diff options
Diffstat (limited to 'lib/gitlab/usage/metrics/aggregates/aggregate.rb')
| -rw-r--r-- | lib/gitlab/usage/metrics/aggregates/aggregate.rb | 65 |
1 files changed, 2 insertions, 63 deletions
diff --git a/lib/gitlab/usage/metrics/aggregates/aggregate.rb b/lib/gitlab/usage/metrics/aggregates/aggregate.rb index f77c8cab39c..4c40bfbc06f 100644 --- a/lib/gitlab/usage/metrics/aggregates/aggregate.rb +++ b/lib/gitlab/usage/metrics/aggregates/aggregate.rb @@ -83,7 +83,7 @@ module Gitlab when UNION_OF_AGGREGATED_METRICS source.calculate_metrics_union(metric_names: aggregation[:events], start_date: start_date, end_date: end_date, recorded_at: recorded_at) when INTERSECTION_OF_AGGREGATED_METRICS - calculate_metrics_intersections(source: source, metric_names: aggregation[:events], start_date: start_date, end_date: end_date) + source.calculate_metrics_intersections(metric_names: aggregation[:events], start_date: start_date, end_date: end_date, recorded_at: recorded_at) else Gitlab::ErrorTracking .track_and_raise_for_dev_exception(UnknownAggregationOperator.new("Events should be aggregated with one of operators #{ALLOWED_METRICS_AGGREGATIONS}")) @@ -94,67 +94,6 @@ module Gitlab Gitlab::Utils::UsageData::FALLBACK end - # calculate intersection of 'n' sets based on inclusion exclusion principle https://en.wikipedia.org/wiki/Inclusion%E2%80%93exclusion_principle - # this method will be extracted to dedicated module with https://gitlab.com/gitlab-org/gitlab/-/issues/273391 - def calculate_metrics_intersections(source:, metric_names:, start_date:, end_date:, subset_powers_cache: Hash.new({})) - # calculate power of intersection of all given metrics from inclusion exclusion principle - # |A + B + C| = (|A| + |B| + |C|) - (|A & B| + |A & C| + .. + |C & D|) + (|A & B & C|) => - # |A & B & C| = - (|A| + |B| + |C|) + (|A & B| + |A & C| + .. + |C & D|) + |A + B + C| - # |A + B + C + D| = (|A| + |B| + |C| + |D|) - (|A & B| + |A & C| + .. + |C & D|) + (|A & B & C| + |B & C & D|) - |A & B & C & D| => - # |A & B & C & D| = (|A| + |B| + |C| + |D|) - (|A & B| + |A & C| + .. + |C & D|) + (|A & B & C| + |B & C & D|) - |A + B + C + D| - - # calculate each components of equation except for the last one |A & B & C & D| = (|A| + |B| + |C| + |D|) - (|A & B| + |A & C| + .. + |C & D|) + (|A & B & C| + |B & C & D|) - ... - subset_powers_data = subsets_intersection_powers(source, metric_names, start_date, end_date, subset_powers_cache) - - # calculate last component of the equation |A & B & C & D| = .... - |A + B + C + D| - power_of_union_of_all_metrics = begin - subset_powers_cache[metric_names.size][metric_names.join('_+_')] ||= \ - source.calculate_metrics_union(metric_names: metric_names, start_date: start_date, end_date: end_date, recorded_at: recorded_at) - end - - # in order to determine if part of equation (|A & B & C|, |A & B & C & D|), that represents the intersection that we need to calculate, - # is positive or negative in particular equation we need to determine if number of subsets is even or odd. Please take a look at two examples below - # |A + B + C| = (|A| + |B| + |C|) - (|A & B| + |A & C| + .. + |C & D|) + |A & B & C| => - # |A & B & C| = - (|A| + |B| + |C|) + (|A & B| + |A & C| + .. + |C & D|) + |A + B + C| - # |A + B + C + D| = (|A| + |B| + |C| + |D|) - (|A & B| + |A & C| + .. + |C & D|) + (|A & B & C| + |B & C & D|) - |A & B & C & D| => - # |A & B & C & D| = (|A| + |B| + |C| + |D|) - (|A & B| + |A & C| + .. + |C & D|) + (|A & B & C| + |B & C & D|) - |A + B + C + D| - subset_powers_size_even = subset_powers_data.size.even? - - # sum all components of equation except for the last one |A & B & C & D| = (|A| + |B| + |C| + |D|) - (|A & B| + |A & C| + .. + |C & D|) + (|A & B & C| + |B & C & D|) - ... => - sum_of_all_subset_powers = sum_subset_powers(subset_powers_data, subset_powers_size_even) - - # add last component of the equation |A & B & C & D| = sum_of_all_subset_powers - |A + B + C + D| - sum_of_all_subset_powers + (subset_powers_size_even ? power_of_union_of_all_metrics : -power_of_union_of_all_metrics) - end - - def sum_subset_powers(subset_powers_data, subset_powers_size_even) - sum_without_sign = subset_powers_data.to_enum.with_index.sum do |value, index| - (index + 1).odd? ? value : -value - end - - (subset_powers_size_even ? -1 : 1) * sum_without_sign - end - - def subsets_intersection_powers(source, metric_names, start_date, end_date, subset_powers_cache) - subset_sizes = (1...metric_names.size) - - subset_sizes.map do |subset_size| - if subset_size > 1 - # calculate sum of powers of intersection between each subset (with given size) of metrics: #|A + B + C + D| = ... - (|A & B| + |A & C| + .. + |C & D|) - metric_names.combination(subset_size).sum do |metrics_subset| - subset_powers_cache[subset_size][metrics_subset.join('_&_')] ||= - calculate_metrics_intersections(source: source, metric_names: metrics_subset, start_date: start_date, end_date: end_date, subset_powers_cache: subset_powers_cache) - end - else - # calculate sum of powers of each set (metric) alone #|A + B + C + D| = (|A| + |B| + |C| + |D|) - ... - metric_names.sum do |metric| - subset_powers_cache[subset_size][metric] ||= \ - source.calculate_metrics_union(metric_names: metric, start_date: start_date, end_date: end_date, recorded_at: recorded_at) - end - end - end - end - def load_metrics(wildcard) Dir[wildcard].each_with_object([]) do |path, metrics| metrics.push(*load_yaml_from_path(path)) @@ -170,4 +109,4 @@ module Gitlab end end -Gitlab::Usage::Metrics::Aggregates::Aggregate.prepend_if_ee('EE::Gitlab::Usage::Metrics::Aggregates::Aggregate') +Gitlab::Usage::Metrics::Aggregates::Aggregate.prepend_mod_with('Gitlab::Usage::Metrics::Aggregates::Aggregate') |