centos7下elasitcsearch7集群安装

1、下载

oracle java11.rpm
es7.2.rpm
kibana.rpm
下载个： https://github.com/lmenezes/cerebro 后面配置要简单的多
chrome 下载个 header插件，

 

2、准备环境

#追加 /etc/security/limits.conf

echo " " >> /etc/security/limits.conf
echo "#elasticsearch bootstrap lock" >> /etc/security/limits.conf
echo "elasticsearch soft memlock unlimited" >> /etc/security/limits.conf
echo "elasticsearch hard memlock unlimited" >> /etc/security/limits.conf
echo "#下面这个可以替代上面面2个" >> /etc/security/limits.conf
echo "elasticsearch - memlock unlimited" >> /etc/security/limits.conf
echo "#elasticsearch limit file" >> /etc/security/limits.conf
echo "* soft nofile 65536" >> /etc/security/limits.conf
echo "* hard nofile 65536" >> /etc/security/limits.conf

 

# 追加

echo "#elasticsearch counts" >> /etc/sysctl.conf
echo "vm.max_map_count = 262144" >> /etc/sysctl.conf

 

#修改 用户的limit

cd /etc/security/limits.d
ls

##看看，数字开头的。。。xx-nproc.conf 把下面改下

echo "#elasticsearch thread limit"
echo "elasticsearch - nproc 2048" >> /etc/security/limits.d/20-nproc.conf
#生效
sysctl -p

#修改下 这个不然rpm 安装的还是报错 bootstrap lock xxx

## 细节看https://www.elastic.co/guide/en/elasticsearch/reference/current/setting-system-settings.html#systemd

 

在/etc/systemd/system/elasticsearch.service.d目录下创建一个文件override.conf，（或者sudo systemctl edit elasticsearch ，我用了这个）并添加下列内容

[Service]
LimitMEMLOCK=infinity

生效 

sudo systemctl daemon-reload 

 

#创建目录

mkdir /opt/hdisk/es72/data
mkdir /opt/hdisk/es72/logs
chown -R elasticsearch:elasticsearch /opt/hdisk/es72

 

3、安装

#java

rpm -ivh java11.rpm

 

#看看安装在哪里

cd /usr/java .
ll -s

一般default 会已经指向你新安装的java11了

 

vi /etc/profile
##最后追加环境
export JAVA_HOME=/usr/java/default
export JRE_HOME=$JAVA_HOME/jre
export CLASSPATH=$JAVA_HOME/lib
export PATH=:$PATH:$JAVA_HOME/bin:$JRE_HOME/bin

 

#es7

rpm -ivh es72.rpm
##自动启动
sudo /bin/systemctl daemon-reload
sudo /bin/systemctl enable elasticsearch.service

 

#在master 上安装 kibana

rpm -ivh kibana.rpm
##自动启动
sudo /bin/systemctl daemon-reload
sudo /bin/systemctl enable kibana.service

　　

4、配置

#es

1个主，2个数据节点

 

##master

 

vi /etc/elasticsearch/elasticsearch.conf
#
# ---------------------------------- Cluster -----------------------------------
#
cluster.name: es72clt
#
# ------------------------------------ Node ------------------------------------
#
node.name: node237
#主节点，
node.master: true
#主节点，就不要存数据了
node.data: false
#node.attr.rack: r1
#
# ----------------------------------- Paths ------------------------------------
#
path.data: /opt/hdisk/es72/data
path.logs: /opt/hdisk/es72/logs
#
# ----------------------------------- Memory -----------------------------------
#
bootstrap.memory_lock: true
#
#
# ---------------------------------- Network -----------------------------------
#
network.host: 0.0.0.0
#http.port: 9200
#
# --------------------------------- Discovery ----------------------------------
#
# The default list of hosts is ["127.0.0.1", "[::1]"]
#
#主节点才有这行
cluster.initial_master_nodes: ["192.168.1.237:9300"]
#7.2，是数据节点自己去主节点上注册，和以前不一样
discovery.seed_hosts: ["192.168.1.237:9300"]
#
#
# ---------------------------------- Gateway -----------------------------------
#
#
#gateway.recover_after_nodes: 3
#
#
# ---------------------------------- Various -----------------------------------
#
#action.destructive_requires_name: true
# ---------------------------------- xpack -----------------------------------
#
xpack.security.enabled: true
xpack.security.transport.ssl.enabled: true
xpack.security.transport.ssl.verification_mode: certificate
xpack.security.transport.ssl.keystore.path: elastic-certificates.p12
xpack.security.transport.ssl.truststore.path: elastic-certificates.p12
 

 

##node1

vi /etc/elasticsearch/elasticsearch.conf

#
# ---------------------------------- Cluster -----------------------------------
#
cluster.name: es72clt
#
# ------------------------------------ Node ------------------------------------
#
node.name: node238
#主节点，
node.master: false
#主节点，就不要存数据了
node.data: true
#node.attr.rack: r1
#
# ----------------------------------- Paths ------------------------------------
#
path.data: /opt/hdisk/es72/data
path.logs: /opt/hdisk/es72/logs
#
# ----------------------------------- Memory -----------------------------------
#
bootstrap.memory_lock: true
#
#
# ---------------------------------- Network -----------------------------------
#
network.host: 0.0.0.0
#http.port: 9200
#
# --------------------------------- Discovery ----------------------------------
#
# The default list of hosts is ["127.0.0.1", "[::1]"]
#
#主节点才有这行
#cluster.initial_master_nodes: ["192.168.1.237:9300"]
#7.2，是数据节点自己去主节点上注册，和以前不一样
discovery.seed_hosts: ["192.168.1.237:9300"]
#
#
# ---------------------------------- Gateway -----------------------------------
#
#
#gateway.recover_after_nodes: 3
#
#
# ---------------------------------- Various -----------------------------------
#
#action.destructive_requires_name: true
# ---------------------------------- xpack -----------------------------------
#
xpack.security.enabled: true
xpack.security.transport.ssl.enabled: true
xpack.security.transport.ssl.verification_mode: certificate
xpack.security.transport.ssl.keystore.path: elastic-certificates.p12
xpack.security.transport.ssl.truststore.path: elastic-certificates.p12

 

##xpack 认证安装

###找到master (node237)
####执行
/usr/share/elasticsearch/bin/elasticsearch-certutil -out /etc/elasticsearch/elastic-certificates.p12 -pass ""
 
####拷贝认证到其他机器上
scp 192.168.1.237:/etc/elasticsearch/elastic-certificates.p12 /etc/elasticsearch/
 
####所有机器上改权限
chown -R /etc/elasticsearch/elastic-certificates.p12

 

#jvm 这个还没有测试

vi /etc/elasticsearch/jvm.opitons
 
##设置成为机器内存的一半，这个我一般怎么干，es7的版本不知道了
-Xms16g
-Xmx16g

 

4、启动

如果你运气够好

#sudo systemctl start elasticsearch.service
service elasticsearch start

如果运气一般么,自己google

tail -100 /opt/hdisk/es72/logs/es72ctl.log

 

5、设置密码

主机上

###到主机上，生成密码
####！！一旦主节点开始运行，便可以为集群设置密码了
/usr/share/elasticsearch/bin/elasticsearch-setup-passwords auto
#### ！！拷贝下来

 主机上

vi /etc/kibana/kibana.conf
##找到用户名密码哪里，把上面的生成的kibana密码输入到里面
#sudo systemctl start kibana.service
service kibana start

 自己机器上测试下

###登陆 http://192.168.1.237:5601
##输入 用户:elastic 密码： 生成的密码里面找 .
##进去以后就可以管理用户了