手册:$wgMaxShellMemory

终端和进程控制: $wgMaxShellMemory
Maximum amount of virtual memory available to shell processes under Linux, in KiB.
引进版本：	1.7.0 (r14795)
移除版本：	仍在使用
允许的值：	(integer)
默认值：	307200 (1.22+) gerrit:91833 102400 (1.7-1.21)
其他设置： 按首字母排序 | 按功能排序

默认

// Maximum amount of virtual memory available to shell processes under Linux, in KiB.
$wgMaxShellMemory = 307200;

1 KiB = 1024 B, 102400 KiB = 100 MiB, 307200 KiB = 300 MiB, etc.

详情

Under Linux, shell commands are executed with the time and memory limits given by $wgMaxShellTime and $wgMaxShellMemory. Setting either variable to 0 will disable both limits.

If generating thumbnails with ImageMagick fails with a web server error log message like "Memory allocation failed" or "/bin/ulimit4.sh: Segmentation fault /usr/bin/convert ..." or "convert: Unable to extend cache ...", the $wgMaxShellMemory value may need to be increased.

If using Batik to render SVG graphics on some systems, this value needs to be raised in order for the extension to function. (The phrase "Could not create the Java virtual machine." may appear in Apache error log if this problem is occurring.)

參見

• $wgMaxShellFileSize - Maximum file size created by shell processes under linux
• $wgMaxShellTime - Maximum time allowance for Linux shell processes
• $wgShellCgroup - Use cgroups instead of ulimit -v to control memory usage, which is more reliable.