Remove dead weight attribute

Author: LotharSee

ddtrace/sampler.py

@@ -43,8 +43,6 @@ def set_sample_rate(self, sample_rate):
 
     def sample(self, span):
         span.sampled = span.trace_id <= self.sampling_id_threshold
-        # `weight` is an attribute applied to all spans to help scaling related statistics
-        span.weight = 1 / (self.sample_rate or 1)
 
 
 class ThroughputSampler(object):

ddtrace/span.py

@@ -30,7 +30,6 @@ class Span(object):
         'duration',
         # Sampler attributes
         'sampled',
-        'weight',
         # Internal attributes
         '_tracer',
         '_finished',
@@ -89,7 +88,6 @@ def __init__(
 
         # sampling
         self.sampled = True
-        self.weight = 1
 
         self._tracer = tracer
         self._parent = None
@@ -185,7 +183,6 @@ def to_dict(self):
             'resource' : self.resource,
             'name' : self.name,
             'error': self.error,
-            'weight': self.weight,
         }
 
         if self.start:

tests/test_sampler.py

@@ -26,7 +26,6 @@ def test_random_sequence(self):
         # First trace, sampled
         with tracer.trace("foo") as s:
             assert s.sampled
-            assert s.weight == 2
         assert writer.pop()
 
         # Second trace, not sampled