centos7 部署Elasticsearch單機/叢集並安裝head外掛實現ES叢集的視覺化管理
centos7 部署Elasticsearch並安裝head外掛實現ES叢集的視覺化管理
最近看了es的一些介紹想自己動手安裝學習下,畢竟不實際執行是不會遇到坑的,嗯,你沒看錯,全是坑,閒言少敘,直接整體,到ES官網下載
這裡我直接下載zip檔案,
首先機器要安裝jdk 1.8+ 具體參考:安裝教程
[niezp@localhost elasticsearch-6.0.0]$ tar -vxf elasticsearch-6.0.0.tar.gz
內部結構
[[email protected] elasticsearch-6.0.0]$ ll
總用量 244
drwxr-xr-x 2 niezp niezp 4096 11月 10 18:42 bin
drwxr-xr-x 2 niezp niezp 75 12月 6 15:39 config
drwxrwxr-x 3 niezp niezp 19 12月 6 11:45 data
-rw-rw-r-- 1 niezp niezp 18180 12月 6 15:01 hs_err_pid9395.log
drwxr-xr-x 2 niezp niezp 4096 11月 10 18:42 lib
-rw-r--r-- 1 niezp niezp 11358 11月 10 18:39 LICENSE .txt
drwxrwxr-x 2 niezp niezp 286 12月 6 14:21 logs
drwxr-xr-x 14 niezp niezp 251 11月 10 18:42 modules
-rw-rw-r-- 1 niezp niezp 193097 11月 10 18:42 NOTICE.txt
drwxr-xr-x 2 niezp niezp 6 12月 6 14:17 plugins
-rw-r--r-- 1 niezp niezp 9326 11月 10 18:39 README.textile
[[email protected] elasticsearch-6.0.0]$
接下來我們配置 config/elasticsearch.yml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: my-application
#
# ------------------------------------ Node ------------------------------------
#
# 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: /path/to/data
#
# Path to log files:
#
#path.logs: /path/to/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: 0.0.0.0
#
# 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 new node is started:
# The default list of hosts is ["127.0.0.1", "[::1]"]
#
#discovery.zen.ping.unicast.hosts: ["host1", "host2"]
#
# 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
# 叢集的名字
cluster.name: niezp
# 節點名字
node.name: niezp-master
#是否是master
node.master: true
#ES的監聽地址,這樣別的機器也可以訪問
network.host: 192.168.174.148
# 預設的就好
http.port: 9200
#本機最大允許執行節點個數
node.max_local_storage_nodes: 3
# 增加新的引數,這樣head外掛可以訪問es,解決跨域訪問問題
http.cors.enabled: true
http.cors.allow-origin: "*"
這裡ES配置就結束了,對沒有錯,就這麼簡單
啟動ES:
[niezp@localhost elasticsearch-6.0.0]$ ./bin/elasticsearch
注意執行目錄
看到輸出如下資訊 started
[2017-12-06T15:20:46,189][INFO ][o.e.e.NodeEnvironment ] [niezp-master] using [1] data paths, mounts [[/ (rootfs)]], net usable_space [11.2gb], net total_space [36.9gb], types [rootfs]
[2017-12-06T15:20:46,189][INFO ][o.e.e.NodeEnvironment ] [niezp-master] heap size [495.3mb], compressed ordinary object pointers [true]
[2017-12-06T15:20:46,190][INFO ][o.e.n.Node ] [niezp-master] node name [niezp-master], node ID [Jena8SthQXiBtzcs5-y0QQ]
