blob: 6927d57652a428f496ad93aeef8c6416fa1eb19a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
|
#
# check
# http://blog.tsunanet.net/2011/03/out-of-socket-memory.html
#
# We give a warning when TCP is under memory pressure
# and a critical when TCP is 90% of its upper memory limit
#
alarm: tcp_memory
on: ipv4.sockstat_tcp_mem
os: linux
hosts: *
calc: ${mem} * 100 / ${tcp_mem_high}
units: %
every: 10s
warn: ${mem} > (($status >= $WARNING ) ? ( ${tcp_mem_pressure} * 0.8 ) : ( ${tcp_mem_pressure} ))
crit: ${mem} > (($status >= $CRITICAL ) ? ( ${tcp_mem_pressure} ) : ( ${tcp_mem_high} * 0.9 ))
delay: up 0 down 5m multiplier 1.5 max 1h
info: the amount of TCP memory as a percentage of its max memory limit
to: sysadmin
|
