linux下启动elsearch具体步骤：

#创建用户组和用户

groupadd elsearch

useradd elsearch -g elsearch -p 56009195

#更改 elasticsearch 文件夹及内部文件的所属用户及组为elsearch

chown -R elsearch:elsearch elasticsearch

chown -R elsearch:elsearch /usr/local/aenvforrun/elasticsearch

#切换用户并启动 elasticsearch

su elsearch

cd /usr/local/aenvforrun/elasticsearch/bin/

#前台启动，接 ctrl + c 停止elasticsearch服务

./elasticsearch

#后台启动，需要停止服务的话就用kill命令了

./elasticsearch -d

Unable to lock JVM Memory: error=12, reason=无法分配内存

[2024-11-28T17:05:24,531][WARN ][o.e.n.NativeAccess       ] [localhost.localdomain] This can result in part of the JVM being swapped out.

[2024-11-28T17:05:24,532][WARN ][o.e.n.NativeAccess       ] [localhost.localdomain] Increase RLIMIT_MEMLOCK, soft limit: 65536, hard limit: 65536

[2024-11-28T17:05:24,532][WARN ][o.e.n.NativeAccess       ] [localhost.localdomain] These can be adjusted by modifying /etc/security/limits.conf, for example:

        # allow user 'elsearch' mlockall

        elsearch soft memlock unlimited

        elsearch hard memlock unlimited

经过测试有效的方案

下面是根据[1]修改的

修改的文件文件 修改内容

/etc/security/limits.conf

appleyuchi soft nofile 65536

appleyuchi hard nofile 65536

appleyuchi soft nproc 32000

appleyuchi hard nproc 32000

appleyuchi soft memlock unlimited

appleyuchi hard memlock unlimited

或者上面的appleyuchi全部改成*

需要注销后生效

/etc/sysctl.conf

vm.max_map_count=262144

vm.swappiness=0

生效命令

sysctl -p