Elasticsearch 5.0

Elasticsearch 5.0

The basic use of ES will use the head, but the version upgrade to 5.0, the head plug-in is not good to make. Let's see how to start the head plugin in 5.0!

Official Rough Tutorials

Running with built in server

Enable cors by adding http.cors.enabled:true in Elasticsearch configuration. Don ' t forget to also set http.cors.allow-origin because no Origin allowed by default. Http.cors.allow-origin: "*" is valid value, however it ' s considered as a security risk as your cluster are open to cross or Igin from anywhere.

Check Elasticsearch documentation on this parameter:

clone git://github.com/mobz/elasticsearch-head.gitcd elasticsearch-headnpm installgrunt server

Open Http://localhost:9100/
This would start a local webserver running on port 9100 serving Elasticsearch-head

Best option if is likely to connect to several different clusters

Deploying the 5.0 version of ES

The biggest difference between the 5.0 version of ES and the previous version is that there are many environment checks, such as jdk,max-files and so on.

Setting Kernel parameters

vi /etc/sysctl.conf# 增加下面的内容fs.file-max=65536vm.max_map_count=262144

Set Resource parameters

vi /etc/security/limits.conf# 修改* soft nofile 32768* hard nofile 65536

Modifying the parameters of a Elasticsearch

Modify the parameters used by es:

# Change the name of the cluster to avoid mixing with others ' clustersCluster. Name:Es-5.0-test# a different node namenode.name:  node-101# Modify es the listening address, so that other machines can also access network.host:0.0.0< Span class= "Hljs-selector-class" >.0# The default is good http The. port:9200# adds new parameters so that head plug-ins can access eshttp.cors.enabled: truehttp.cors.allow-origin: "*"          

Note that when setting the parameters: there are spaces behind! Install the deployment head First step, install Git

Need to download code from github, so install git first

install git

Once the installation is complete, you can download the code directly:

git://github.com/mobz/elasticsearch-head.git

After downloading, modify the next 777 permissions (Simple rude), because it is independent start head, so just put a position on the line, reference:

/usr/elk/head/*****

Step Two, install node

Because the head plug-in is essentially a NODEJS project, you need to install node and use NPM to install dependent packages. (NPM can be understood as MAVEN)

Go to the official website to download nodejs,https://nodejs.org/en/download/

The downloaded jar package is in XZ format, the general Linux may not be recognized, and you need to install XZ.

install xz

Then unzip the NODEJS installation package:

xz -d node*.tar.xztar -xvf node*.tar

After you have extracted the installation files for node, you need to configure the environment variables, edit the/etc/profile, add

set node environmentexport NODE_HOME=/usr/elk/node-v6.9.1-linux-x64export PATH=$PATH:$NODE_HOME/bin

Don't forget to do the following immediately

source /etc/profile

At this point, you can test if node is in effect:

[[email protected] node-v6.9.1-linux-x64]# echo $NODE_HOME/usr/elk/node-v6.9.1-linux-x64[[email protected] node-v6.9.1-linux-x64]# node -vv6.9.1[[email protected] node-v6.9.1-linux-x64]# npm -v3.10.8

Step three, install grunt

Grunt is a handy build tool for packaging compression, testing, execution, and so on, and the 5.0-in head plugin is launched through grunt. So you need to install Grunt:

install grunt-cli

After the installation is complete, check:

[[email protected] elasticsearch-head]# grunt -versiongrunt-cli v1.2.0grunt v0.4.5

Fourth step, modify head source code

Because the head code is also version 2.6, there are many restrictions on direct execution, such as the inability to access across machines. So users need to modify two places:

Modify Server Listener Address

Catalog: Head/gruntfile.js

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

Add hostname property, set to *

To modify the connection address:

Catalog: Head/_site/app.js

To modify the connection address of the head:

this.base_uri = this.config.base_uri || this.prefs.get("app-base_uri") || "http://localhost:9200";

Change localhost to the server address of your ES, such as:

this.base_uri = this.config.base_uri || this.prefs.get("app-base_uri") || "http://10.10.10.10:9200";

Fifth step, run head

First Open 5.0 ES.

Then, in the head directory, execute the package since the NPM install was downloaded:

install 

Finally, start Nodejs

grunt server

Visit: target:9100

At this point, access http://xxx:9100 can access the head plugin.

Reference

Official Head Document

Category: Elasticsearch

Elasticsearch 5.0