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reservoir sampler. untested.

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This commit is contained in:
Bernhard Amann 2013-05-05 11:18:19 -07:00
parent 69c7363147
commit 663082e2d5
5 changed files with 198 additions and 24 deletions
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47
testing/btest/scripts/base/frameworks/sumstats/last.bro Normal file
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@ -0,0 +1,47 @@
# @TEST-EXEC: bro %INPUT
# @TEST-EXEC: btest-diff .stdout
event bro_init() &priority=5
{
local r1: SumStats::Reducer = [$stream="test.metric",
$apply=set(SumStats::SAMPLE), $num_samples=2];
SumStats::create([$epoch=3secs,
$reducers=set(r1),
$epoch_finished(data: SumStats::ResultTable) =
{
for ( key in data )
{
print key$host;
local r = data[key]["test.metric"];
print r$sample_vector;
print r$sample_elements;
}
}
]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=5]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=22]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=94]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=50]);
# I checked the random numbers. seems legit.
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=51]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=51]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=51]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=51]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=51]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=51]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=51]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=51]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=51]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=51]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=51]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=51]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=51]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=51]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=51]);
SumStats::observe("test.metric", [$host=1.2.3.4], [$num=51]);
SumStats::observe("test.metric", [$host=6.5.4.3], [$num=2]);
SumStats::observe("test.metric", [$host=7.2.1.5], [$num=1]);
}