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67 lines
1.6 KiB
Lua
67 lines
1.6 KiB
Lua
--
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-- (C) 2019-22 - ntop.org
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--
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local alerts_api = require("alerts_api")
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local checks = require("checks")
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local alert_consts = require("alert_consts")
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local script
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-- #################################################################
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local function check_interface_drops(params)
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local info = params.entity_info
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local stats = info.stats_since_reset
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local threshold = tonumber(params.check_config.threshold)
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local drop_perc = math.min(stats.drops * 100.0 / (stats.drops + stats.packets + 1), 100)
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local alert = alert_consts.alert_types.alert_too_many_drops.new(
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stats.drops,
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drop_perc,
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threshold
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)
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alert:set_score_error()
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alert:set_subtype(getInterfaceName(interface.getId()))
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alert:set_granularity(params.granularity)
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if((stats.packets > 100) and (drop_perc > threshold)) then
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alert:trigger(params.alert_entity, nil, params.cur_alerts)
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else
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alert:release(params.alert_entity, nil, params.cur_alerts)
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end
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end
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-- #################################################################
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script = {
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-- Script category
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category = checks.check_categories.system,
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default_enabled = true,
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default_value = {
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-- "> 5%"
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operator = "gt",
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threshold = 5,
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},
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hooks = {
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min = check_interface_drops,
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},
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gui = {
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i18n_title = "show_alerts.interface_drops_threshold",
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i18n_description = "show_alerts.interface_drops_threshold_descr",
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i18n_field_unit = checks.field_units.percentage,
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input_builder = "threshold_cross",
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field_max = 99,
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field_min = 1,
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field_operator = "gt";
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}
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}
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-- #################################################################
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return script
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