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Added sanity checks to the Redis reads/writes exceeded alert (#9906)

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Manuel Ceroni 2025-12-19 09:44:50 +01:00 • committed by GitHub
parent 6c9f3ed8dc
commit 16a021ff58
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1 changed files with 21 additions and 9 deletions
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30
scripts/lua/modules/check_definitions/system/redis_reads_writes_exceeded.lua
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@ -1,5 +1,5 @@
--
-- (C) 2019-24 - ntop.org
-- (C) 2019-25 - ntop.org
--
local alert_consts = require("alert_consts")
@ -7,16 +7,16 @@ local alerts_api = require("alerts_api")
local alert_categories = require "alert_categories"
local script = {
-- Script category
category = alert_categories.internals,
severity = alert_consts.get_printable_severities().warning,
-- Script category
category = alert_categories.internals,
severity = alert_consts.get_printable_severities().warning,
hooks = {},
hooks = {},
gui = {
i18n_title = "alerts_dashboard.redis_reads_writes_exceeded",
i18n_description = "alerts_dashboard.redis_reads_writes_exceeded_descr",
}
gui = {
i18n_title = "alerts_dashboard.redis_reads_writes_exceeded",
i18n_description = "alerts_dashboard.redis_reads_writes_exceeded_descr",
}
}
-- #################################################################
@ -40,6 +40,18 @@ local function check_redis_reads_writes_exceeded(params)
schema = 'redis:reads_writes_v2'
}
local ts = ts_utils.timeseries_query(options)
-- Sanity checks
if not ts
or not ts.series
or not ts.series[1]
or not ts.series[2]
or not ts.series[1].statistics
or not ts.series[2].statistics
or ts.series[1].statistics.average == nil
or ts.series[2].statistics.average == nil
then
return
end
-- Check if the day target is nan
if not ts or not (ts.series[1].data[7] == ts.series[1].data[7]) then
return