017-03-25T14:30:45,971][INFO ][o.e.p.PluginsService     ] [node-1] loaded module [percolator]
  [2017-03-25T14:30:45,971][INFO ][o.e.p.PluginsService     ] [node-1] loaded module [reindex]
  [2017-03-25T14:30:45,972][INFO ][o.e.p.PluginsService     ] [node-1] loaded module [transport-netty3]
  [2017-03-25T14:30:45,972][INFO ][o.e.p.PluginsService     ] [node-1] loaded module [transport-netty4]
  [2017-03-25T14:30:45,972][INFO ][o.e.p.PluginsService     ] [node-1] no plugins loaded
  [2017-03-25T14:30:47,936][INFO ][o.e.n.Node               ] [node-1] initialized
  [2017-03-25T14:30:47,936][INFO ][o.e.n.Node               ] [node-1] starting ...
  [2017-03-25T14:30:48,119][INFO ][o.e.t.TransportService   ] [node-1] publish_address {192.168.31.110:9300}, bound_addresses {[::]:9300}
  [2017-03-25T14:30:48,123][INFO ][o.e.b.BootstrapChecks    ] [node-1] bound or publishing to a non-loopback or non-link-local address, enforcing bootstrap checks
  [2017-03-25T14:30:51,226][INFO ][o.e.c.s.ClusterService   ] [node-1] new_master {node-1}{n1HFjO-TQlSs4Ncw0HD34A}{gn6UwArmTG-DEwYmzh1U9g}{192.168.31.110}{192.168.31.110:9300}, reason: zen-disco-elected-as-master ([0] nodes joined)
  [2017-03-25T14:30:51,240][INFO ][o.e.h.HttpServer         ] [node-1] publish_address {192.168.31.110:9200}, bound_addresses {[::]:9200}
  [2017-03-25T14:30:51,240][INFO ][o.e.n.Node               ] [node-1] started
  [2017-03-25T14:30:51,246][INFO ][o.e.g.GatewayService     ] [node-1] recovered [0] indices into cluster_state

• Through IP access, for example, my IP is 192.168.31.110, then the access address is 192.168.31.110:9200, you can see the following information

  {
  name: "n1HFjO-",
  cluster_name: "elasticsearch",
  cluster_uuid: "njH6T6eMS-mDf3tloN5THg",
  version: {
  number: "5.2.2",
  build_hash: "f9d9b74",
  build_date: "2017-02-24T17:26:45.835Z",
  build_snapshot: false,
  lucene_version: "6.4.1"
  },
  tagline: "You Know, for Search"
  }

Installation of Head Plug-in

• Head-GitHub official website
• Simple Course on Official Website

  git clone git://github.com/mobz/elasticsearch-head.git
  cd elasticsearch-head
  npm install
  grunt server

Depending on the Node environment, we need to do some work:

• Git
• Node official website

Head plug-in installation

• Download and install the corresponding Node installation package
• Installing Git Environment
• Download Head Project
• cd elasticsearch-head
• Modify the server listening address, address directory: head/Gruntfile.js

  connect: {
    server: {
        options: {
            port: 9100,
            hostname: '*',
            base: '.',
            keepalive: true
        }
    }
  }

• Modify the connection address, directory: head/_site/app.js

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• npm install

  Note: If the npm source is particularly slow, you can refer to this document: npm install non-response solution

• Grunt is a very convenient build tool for packaging, compression, testing, execution and so on. The head plug-in in 5.0 is launched through grunt. So you need to install grunt: npm install grunt-cli
• grunt server: Make sure the es service is started

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• Open browser input: IP:9100

Paste_Image.png

• Normally, you can see that ES has been connected, but many people in the ES community have been configurated, but you can not see the connection information. At this time, you need to add the following configuration in the elastic search. YM of es:

  http.cors.enabled: true
  http.cors.allow-origin: "*"