首先新建使用者，es規定root使用者不能啟動es，所以必須新建使用者

groupadd es

useradd -g es es

chown es:es elasticsearch-5.4.1.zip

su es 切換到es使用者執行以下命令操作

unzip elasticsearch-5.4.1.zip 解壓縮

如果你只想玩玩單機版的話，解壓縮直接就可以使用了

如果你想做叢集測試，請繼續往下看

ln -s elasticsearch-5.4.1 es生成一個快捷方式，方便記憶路徑

cd es/config 進入es的配置資料夾，其實在linux上的很多開源軟體都喜歡把配置檔案放在config/conf資料夾下面

修改叢集配置，下面是完整的elasticsearch.yml配置檔案

# ======================== 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: edgeserver #叢集名稱，要部署為同一個叢集，這個名稱必須相同
#
# ------------------------------------ Node ------------------------------------
#
# Use a descriptive name for the node:
#
node.name: node-1 #節點名稱，節點名稱不能相同，是節點的標識
#
# 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: /path/to/data
#
# Path to log files:
#
#path.logs: /path/to/logs
#
# ----------------------------------- Memory -----------------------------------
#
# Lock the memory on startup:
#
bootstrap.memory_lock: false  #這兩個配置最好配置上，否則會報錯
bootstrap.system_call_filter: false  #這兩個配置最好配置上，否則會報錯
#
# 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: 10.100.124.205 #要對外開放的IP地址
#
# Set a custom port for HTTP:
#
http.port: 9200 #restful介面呼叫埠
transport.tcp.port: 9300  #叢集內部傳輸埠
#
# For more information, consult the network module documentation.
#
# --------------------------------- Discovery ----------------------------------
#
# Pass an initial list of hosts to perform discovery when new node is started:
# The default list of hosts is ["127.0.0.1", "[::1]"]
# #叢集裡所有的ip地址和埠
discovery.zen.ping.unicast.hosts: ["10.100.124.205:29300", "10.100.124.206:29300", "10.100.124.207:29300", "10.100.124.208:29300"]
#
# Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1):
#
#discovery.zen.minimum_master_nodes: 3
#
# For more information, consult the zen discovery 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
xpack.security.enabled: false #如果你安裝了xpack，這個要配置上，否則叢集的節點之間無法通訊，因為要登入密碼

# ======================== Elasticsearch Configuration =========================

把elasticsearch拷貝到其他叢集節點上，修改上面配置檔案的節點名稱（node.name）即可

啟動叢集

在各節點上進入es/bin

執行：./elasticsearch -d

測試

curl "http://10.100.124.205:29200/"

{
  "name" : "node-1",
  "cluster_name" : "edgeserver",
  "cluster_uuid" : "n8My_gsHR6GYLdvCHV1-Ug",
  "version" : {
    "number" : "5.4.0",
    "build_hash" : "780f8c4",
    "build_date" : "2017-04-28T17:43:27.229Z",
    "build_snapshot" : false,
    "lucene_version" : "6.5.0"
  },
  "tagline" : "You Know, for Search"
}
 

像類似的返回，表示啟動節點成功

curl "http://10.100.124.205:29200/_cat/nodes"

10.100.124.205 37 93 8 1.01 1.04 1.02 mdi * node-1
10.100.124.207 37 95 0 0.00 0.00 0.00 mdi - node-3
10.100.124.208 56 85 0 0.13 0.08 0.02 mdi - node-4
10.100.124.206 57 99 0 0.17 0.12 0.09 mdi - node-2

根據返回結果，可以知道叢集的4個節點都啟動好了

聽說，打賞我的人最後都找到了真愛。