Feature core tracing

[hmstepanek]

Overview

Prototype of Core Tracing

• Add two new configuration settings:
  • distributed_tracing.drop_inprocess_spans.enabled - defaulted to False (Only reports entry and exit spans.)
  • distributed_tracing.unique_spans.enabled - defaulted to False (Only reports unique exit spans and entry spans.)
  • distributed_tracing.minimize_attributes.enabled - defaulted to False (Drops all agent attributes that are not entity synthesis attributes from spans)
    Note exit spans are defined as spans that contain entity synthesis agent attributes.
• Report additional metrics:
  • Time to process dropping spans and attributes. Note: attributes are dropped after attr processing intentionally to make time reporting easier.
  • Approximate amount of bytes or "cost" of core tracing/dropping in-process spans.
• Double adaptive sampling rate from default of 10 to 20 when Core Tracing is enabled.

Linking ErrorTraces, slow sql etc to distributed traces is not supported in the prototype.

[github-actions]

❌MegaLinter analysis: Error

Descriptor	Linter	Files	Fixed	Errors	Warnings	Elapsed time
✅ ACTION	actionlint	7		0	0	0.98s
✅ MARKDOWN	markdownlint	7	0	0	0	1.4s
❌ PYTHON	ruff	946	6	1	0	1.15s
✅ PYTHON	ruff-format	946	11	0	0	0.32s
✅ YAML	prettier	15	0	0	0	1.52s
✅ YAML	v8r	15		0	0	4.71s
✅ YAML	yamllint	15		0	0	0.62s

Detailed Issues

❌ PYTHON / ruff - 1 error

::error title=Ruff (G004),file=newrelic/common/streaming_utils.py,line=117,col=27,endLine=117,endColumn=170::newrelic/common/streaming_utils.py:117:27: G004 Logging statement uses f-string
::error title=Ruff (B026),file=newrelic/core/external_node.py,line=183,col=113,endLine=183,endColumn=118::newrelic/core/external_node.py:183:113: B026 Star-arg unpacking after a keyword argument is strongly discouraged
::error title=Ruff (B026),file=newrelic/core/function_node.py,line=121,col=113,endLine=121,endColumn=118::newrelic/core/function_node.py:121:113: B026 Star-arg unpacking after a keyword argument is strongly discouraged
::error title=Ruff (B026),file=newrelic/core/loop_node.py,line=86,col=113,endLine=86,endColumn=118::newrelic/core/loop_node.py:86:113: B026 Star-arg unpacking after a keyword argument is strongly discouraged
::error title=Ruff (B026),file=newrelic/core/node_mixin.py,line=202,col=113,endLine=202,endColumn=118::newrelic/core/node_mixin.py:202:113: B026 Star-arg unpacking after a keyword argument is strongly discouraged
::error title=Ruff (B026),file=newrelic/core/root_node.py,line=49,col=113,endLine=49,endColumn=118::newrelic/core/root_node.py:49:113: B026 Star-arg unpacking after a keyword argument is strongly discouraged
::error title=Ruff (G004),file=newrelic/core/stats_engine.py,line=456,col=23,endLine=456,endColumn=124::newrelic/core/stats_engine.py:456:23: G004 Logging statement uses f-string

See detailed reports in MegaLinter artifacts

[codecov-commenter]

Codecov Report

❌ Patch coverage is 55.37634% with 83 lines in your changes missing coverage. Please review.
✅ Project coverage is 71.27%. Comparing base (27f357c) to head (3e8b874).

Files with missing lines	Patch %	Lines
newrelic/core/node_mixin.py	34.61%	27 Missing and 7 partials ⚠️
newrelic/common/streaming_utils.py	46.29%	28 Missing and 1 partial ⚠️
newrelic/core/application.py	45.45%	5 Missing and 1 partial ⚠️
newrelic/core/stats_engine.py	76.00%	6 Missing ⚠️
newrelic/api/transaction.py	66.66%	1 Missing and 1 partial ⚠️
newrelic/core/data_collector.py	50.00%	1 Missing and 1 partial ⚠️
newrelic/core/loop_node.py	33.33%	2 Missing ⚠️
newrelic/core/transaction_node.py	66.66%	2 Missing ⚠️

❗ There is a different number of reports uploaded between BASE (27f357c) and HEAD (3e8b874). Click for more details.

HEAD has 5 uploads less than BASE

Flag	BASE (27f357c)	HEAD (3e8b874)
	6	1

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #1457       +/-   ##
===========================================
- Coverage   81.72%   71.27%   -10.46%     
===========================================
  Files         207      207               
  Lines       23909    24053      +144     
  Branches     3789     3819       +30     
===========================================
- Hits        19540    17143     -2397     
- Misses       3098     5364     +2266     
- Partials     1271     1546      +275     

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