unreliablefs.conf —
format of the configuration file used by
unreliablefs(1)
The configuration file format is quite simple. Sections are
delimited by square brackets:
[Section]
And options within brackets sections are simple key value
pairs:
Option = Value
Per-fault-injection customizable variables are specified within
sections with section names matching the fault-injection name.
Supported fault injections are:
errinj_noop- File operation replaced with no-op.
errinj_kill_caller- Send SIGKILL signal to a process that invoked file operation.
errinj_errno- Set random errno. errno(2) limited by supported
errno's.
errinj_slowdown- File operation slowdown for nanoseconds specified by duration
parameter.
The options are:
op_regexp- Sets the regular expression that matches file operation for what fault
injection is applicable. Option uses format of regular expressions
described in re_format(7). POSIX Extended Regular
Expression syntax is supported and regular expressions do not
differentiate case.
path_regexp- Sets the regular expression that matches paths where fault injection is
applicable. Option uses format of regular expressions described in
re_format(7). POSIX Extended Regular Expression syntax
is supported and regular expressions do not differentiate case.
probability- Sets the probability in percents. Probability equal to 0 means that error
injection will never happen. Probability equal to 100 means that error
injection will happen on each file operation.
duration- Sets the duration of file operation slowdown. Applicable to
errinj_slowdown only.
[errinj_noop]
path_regexp = .*
op_regexp = .*
probability = 70
[errinj_errno]
path_regexp = *.xlog
probability = 4