[2017-12-06T15:20:46,191][INFO ][o.e.n.Node ] [niezp-master] version[6.0.0], pid[5031], build[8f0685b/2017-11-10T18:41:22.859Z], OS[Linux/3.10.0-514.el7.x86_64/amd64], JVM[Oracle Corporation/Java HotSpot(TM) 64-Bit Server VM/1.8.0_131/25.131-b11]
[2017-12-06T15:20:46,191][INFO ][o.e.n.Node ] [niezp-master] JVM arguments [-Xms512M, -Xmx512M, -XX:+UseConcMarkSweepGC, -XX:CMSInitiatingOccupancyFraction=75, -XX:+UseCMSInitiatingOccupancyOnly, -XX:+AlwaysPreTouch, -Xss1m, -Djava.awt.headless=true, -Dfile.encoding=UTF-8, -Djna.nosys=true, -XX:-OmitStackTraceInFastThrow, -Dio.netty.noUnsafe=true, -Dio.netty.noKeySetOptimization=true, -Dio.netty.recycler.maxCapacityPerThread=0, -Dlog4j.shutdownHookEnabled=false, -Dlog4j2.disable.jmx=true, -XX:+HeapDumpOnOutOfMemoryError, -Des.path.home=/home/niezp/ES/elasticsearch-6.0.0, -Des.path.conf=/home/niezp/ES/elasticsearch-6.0.0/config]
[2017-12-06T15:20:47,036][INFO ][o.e.p.PluginsService ] [niezp-master] loaded module [aggs-matrix-stats]
[2017-12-06T15:20:47,037][INFO ][o.e.p.PluginsService ] [niezp-master] loaded module [analysis-common]
[2017-12-06T15:20:47,037][INFO ][o.e.p.PluginsService ] [niezp-master] loaded module [ingest-common]
[2017-12-06T15:20:47,037][INFO ][o.e.p.PluginsService ] [niezp-master] loaded module [lang-expression]
[2017-12-06T15:20:47,037][INFO ][o.e.p.PluginsService ] [niezp-master] loaded module [lang-mustache]
[2017-12-06T15:20:47,037][INFO ][o.e.p.PluginsService ] [niezp-master] loaded module [lang-painless]
[2017-12-06T15:20:47,038][INFO ][o.e.p.PluginsService ] [niezp-master] loaded module [parent-join]
[2017-12-06T15:20:47,038][INFO ][o.e.p.PluginsService ] [niezp-master] loaded module [percolator]
[2017-12-06T15:20:47,038][INFO ][o.e.p.PluginsService ] [niezp-master] loaded module [reindex]
[2017-12-06T15:20:47,038][INFO ][o.e.p.PluginsService ] [niezp-master] loaded module [repository-url]
[2017-12-06T15:20:47,038][INFO ][o.e.p.PluginsService ] [niezp-master] loaded module [transport-netty4]
[2017-12-06T15:20:47,038][INFO ][o.e.p.PluginsService ] [niezp-master] loaded module [tribe]
[2017-12-06T15:20:47,039][INFO ][o.e.p.PluginsService ] [niezp-master] no plugins loaded
[2017-12-06T15:20:48,519][INFO ][o.e.d.DiscoveryModule ] [niezp-master] using discovery type [zen]
[2017-12-06T15:20:49,097][INFO ][o.e.n.Node ] [niezp-master] initialized
[2017-12-06T15:20:49,098][INFO ][o.e.n.Node ] [niezp-master] starting ...
