fix: disable batching of X-Ray subsegments (aws-powertools#284)

Author: nmoutschen

aws_lambda_powertools/tracing/tracer.py

@@ -14,6 +14,10 @@
 
 is_cold_start = True
 logger = logging.getLogger(__name__)
+# Set the streaming threshold to 0 on the default recorder to force sending
+# subsegments individually, rather than batching them.
+# See https://github.com/awslabs/aws-lambda-powertools-python/issues/283
+aws_xray_sdk.core.xray_recorder.configure(streaming_threshold=0)
 
 
 class Tracer: