Linux ES Cluster service configuration Description __linux

Description

ES website does not recommend the use of elastic Server root users, so the ES cluster configuration are using the ordinary account operation, new account elastic.

The Linux version is CentOS 7.3,es version for 5.5.0.

First, download and install the ES program

Download path:/home/elastic

Download Instructions:

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.5.0.tar.gz

Installation Instructions: TAR-ZXVF elasticsearch-5.5.0.tar.gz

Second, system parameter setup

In order for the ES service to start properly, you need to set the following parameters (root permissions):

1. Modify max file descriptors parameters

Vim/etc/security/limits.conf Open Limits File

Add or modify the following two line parameters:

* Hard Nofile 65536

* Soft Nofile 65536

To see if the setting parameters are in effect:

Ulimit-hn

Note: The account needs to log off and then log back in to view the set value.

This setting parameter corresponds to the following ES startup error:

Max file descriptors [4096] for elasticsearch process likely too low, increase to at least [65536]

2, modify the Vm.max_map_count parameters

1) Temporary modification method:

Sysctl-w vm.max_map_count=262144

Sysctl-p

To view parameter directives:

sysctl-a | grep "Vm.max_map_count"

Note: After the host restarts, the parameters are restored.

2) Permanent modification method:

vim/etc/sysctl.conf add vm.max_map_count=262144, Save and execute sysctl-p.

This setting parameter corresponds to the following ES startup error:

Max virtual Memory Areas Vm.max_map_count [65530] likely too low, increase to at least [262144]

Third,es cluster configuration

client node Clinet:

Intranet ip:172.26.178.100

ELASTICSEARCH.YML parameter configuration: Path/home/elastic/elasticsearch-5.5.0/config

Modify the file parameters as follows:

Cluster.name:tuyou-application

node.name:node-195

#client节点设置

Node.master:false

Node.data:false

network.host:172.26.178.100

http.port:9200

#查询master节点地址列表

Discovery.zen.ping.unicast.hosts: ["172.26.178.99", "172.26.178.98"]

#配合head插件管理ES集群

Http.cors.enabled:true

Http.cors.allow-origin: "*"

mixed node Master/data:

Intranet ip:172.26.178.99

ELASTICSEARCH.YML parameter configuration:

Modify the file parameters as follows:

Cluster.name:tuyou-application

node.name:node-255

network.host:172.26.178.99

http.port:9200

Discovery.zen.ping.unicast.hosts: ["172.26.178.98", "172.26.178.99"]

Discovery.zen.minimum_master_nodes:2

mixed node Master/data:

Intranet ip:172.26.178.98

ELASTICSEARCH.YML parameter configuration:

Modify the file parameters as follows:

Cluster.name:tuyou-application

node.name:node-150

network.host:172.26.178.98

http.port:9200

Discovery.zen.ping.unicast.hosts: ["172.26.178.99", "172.26.178.98"]

Discovery.zen.minimum_master_nodes:2

Four, the installation of participle plug-in

Note: The client node does not need to be installed

Plug-ins include: IK Chinese word breaker, pinyin pinyin participle plug-in, note that the plugin version and ES version consistent.

Copy the plug-in folder to the plugins path of ES, with the path address as follows:

/home/elastic/elasticsearch-5.5.0/plugins

IK Plug-in configuration description:

Path: The IKAnalyzer.cfg.xml file under/home/elastic/elasticsearch-5.5.0/plugins/ik/config.

<?xml version= "1.0" encoding= "UTF-8"?> <!
DOCTYPE Properties SYSTEM "Http://java.sun.com/dtd/properties.dtd" >
<properties>
	<comment> IK Analyzer Extension Configuration </comment>
	<!--users can configure their own extended dictionaries here-->
	<entry key= "Ext_dict" >custom/ Mydict.dic;custom/single_word_low_freq.dic;custom/sougou.dic</entry>
	 <!--users can configure their own extended stop word dictionaries here-- >
	<entry key= "Ext_stopwords" >custom/ext_stopword.dic</entry>
	<!--Users can configure the remote extension dictionary here-- >
	<!--<entry key= "Remote_ext_dict" >http://192.168.1.152:8080/tour/interface/getcustomdict.htm </entry>-->
	<!--Users can configure the remote extension Stop word dictionary here-->
	<!--<entry key= "Remote_ext_stopwords" > words_location</entry>-->
</properties>

Note: The external dictionary is temporarily closed.

V. start the service

The three services are switched to elastic users in the following path:

/home/elastic

Follow the instructions below to start the ES service in the background:

./elasticsearch-5.5.0/bin/elasticsearch-d

View ES service Process directives:

Ps-ef | grep elasticsearch

Once started, you can see if the service is working correctly by following these commands:

Curl http://Intranet Ip:9200/