[2017-12-06T15:20:49,253][INFO ][o.e.t.TransportService ] [niezp-master] publish_address {127.0.0.1:9300}, bound_addresses {127.0.0.1:9300}
[2017-12-06T15:20:52,347][INFO ][o.e.c.s.MasterService ] [niezp-master] zen-disco-elected-as-master ([0] nodes joined), reason: new_master {niezp-master}{Jena8SthQXiBtzcs5-y0QQ}{ctySsfBQRp2BgGHXAhj_FQ}{127.0.0.1}{127.0.0.1:9300}
[2017-12-06T15:20:52,356][INFO ][o.e.c.s.ClusterApplierService] [niezp-master] new_master {niezp-master}{Jena8SthQXiBtzcs5-y0QQ}{ctySsfBQRp2BgGHXAhj_FQ}{127.0.0.1}{127.0.0.1:9300}, reason: apply cluster state (from master [master {niezp-master}{Jena8SthQXiBtzcs5-y0QQ}{ctySsfBQRp2BgGHXAhj_FQ}{127.0.0.1}{127.0.0.1:9300} committed version [1] source [zen-disco-elected-as-master ([0] nodes joined)]])
[2017-12-06T15:20:52,375][INFO ][o.e.h.n.Netty4HttpServerTransport] [niezp-master] publish_address {127.0.0.1:9200}, bound_addresses {127.0.0.1:9200}
[2017-12-06T15:20:52,375][INFO ][o.e.n.Node ] [niezp-master] started
[2017-12-06T15:20:52,419][INFO ][o.e.g.GatewayService ] [niezp-master] recovered [0] indices into cluster_state
[2017-12-06T15:20:52,375][INFO ][o.e.n.Node] [niezp-master] started 就說明啟動成功
開啟瀏覽器訪問
#ES的監聽地址,這樣別的機器也可以訪問
network.host: 192.168.174.148
配置過的ip地址加9200埠
{
"name" : "niezp-master",
"cluster_name" : "niezp",
"cluster_uuid" : "q7r5GHy4QsOyN_rKyW1K9A",
"version" : {
"number" : "6.0.0",
"build_hash" : "8f0685b",
"build_date" : "2017-11-10T18:41:22.859Z",
"build_snapshot" : false,
"lucene_version" : "7.0.1",
"minimum_wire_compatibility_version" : "5.6.0",
"minimum_index_compatibility_version" : "5.0.0"
},
"tagline" : "You Know, for Search"
}
返回如下資訊,是不是看著眼熟,name,cluster_name就是我們自定義配置的資訊,至此單機節店就安裝完了,如果啟動報錯
[[email protected] bin]$ sh elasticsearch
[2017-11-23T23:25:41,142][INFO ][o.e.n.Node ] [] initializing ...
[2017-11-23T23:25:41,203][INFO ][o.e.e.NodeEnvironment ] [l2KjKQB] using [1] data paths, mounts [[/ (rootfs)]], net usable_space [28.4gb], net total_space [35.5gb], types [rootfs]
[2017-11-23T23:25:41,204][INFO ][o.e.e.NodeEnvironment ] [l2KjKQB] heap size [989.8mb], compressed ordinary object pointers [true]
[2017-11-23T23:25:41,205][INFO ][o.e.n.Node ] node name [l2KjKQB] derived from node ID [l2KjKQBBSRacQ3kzNB2Qgg]; set [node.name] to override
[2017-11-23T23:25:41,205][INFO ][o.e.n.Node ] version[6.0.0], pid[9359], build[8f0685b/2017-11-10T18:41:22.859Z], OS[Linux/3.10.0-514.26.2.el7.x86_64/amd64], JVM[Oracle Corporation/Java HotSpot(TM) 64-Bit Server VM/1.8.0_121/25.121-b13]
[2017-11-23T23:25:41,205][INFO ][o.e.n.Node ] JVM arguments [-Xms1g, -Xmx1g, -XX:+UseConcMarkSweepGC, -XX:CMSInitiatingOccupancyFraction=75, -XX:+UseCMSInitiatingOccupancyOnly, -XX:+AlwaysPreTouch, -Xss1m, -Djava.awt.headless=true, -Dfile.encoding=UTF-8, -Djna.nosys=true, -XX:-OmitStackTraceInFastThrow, -Dio.netty.noUnsafe=true, -Dio.netty.noKeySetOptimization=true, -Dio.netty.recycler.maxCapacityPerThread=0, -Dlog4j.shutdownHookEnabled=false, -Dlog4j2.disable.jmx=true, -XX:+HeapDumpOnOutOfMemoryError, -Des.path.home=/usr/local/elasticsearch/elasticsearch-6.0.0, -Des.path.conf=/usr/local/elasticsearch/elasticsearch-6.0.0/config]
