zeek/testing/btest/scripts/base/frameworks/sumstats/thresholding.bro
2013-04-15 15:12:28 -04:00

73 lines
3.4 KiB
Text

# @TEST-EXEC: bro %INPUT
# @TEST-EXEC: btest-diff .stdout
redef enum Notice::Type += {
Test_Notice,
};
event bro_init() &priority=5
{
local r1: SumStats::Reducer = [$stream="test.metric", $apply=set(SumStats::SUM)];
SumStats::create([$epoch=3secs,
$reducers=set(r1),
#$threshold_val = SumStats::sum_threshold("test.metric"),
$threshold_val(key: SumStats::Key, result: SumStats::Result) =
{
return double_to_count(result["test.metric"]$sum);
},
$threshold=5,
$threshold_crossed(key: SumStats::Key, result: SumStats::Result) =
{
local r = result["test.metric"];
print fmt("THRESHOLD: hit a threshold value at %.0f for %s", r$sum, SumStats::key2str(key));
}
]);
local r2: SumStats::Reducer = [$stream="test.metric", $apply=set(SumStats::SUM)];
SumStats::create([$epoch=3secs,
$reducers=set(r2),
#$threshold_val = SumStats::sum_threshold("test.metric"),
$threshold_val(key: SumStats::Key, result: SumStats::Result) =
{
return double_to_count(result["test.metric"]$sum);
},
$threshold_series=vector(3,6,800),
$threshold_crossed(key: SumStats::Key, result: SumStats::Result) =
{
local r = result["test.metric"];
print fmt("THRESHOLD_SERIES: hit a threshold series value at %.0f for %s", r$sum, SumStats::key2str(key));
}
]);
local r3: SumStats::Reducer = [$stream="test.metric", $apply=set(SumStats::SUM)];
local r4: SumStats::Reducer = [$stream="test.metric2", $apply=set(SumStats::SUM)];
SumStats::create([$epoch=3secs,
$reducers=set(r3, r4),
$threshold_val(key: SumStats::Key, result: SumStats::Result) =
{
# Calculate a ratio between sums of two reducers.
if ( "test.metric2" in result && "test.metric" in result &&
result["test.metric"]$sum > 0 )
return double_to_count(result["test.metric2"]$sum / result["test.metric"]$sum);
else
return 0;
},
# Looking for metric2 sum to be 5 times the sum of metric
$threshold=5,
$threshold_crossed(key: SumStats::Key, result: SumStats::Result) =
{
local thold = result["test.metric2"]$sum / result["test.metric"]$sum;
print fmt("THRESHOLD WITH RATIO BETWEEN REDUCERS: hit a threshold value at %.0fx for %s", thold, SumStats::key2str(key));
}
]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=3]);
SumStats::observe("test.metric", [$host=6.5.4.3], [$num=2]);
SumStats::observe("test.metric", [$host=7.2.1.5], [$num=1]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=3]);
SumStats::observe("test.metric", [$host=7.2.1.5], [$num=1000]);
SumStats::observe("test.metric2", [$host=7.2.1.5], [$num=10]);
SumStats::observe("test.metric2", [$host=7.2.1.5], [$num=1000]);
SumStats::observe("test.metric2", [$host=7.2.1.5], [$num=54321]);
}