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# frozen_string_literal: true
# This class is used as a hook to observe graphql runtime events. From this
# hook both gitlab metrics and opentracking measurements are generated
module Gitlab
module Graphql
class GenericTracing < GraphQL::Tracing::PlatformTracing
self.platform_keys = {
'lex' => 'graphql.lex',
'parse' => 'graphql.parse',
'validate' => 'graphql.validate',
'analyze_query' => 'graphql.analyze',
'analyze_multiplex' => 'graphql.analyze',
'execute_multiplex' => 'graphql.execute',
'execute_query' => 'graphql.execute',
'execute_query_lazy' => 'graphql.execute',
'execute_field' => 'graphql.execute',
'execute_field_lazy' => 'graphql.execute'
}
def platform_field_key(type, field)
"#{type.name}.#{field.name}"
end
def platform_trace(platform_key, key, data, &block)
tags = { platform_key: platform_key, key: key }
start = Gitlab::Metrics::System.monotonic_time
with_labkit_tracing(tags, &block)
ensure
duration = Gitlab::Metrics::System.monotonic_time - start
graphql_duration_seconds.observe(tags, duration)
end
private
def with_labkit_tracing(tags, &block)
return yield unless Labkit::Tracing.enabled?
name = "#{tags[:platform_key]}.#{tags[:key]}"
span_tags = {
'component' => 'web',
'span.kind' => 'server'
}.merge(tags.stringify_keys)
Labkit::Tracing.with_tracing(operation_name: name, tags: span_tags, &block)
end
def graphql_duration_seconds
@graphql_duration_seconds ||= Gitlab::Metrics.histogram(
:graphql_duration_seconds,
'GraphQL execution time'
)
end
end
end
end
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