[2017-11-23T23:25:41,852][INFO ][o.e.p.PluginsService ] [l2KjKQB] loaded module [aggs-matrix-stats]
[2017-11-23T23:25:41,853][INFO ][o.e.p.PluginsService ] [l2KjKQB] loaded module [analysis-common]
[2017-11-23T23:25:41,853][INFO ][o.e.p.PluginsService ] [l2KjKQB] loaded module [ingest-common]
[2017-11-23T23:25:41,853][INFO ][o.e.p.PluginsService ] [l2KjKQB] loaded module [lang-expression]
[2017-11-23T23:25:41,853][INFO ][o.e.p.PluginsService ] [l2KjKQB] loaded module [lang-mustache]
[2017-11-23T23:25:41,853][INFO ][o.e.p.PluginsService ] [l2KjKQB] loaded module [lang-painless]
[2017-11-23T23:25:41,853][INFO ][o.e.p.PluginsService ] [l2KjKQB] loaded module [parent-join]
[2017-11-23T23:25:41,853][INFO ][o.e.p.PluginsService ] [l2KjKQB] loaded module [percolator]
[2017-11-23T23:25:41,853][INFO ][o.e.p.PluginsService ] [l2KjKQB] loaded module [reindex]
[2017-11-23T23:25:41,854][INFO ][o.e.p.PluginsService ] [l2KjKQB] loaded module [repository-url]
[2017-11-23T23:25:41,854][INFO ][o.e.p.PluginsService ] [l2KjKQB] loaded module [transport-netty4]
[2017-11-23T23:25:41,854][INFO ][o.e.p.PluginsService ] [l2KjKQB] loaded module [tribe]
[2017-11-23T23:25:41,854][INFO ][o.e.p.PluginsService ] [l2KjKQB] no plugins loaded
[2017-11-23T23:25:42,794][INFO ][o.e.d.DiscoveryModule ] [l2KjKQB] using discovery type [zen]
[2017-11-23T23:25:43,151][INFO ][o.e.n.Node ] initialized
[2017-11-23T23:25:43,151][INFO ][o.e.n.Node ] [l2KjKQB] starting ...
[2017-11-23T23:25:43,245][INFO ][o.e.t.TransportService ] [l2KjKQB] publish_address {192.168.1.108:9300}, bound_addresses {[::]:9300}
[2017-11-23T23:25:43,253][INFO ][o.e.b.BootstrapChecks ] [l2KjKQB] bound or publishing to a non-loopback or non-link-local address, enforcing bootstrap checks
ERROR: [2] bootstrap checks failed
[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
[2017-11-23T23:25:43,258][INFO ][o.e.n.Node ] [l2KjKQB] stopping ...
[2017-11-23T23:25:43,308][INFO ][o.e.n.Node ] [l2KjKQB] stopped
[2017-11-23T23:25:43,308][INFO ][o.e.n.Node ] [l2KjKQB] closing ...
[2017-11-23T23:25:43,314][INFO ][o.e.n.Node ] [l2KjKQB] closed
重點資訊
ERROR: [2] bootstrap checks failed
[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
這裡需要我們修改
1.max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
修改/etc/security/limits.conf檔案,新增或修改如下行:
* hard nofile 65536
* soft nofile 65536
2.max virtual memory areas vm.max......
修改 /etc/sysctl.conf 檔案,新增如下行:
vm.max_map_count=262144
修改好了以後,呼叫sysctl -a檢視,發現引數並沒有變動,要重啟才可以。
重啟以後,再啟動es即可,就可以通過主機ip訪問。
如果是記憶體不足就需要調整記憶體大小了或者調整config/jvm.options的引數
-Xms1g
-Xmx1g
改為
-Xms512M
-Xmx512M
如果還不行就需要擴充記憶體了。還有很多坑可以參考各種坑
下面說下怎麼安裝head外掛並構成多個節點的叢集,這裡我們先說安裝head外掛,可以說我在安裝是遇到了很多坑,看了很多部落格被誤導,廢了半天時間,下面來說下:
下載外掛:
wget https://github.com/mobz/elasticsearch-head/archive/master.zip
由於執行head需要執行node所以也要下載node,具體版本可以參考node
wget https://npm.taobao.org/mirrors/node/latest-v4.x/node-v4.4.7-linux-x64.tar.gz
tar -zxvf node-v4.4.7-linux-x64.tar.gz
增加以下配置:
JAVA_HOME=/home/soft/jdk1.8.0_131
JRE_HOME=/home/soft/jdk1.8.0_131/jre
NODE_HOME=/home/niezp/ES/node-v0.10.28-linux-x64
