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author | Ilya Mashchenko <ilyamaschenko@gmail.com> | 2018-11-27 14:50:14 +0300 |
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committer | Chris Akritidis <43294513+cakrit@users.noreply.github.com> | 2018-11-27 12:50:14 +0100 |
commit | 622d2faf28550ce37755b71ab4685d2848271a34 (patch) | |
tree | 32819c8505f73e93dabd5048a0874496d0a6c4c0 | |
parent | e32db756a7730310fca24a48b27b9d2c1a679af0 (diff) |
web_log: add alarm on unmatched lines (#4757)
-rw-r--r-- | health/health.d/web_log.conf | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/health/health.d/web_log.conf b/health/health.d/web_log.conf index d8be88b47f..031adc2eac 100644 --- a/health/health.d/web_log.conf +++ b/health/health.d/web_log.conf @@ -85,6 +85,36 @@ families: * info: the ratio of HTTP internal server errors (5xx), over the last minute to: webmaster +# unmatched lines + +# the following alarms trigger only when there are enough data. +# we assume there are enough data when: +# +# $1m_total_requests > 120 +# +# i.e. when there are at least 120 requests during the last minute + +template: 1m_total_requests + on: web_log.response_codes +families: * + lookup: sum -1m unaligned + calc: ($this == 0)?(1):($this) + units: requests + every: 10s + info: the sum of all HTTP requests over the last minute + +template: 1m_unmatched +on: web_log.response_codes +families: * + lookup: sum -1m unaligned of unmatched + calc: $this * 100 / $1m_total_requests + units: % + every: 10s + warn: ($1m_total_requests > 120) ? ($this > 1) : ( 0 ) + crit: ($1m_total_requests > 120) ? ($this > 5) : ( 0 ) + delay: up 1m down 5m multiplier 1.5 max 1h + info: the ratio of unmatched lines, over the last minute + to: webmaster # ----------------------------------------------------------------------------- # web slow |