diff options
| author | Austin S. Hemmelgarn <ahferroin7@gmail.com> | 2019-11-05 11:23:44 -0500 |
|---|---|---|
| committer | Ilya Mashchenko <ilya@netdata.cloud> | 2019-11-05 19:23:44 +0300 |
| commit | ec9b2632a2fe02fa14a51b821d7974f153cbf8af (patch) | |
| tree | 936f67b390aad5c2d511e618771fb777647cb64c /health | |
| parent | c375ba2d98d301ec12d0bf9d7780811b7927d455 (diff) | |
Update SYN cookie alarm to be less aggressive. (#7250)
* Update SYN cookie alarm to be less aggressive.
Based on discussion from #6998
* Update SYN queue overflow alarm the same way.
Diffstat (limited to 'health')
| -rw-r--r-- | health/health.d/tcp_listen.conf | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/health/health.d/tcp_listen.conf b/health/health.d/tcp_listen.conf index 552930ab7c..5ac1aa8e00 100644 --- a/health/health.d/tcp_listen.conf +++ b/health/health.d/tcp_listen.conf @@ -58,12 +58,12 @@ on: ip.tcp_syn_queue os: linux hosts: * - lookup: sum -60s unaligned absolute of TCPReqQFullDrop + lookup: average -60s unaligned absolute of TCPReqQFullDrop units: drops every: 10s - warn: $this > 0 - crit: $this > (($status == $CRITICAL) ? (0) : (60)) - delay: up 0 down 5m multiplier 1.5 max 1h + warn: $this > 1 + crit: $this > (($status == $CRITICAL) ? (0) : (5)) + delay: up 10 down 5m multiplier 1.5 max 1h info: the number of times the TCP SYN queue of the kernel was full and dropped packets, during the last minute to: sysadmin @@ -71,12 +71,12 @@ on: ip.tcp_syn_queue os: linux hosts: * - lookup: sum -60s unaligned absolute of TCPReqQFullDoCookies + lookup: average -60s unaligned absolute of TCPReqQFullDoCookies units: cookies every: 10s - warn: $this > 0 - crit: $this > (($status == $CRITICAL) ? (0) : (60)) - delay: up 0 down 5m multiplier 1.5 max 1h + warn: $this > 1 + crit: $this > (($status == $CRITICAL) ? (0) : (5)) + delay: up 10 down 5m multiplier 1.5 max 1h info: the number of times the TCP SYN queue of the kernel was full and sent SYN cookies, during the last minute to: sysadmin |