elasticsearch下载安装

下载

https://www.elastic.co/cn/downloads/elasticsearch

 

 安装

tar -zxvf elasticsearch-8.5.2-linux-x86_64.tar.gz
cd elasticsearch-8.5.2/bin

elasticsearch-8.5.2/config/elasticsearch.yml
network.host: 0.0.0.0 #修改配置文件，使外网可以访问
./elasticsearch -d #进入bin目录下，后台启动ES

curl localhost:9200 #访问

报错及处理

ERROR: [1] bootstrap checks failed. You must address the points described in the following [1] lines before starting Elasticsearch

 

 

[1]: max file descriptors [65535] for elasticsearch process is too low, increase to at least [65536]
编辑 /etc/security/limits.conf，追加以下内容；

#*               soft    core            0
#*               hard    rss             10000
* soft nofile 65536
* hard nofile 65536

此文件修改后需要重新登录用户，才会生效

[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

编辑 /etc/sysctl.conf，追加以下内容：

vm.max_map_count=655360
保存后，执行：sysctl -p