CLASS_PATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib
PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin:$NODE_HOME/bin
NODE_PATH=$NODE_HOME/lib/node_modules
export JAVA_HOME JRE_HOME NODE_PATH CLASS_PATH PATH NODE_PATH
修改完儲存並
source /etc/profile
這裡遇到了大坑啊,由於ES啟動時不建議用root賬戶的所以我直接用其他的賬戶登入之後修改,但是不讓改沒許可權,然後我就切換到root修改也source 了,但是在切換回其他賬戶的時候
echo $NODE_HOME
死活是空的,我就納悶了,在看也修改了,這裡就埋下了坑,就直接說解決方案吧,哭死了,必須在用當前賬戶在 source /etc/profile一次才行,在
echo $NODE_HOME
就會輸出配置的資訊,眼淚啊,不熟悉centos的人
安裝grunt
接下來解壓下載的master.zip,進入下載的elasticsearch-head-master,
執行
[root@localnode1 elasticsearch-head-master]#npm install -g grunt-cli
接下來檢查grunt 安裝是否成功
[root@localnode1 elasticsearch-head]# grunt -version
grunt-cli v1.2.0
grunt v0.4.5
輸出版本說明成功
修改head外掛原始碼:
修改伺服器監聽地址:Gruntfile.js
修改修改連線地址:_site/app.js
在elasticsearch-head-master目錄下
[root@localnode1 elasticsearch-head]# npm install
[root@localnode1 elasticsearch-head]# grunt server
啟動成功就可以訪問127.0.0.1:9100就可以看到如下介面
當然是只有一個節點資訊的,具體介面操作就自行學習吧
最後說下叢集部署
分別拷貝下載的es檔案在三個不同的資料夾下,分別配置config/elasticsearch.yml
例項: ES1資料夾下的配置:
# ======================== 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
#
# ------------------------------------ Node ------------------------------------
#
# 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: /path/to/data
#
# Path to log files:
#
#path.logs: /path/to/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: 0.0.0.0
#
# 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 new node is started:
# The default list of hosts is ["127.0.0.1", "[::1]"]
#
#discovery.zen.ping.unicast.hosts: ["host1", "host2"]
#
# 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
# 叢集的名字 必須與其他機器相同
cluster.name: niezp
# 節點名字,必須與其他節點不同
node.name: niezp-slave1
# 修改一下ES的監聽地址,這樣別的機器也可以訪問
network.host: 192.168.174.148
# 不能和其他的節點相同
http.port: 9202
#這裡要說下,這裡的IP地址就是你的mater es的機器ip地址,比如部署在本機可以下127.0.0.1 別的機器就寫別的機器的ip
discovery.zen.ping.unicast.hosts: ["192.168.174.148"]
node.max_local_storage_nodes: 3
# 增加新的引數,這樣head外掛可以訪問es
#http.cors.enabled: true
#http.cors.allow-origin: "*"
例項: ES2資料夾下的配置:
# ======================== 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
#
# ------------------------------------ Node ------------------------------------
#
# 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: /path/to/data
#
# Path to log files:
#
#path.logs: /path/to/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: 0.0.0.0
#
# 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 new node is started:
# The default list of hosts is ["127.0.0.1", "[::1]"]
#
#discovery.zen.ping.unicast.hosts: ["host1", "host2"]
#
# 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
# 叢集的名字 必須與其他機器相同
cluster.name: niezp
# 節點名字,必須與其他節點不同
node.name: niezp-slave2
# 修改一下ES的監聽地址,這樣別的機器也可以訪問
network.host: 192.168.174.148
# 不能和其他的節點相同
http.port: 9201
#同例項1說明
discovery.zen.ping.unicast.hosts: ["192.168.174.148"]
node.max_local_storage_nodes: 3
# 增加新的引數,這樣head外掛可以訪問es
#http.cors.enabled: true
#http.cors.allow-origin: "*"
這樣啟動三個節點之後就能在head中看到如下介面
就已經搭建完成了叢集
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