3.3.3 Resources

Config: component: limits string

Impose limits on system resources, as defined by the string argument. It consists of commands, optionally separated by any amount of whitespace. A command is a single command letter followed by a number, that specifies the limit. The command letters are case-insensitive and coincide with those used by the shell ulimit utility:

Command	The limit it sets
A	max address space (KB)
C	max core file size (KB)
D	max data size (KB)
F	maximum file size (KB)
M	max locked-in-memory address space (KB)
N	max number of open files
R	max resident set size (KB)
S	max stack size (KB)
T	max CPU time (MIN)
U	max number of processes
P	process priority -20..20 (negative = high priority)

Table 3.2: Limit Command Letters

For example:

limits T10 R20 U16 P20

Additionally, the command letter ‘L’ is recognized. It is reserved for future use (‘number of logins’ limit) and is ignored in version 1.8.

Config: component: umask number

Set the umask. The number must be an octal value not greater than ‘777’. The default umask is inherited at startup.

Config: component: max-instances n

Sets the maximum number of simultaneously running instances of this component.