centos7.x 安裝教程 elasticsearch7.0.X & es-head

1. 下載需要的 壓縮包 ->

jdk:https://www.oracle.com/technetwork/java/javase/downloads/index.html
es:https://www.elastic.co/cn/downloads/elasticsearch
es-head:https://github.com/mobz/elasticsearch-head

2. 安裝nodejs

curl --silent --location https://rpm.nodesource.com/setup_10.x | bash -
yum install -y nodejs

3. 開始安裝ES服務
   1.ES不能以 root 許可權啟動。

#建立一個使用者組，這裡，我給使用者組取名為 esk
groupadd esk
# 二、建立一個使用者 es，並將其新增到 esk使用者組
useradd es -g esk
# 三、為es 使用者賦予 /usr/soft 目錄許可權
chown -R es:esk /usr/soft
#關閉防火牆
firewall-cmd --state //檢視防火牆狀態
systemctl stop firewalld.service //停止firewall
systemctl disable firewalld.service //禁止firewall開機啟動

2.切換es使用者

# 切換到 es使用者
su es

3. 修改配置 /config/elasticsearch.yml

# ======================== Elasticsearch Configuration =========================
#
# NOTE: Elasticsearch comes with reasonable defaults for most settings.
#       Before you set out to tweak and tune the configuration, make sure you
#       understand what are you trying to accomplish and the consequences.
#
# The primary way of configuring a node is via this file. This template lists
# the most important settings you may want to configure for a production cluster.
#
# Please consult the documentation for further information on configuration options:
# https://www.elastic.co/guide/en/elasticsearch/reference/index.html
#
# ---------------------------------- Cluster -----------------------------------
#
# Use a descriptive name for your cluster:
#
#cluster.name: my-application
#
# Use a descriptive name for the node:
#
node.name: node-1
#
# Add custom attributes to the node:
#
#node.attr.rack: r1
#
# ----------------------------------- Paths ------------------------------------
#
# Path to directory where to store the data (separate multiple locations by comma):
#
path.data: /usr/soft/data
#
# Path to log files:
#
path.logs: /usr/soft/logs
#
# ----------------------------------- Memory -----------------------------------
#
# Lock the memory on startup:
#
#bootstrap.memory_lock: true
#
# Make sure that the heap size is set to about half the memory available
# on the system and that the owner of the process is allowed to use this
# limit.
#
# Elasticsearch performs poorly when the system is swapping the memory.
#
# ---------------------------------- Network -----------------------------------
#
# Set the bind address to a specific IP (IPv4 or IPv6):
#
network.host: 192.168.1.124
#
# Set a custom port for HTTP:
#
http.port: 9200
#
# For more information, consult the network module documentation.
#
# --------------------------------- Discovery ----------------------------------
#
# Pass an initial list of hosts to perform discovery when this node is started:
# The default list of hosts is ["127.0.0.1", "[::1]"]
#
#discovery.seed_hosts: ["host1", "host2"]
#
# Bootstrap the cluster using an initial set of master-eligible nodes:
#
cluster.initial_master_nodes: ["node-1"]
#
# For more information, consult the discovery and cluster formation module documentation.
#
# ---------------------------------- Gateway -----------------------------------
#
# Block initial recovery after a full cluster restart until N nodes are started:
#
#gateway.recover_after_nodes: 3
#
# For more information, consult the gateway module documentation.
#
# ---------------------------------- Various -----------------------------------
#
# Require explicit names when deleting indices:
#
#action.destructive_requires_name: true
http.cors.enabled: true

http.cors.allow-origin: "*"

4. 啟動

# 執行 elasticsearch
./elasticsearch

解決：

# 首先切換到 root 使用者
su root
# 輸入密碼，然後編輯下面檔案
vim /etc/sysctl.conf
# 在檔案末尾新增以下內容
vm.max_map_count=262144
sysctl -p

vim /etc/security/limits.conf
*               soft    nproc           4096
*               hard    nproc           4096
*               soft    nofile          65536
*               hard    nofile          65536
ulimit -Hu
ulimit -Su

再次啟動 ES

4. 安裝es-head

#1.先安裝  grunt
 npm install -g grunt-cli

yum install -y bzip2

npm install

1. 配置 Gruntfile.js
   

2.配置 /_site/app.js

3. 啟動

5. 測試