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authorDaniel Baumann <daniel.baumann@progress-linux.org>2018-11-07 12:19:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2018-11-07 12:20:17 +0000
commita64a253794ac64cb40befee54db53bde17dd0d49 (patch)
treec1024acc5f6e508814b944d99f112259bb28b1be /health/health.d/tcp_mem.conf
parentNew upstream version 1.10.0+dfsg (diff)
downloadnetdata-a64a253794ac64cb40befee54db53bde17dd0d49.tar.xz
netdata-a64a253794ac64cb40befee54db53bde17dd0d49.zip
New upstream version 1.11.0+dfsgupstream/1.11.0+dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'health/health.d/tcp_mem.conf')
-rw-r--r--health/health.d/tcp_mem.conf20
1 files changed, 20 insertions, 0 deletions
diff --git a/health/health.d/tcp_mem.conf b/health/health.d/tcp_mem.conf
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+#
+# 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