FM / entropy

/var/lib/pcp/config/pmieconf/entropy

Name	Size	Mode	Actions
available	1155	0644	edit dl rm

Edit: /etc/pcp/pmieconf/entropy/available (1155B)

#pmieconf-rules 1
# --- DO NOT MODIFY THIS FILE --- see pmieconf(5)
#

rule	entropy.available
	summary	= "$rule$"
	enumerate = hosts
	predicate =
"some_host (
	( 100 * kernel.all.entropy.avail $hosts$ /
          kernel.all.entropy.poolsize $hosts$ ) >= 0 &&
	( kernel.all.entropy.avail <= $threshold$ )
)"
	enabled	= yes
	version	= 1
	help	=
"Available entropy for random number generation is significantly
depleted, and requests for random numbers will stall completely,
or suffer reduction in quality, depending on the interface being
used (/dev/random or /dev/urandom).";

string	rule
	default	= "Low random number entropy available"
	modify	= no
	display	= no;

unsigned	threshold
	default	= 150
	help	=
"The threshold of entropy remaining available from the pool, in
the range zero (none) to kernel.all.entropy.poolsize (plenty).";

string	delta
	default = "2 min"
	help =
"Sample interval between evaluations of this rule.";

string	action_expand
	default	= "%v%avail@%h"
	display	= no
	modify	= no;

string	email_expand
	default	= "host: %h entropy available: %v%"
	display	= no
	modify	= no;

#
# --- DO NOT MODIFY THIS FILE --- see pmieconf(5)

cmd: