From 8020f71afd34d7696d7933659df2d763ab05542f Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 4 May 2024 16:31:17 +0200
Subject: Adding upstream version 1.37.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 health/health.d/tcp_mem.conf | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 health/health.d/tcp_mem.conf

(limited to 'health/health.d/tcp_mem.conf')

diff --git a/health/health.d/tcp_mem.conf b/health/health.d/tcp_mem.conf
new file mode 100644
index 0000000..318be20
--- /dev/null
+++ b/health/health.d/tcp_mem.conf
@@ -0,0 +1,23 @@
+#
+# 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
+    class: Utilization
+     type: System
+component: Network
+       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: TCP memory utilization
+       to: sysadmin
-- 
cgit v1.2.3