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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 11:08:07 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 11:08:07 +0000
commitc69cb8cc094cc916adbc516b09e944cd3d137c01 (patch)
treef2878ec41fb6d0e3613906c6722fc02b934eeb80 /health/health.d/tcp_orphans.conf
parentInitial commit. (diff)
downloadnetdata-c69cb8cc094cc916adbc516b09e944cd3d137c01.tar.xz
netdata-c69cb8cc094cc916adbc516b09e944cd3d137c01.zip
Adding upstream version 1.29.3.upstream/1.29.3upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'health/health.d/tcp_orphans.conf')
-rw-r--r--health/health.d/tcp_orphans.conf21
1 files changed, 21 insertions, 0 deletions
diff --git a/health/health.d/tcp_orphans.conf b/health/health.d/tcp_orphans.conf
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+
+#
+# check
+# http://blog.tsunanet.net/2011/03/out-of-socket-memory.html
+#
+# The kernel may penalize orphans by 2x or even 4x
+# so we alarm warning at 25% and critical at 50%
+#
+
+ alarm: tcp_orphans
+ on: ipv4.sockstat_tcp_sockets
+ os: linux
+ hosts: *
+ calc: ${orphan} * 100 / ${tcp_max_orphans}
+ units: %
+ every: 10s
+ warn: $this > (($status >= $WARNING ) ? ( 20 ) : ( 25 ))
+ crit: $this > (($status >= $CRITICAL) ? ( 25 ) : ( 50 ))
+ delay: up 0 down 5m multiplier 1.5 max 1h
+ info: the percentage of orphan IPv4 TCP sockets over the max allowed (this may lead to too-many-orphans errors)
+ to: sysadmin