diff options
| author | Costa Tsaousis (ktsaou) <costa@tsaousis.gr> | 2017-11-07 02:38:47 +0200 |
|---|---|---|
| committer | Costa Tsaousis (ktsaou) <costa@tsaousis.gr> | 2017-11-07 02:38:47 +0200 |
| commit | 5185f1dc53be5bee2ca55c66e78bab90da22f3a4 (patch) | |
| tree | 032d1d6894672652147b6bb2df30cf29d2e027e2 /conf.d/health.d | |
| parent | 234c746b34c232ed36b925cf20c871d6e7029dde (diff) | |
added orphans percentage alarm; fixes #14
Diffstat (limited to 'conf.d/health.d')
| -rw-r--r-- | conf.d/health.d/tcp_orphans.conf | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/conf.d/health.d/tcp_orphans.conf b/conf.d/health.d/tcp_orphans.conf new file mode 100644 index 0000000000..77ee15b70e --- /dev/null +++ b/conf.d/health.d/tcp_orphans.conf @@ -0,0 +1,21 @@ + +# +# 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_percentage + 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 out-of-socket-memory errors) + to: sysadmin |