我正在尝试从MariaDB服务器运行python脚本。 我已经为此安装了mysqludf库。 我正在尝试使用sys_exec函数运行脚本，但是没有结果。 我已经创建了测试文件，它只是一个带有信息“ DONE”的.txt文件。

我以root用户身份执行命令，因此我拥有所有特权。 运行命令：

SELECT sys_exec('python3 /home/Documents/test.py')

不执行任何操作并返回错误代码512。运行命令：

SELECT sys_exec('sudo python3 /home/Documents/test.py')

返回错误代码256。

我已经检查了apparmor的状态，似乎没有什么问题：

apparmor module is loaded.

42 profiles are loaded.

40 profiles are in enforce mode.

/sbin/dhclient

/snap/core/4486/usr/lib/snapd/snap-confine

/snap/core/4486/usr/lib/snapd/snap-confine//mount-namespace-capture-helper

/snap/core/6964/usr/lib/snapd/snap-confine

/snap/core/6964/usr/lib/snapd/snap-confine//mount-namespace-capture-helper

/snap/core/7169/usr/lib/snapd/snap-confine

/snap/core/7169/usr/lib/snapd/snap-confine//mount-namespace-capture-helper

/snap/core/7270/usr/lib/snapd/snap-confine

/snap/core/7270/usr/lib/snapd/snap-confine//mount-namespace-capture-helper

/usr/bin/evince

/usr/bin/evince-previewer

/usr/bin/evince-previewer//sanitized_helper

/usr/bin/evince-thumbnailer

/usr/bin/evince//sanitized_helper

/usr/bin/man

/usr/lib/NetworkManager/nm-dhcp-client.action

/usr/lib/NetworkManager/nm-dhcp-helper

/usr/lib/connman/scripts/dhclient-script

/usr/lib/cups/backend/cups-pdf

/usr/lib/snapd/snap-confine

/usr/lib/snapd/snap-confine//mount-namespace-capture-helper

/usr/sbin/cups-browsed

/usr/sbin/cupsd

/usr/sbin/cupsd//third_party

/usr/sbin/ippusbxd

/usr/sbin/tcpdump

man_filter

man_groff

snap-update-ns.core

snap-update-ns.eclipse

snap-update-ns.gnome-calculator

snap-update-ns.gnome-characters

snap-update-ns.gnome-logs

snap-update-ns.gnome-system-monitor

snap-update-ns.pycharm-community

snap.core.hook.configure

snap.gnome-calculator.gnome-calculator

snap.gnome-characters.gnome-characters

snap.gnome-logs.gnome-logs

snap.gnome-system-monitor.gnome-system-monitor

2 profiles are in complain mode.

snap.eclipse.eclipse

snap.pycharm-community.pycharm-community

4 processes have profiles defined.

4 processes are in enforce mode.

/sbin/dhclient (734)

/usr/sbin/cups-browsed (33904)

/usr/sbin/cupsd (33899)

/usr/sbin/cupsd (33928)

0 processes are in complain mode.

0 processes are unconfined but have a profile defined.

我还仔细检查了root是否具有sudo特权，如果确实如此。

是什么原因引起的？ 有什么方法可以从MariaDB Server运行python脚本吗？