【JeecgBoot安装调试】window docker启动容器max virtual memory areas vm.max_map_count [65530] is too low

docker启动时报如下错误：

2023-08-21 14:53:15 ERROR: [1] bootstrap checks failed
2023-08-21 14:53:15 [1]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
2023-08-21 14:53:15 [2023-08-21T06:53:15,997][INFO ][o.e.n.Node               ] [kSlC9zU] stopping ...
2023-08-21 14:53:16 [2023-08-21T06:53:16,040][INFO ][o.e.n.Node               ] [kSlC9zU] stopped
2023-08-21 14:53:16 [2023-08-21T06:53:16,040][INFO ][o.e.n.Node               ] [kSlC9zU] closing ...
2023-08-21 14:53:16 [2023-08-21T06:53:16,062][INFO ][o.e.n.Node               ] [kSlC9zU] closed

 原因是docker启动的linux虚拟内存设置不足，解决办法是修改docker虚拟内存设置：

PS C:\Windows\system32> wsl -d docker-desktop
DESKTOP-UFF8UKI:/mnt/host/c/Windows/system32# sysctl -w vm.max_map_count=262144
vm.max_map_count = 262144
DESKTOP-UFF8UKI:/mnt/host/c/Windows/system32# exit

修改后可以正常启动

vm.max_map_count限制了一个进程可以拥有的虚拟内存区域（VMA）的数量

固化vm.max_map_count内核参数的办法：修改/etc/wsl.conf内容

PS C:\Windows\system32> wsl
DESKTOP-UFF8UKI:/mnt/host/c/Windows/system32# cd /
DESKTOP-UFF8UKI:/# cd /etc
DESKTOP-UFF8UKI:/etc# ls
alpine-release   group            modprobe.d       opt              protocols        shells           wsl.conf
apk              hostname         modules          os-release       resolv.conf      ssl
busybox-paths.d  hosts            modules-load.d   pam.d            secfixes.d       ssl1.1
conf.d           init.d           motd             passwd           securetty        sysctl.conf
crontabs         inittab          mtab             periodic         security         sysctl.d
environment      issue            network          profile          services         terminfo
fstab            logrotate.d      nsswitch.conf    profile.d        shadow           udhcpd.conf
DESKTOP-UFF8UKI:/etc# vi wsl.conf

修改/etc/wsl.conf内容：

[boot]
command="sysctl -w vm.max_map_count=262144"

 

以下设置经测试重启失效，改用修改/etc/wsl.conf的方法。

PS C:\Windows\system32> wsl su -
DESKTOP-UFF8UKI:~# sysctl vm.max_map_count
vm.max_map_count = 65530
DESKTOP-UFF8UKI:~# vi /etc/sysctl.conf
DESKTOP-UFF8UKI:~# sysctl -p
vm.max_map_count = 262144
DESKTOP-UFF8UKI:~# sysctl vm.max_map_count
vm.max_map_count = 262144

其中通过vi编辑器向/etc/sysctl.conf中填写如下内容：

vm.max_map_count = 262144