elastic search服务搭建

安装java

升级gc

sudo yum install centos-release-scl
sudo yum install devtoolset-8-gcc*
scl enable devtoolset-8 bash
gcc -v

切换gc到新版

mv /usr/bin/gcc /usr/bin/gcc-4.8.5

ln -s /opt/rh/devtoolset-8/root/bin/gcc /usr/bin/gcc

mv /usr/bin/g++ /usr/bin/g++-4.8.5

ln -s /opt/rh/devtoolset-8/root/bin/g++ /usr/bin/g++

gcc --version

g++ --version

下载java11安装包

• 下载地址 https://www.oracle.com/java/technologies/downloads/#java11
• orcale共享账号 1602404824@qq.com wf1996ROOT#

解压java包，配置环境变量

tar -zxvf jdk-11.0.13_linux-x64_bin.tar.gz
mv jdk-11.0.13 jdk11
mv /opt/jdk11 /usr/local/lib/
vim /etc/profile
# profile文件
export JAVA_HOME=/usr/local/lib/jdk11
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAV_HOME/lib/tools.jar
export PATH=$JAVA_HOME/bin:$PATH
source /opt/rh/devtoolset-8/enable
# profile生效
source /etc/profile
# environmentJAVA_HOME环境变量
JAVA_HOME="/usr/local/lib/jdk11"
# environment生效
source /etc/environment
# 检查环境变量是否生效
echo $JAVA_HOME

安装elasticsearch

下载解压

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.5.1.zip
unzip elasticsearch-5.5.1.zip
cd elasticsearch-5.5.1/ 

es禁止root账号使用，新建用户

# 创建新用户
useradd elastic
# 设置密码
passwd elastic
# 切换用户
su elastic

启动es

./bin/elasticsearch
# 如果这时报错"max virtual memory areas vm.maxmapcount [65530] is too low"，要运行下面的命令,然后再启动。
sudo sysctl -w vm.max_map_count=262144

外网访问

# elasticsearch.yml配置文件
network.host: 0.0.0.0

开放9200端口，外网访问xxxx:9200

{
  "name" : "HYRvkyI",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "LUQln_DXTl27-EjUvc67dw",
  "version" : {
    "number" : "5.5.1",
    "build_hash" : "19c13d0",
    "build_date" : "2017-07-18T20:44:24.823Z",
    "build_snapshot" : false,
    "lucene_version" : "6.6.0"
  },
  "tagline" : "You Know, for Search"
}

原创 https://www.cnblogs.com/jixiaohua/p/11732225.html
https://www.cnblogs.com/zk2020/p/15717411.html
https://www.ruanyifeng.com/blog/2017/08/elasticsearch.html