Elasticsearch
1. 下载地址
https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.3.0-linux-x86_64.tar.gz
2. 上传tar包并解压
tar -zxvf elasticsearch-7.3.0-linux-x86_64.tar.gz
3. 设置权限
chmod -R 777 elasticsearch-7.3.0
4. 添加非root用户 adduser wulei && passwd wulei
参考https://blog.csdn.net/u010454261/article/details/70227164/
5. 切换登陆用户(不能root启动，会报错)
su - wulei
6. 启动 cd /elasticsearch-7.3.0/bin
./elasticsearch
后台启动1
./elasticsearch -d
后台启动方式2
nohup ./elasticserach &
7. 检查是否启动成功 curl localhost:9200
8. 关闭
ps -ef | grep elasticsearch
kill -9 pid
【启动报错】ES7.3.0 必须是jdk11+，我们是jdk8，启动就失败
[wulei@node2 bin]$ ./elasticsearch future versions of Elasticsearch will require Java 11; your Java version from [/usr/local/wulei/jdk8/jre] does not meet this requirement
1. 下载jdk https://download.java.net/java/GA/jdk11/13/GPL/openjdk-11.0.1_linux-x64_bin.tar.gz
2. 解压 tar -zxvf openjdk-11.0.1_linux-x64_bin.tar.gz //我是解压在 /usr/local/wulei/elasticsearch-7.3.0/jdk-11.0.1
3. 修改配置 vim elasticsearch-7.3.0/bin/elasticsearch
# 添加一下几行内容，配置自己的jdk11(配置如下图，下面的缩进不要用tab 否则会找不到，用空格就好了)
export JAVA_HOME=/usr/local/wulei/elasticsearch-7.3.0/jdk-11.0.1
export PATH=$JAVA_HOME/bin:$PATH
#添加jdk判断
if [ -x "$JAVA_HOME/bin/java" ]; then
JAVA="/usr/local/wulei/elasticsearch-7.3.0/jdk-11.0.1/bin/java"
else
JAVA=`which java`
fi
4. 修改为g1垃圾回收，否则启动报错 vim elasticsearch-7.3.0/config/jvm.options
将： -XX:+UseConcMarkSweepGC 改为：-XX:+UseG1GC
== 再重新启动es就成功了
。