chore(lib): reduce noise in debug logs (#13488)

mabdinur · web-flow · commit 8423d8f024bd · 2025-07-21T16:53:44.000Z
Removes useless and noisy debug logs. Make existing start up logs more informative. ### Before ``` Reading stable configuration from files: local: "/opt/datadog-agent/etc/application_monitoring.yaml" fleet: "/opt/datadog-agent/etc/stable/application_monitoring.yaml" Called library_config_common_component: source: LocalStableConfig configurator: Configurator { debug_logs: true } process args: "/Users/munirabdinur/.pyenv/versions/3.12.7/bin/python" "-c" "import ddtrace.auto; import time; time.sleep(60)" process language: "python" No selector matched for source LocalStableConfig Called library_config_common_component: source: FleetStableConfig configurator: Configurator { debug_logs: true } process args: "/Users/munirabdinur/.pyenv/versions/3.12.7/bin/python" "-c" "import ddtrace.auto; import time; time.sleep(60)" process language: "python" No selector matched for source FleetStableConfig debug mode has been enabled for the ddtrace logger Configuration endpoint not set. Skipping fetching configuration. Calling 1 registered hooks on import of module 'ddtrace.vendor.dogstatsd.base' initialized processor <ddtrace._trace.processor.TopLevelSpanProcessor object at 0x10355fa70> initialized trace processor <ddtrace._trace.processor.TraceSamplingProcessor object at 0x10514e720> initialized DatadogSampler(agent_rates={}, limiter=RateLimiter(rate_limit=100, tokens=100, last_update_ns=299731046765375, effective_rate=1.0), rules=[]), rate_limit_always_on=False initialized trace processor <ddtrace._trace.processor.TraceTagsProcessor object at 0x1032f6150> Statsd buffering is disabled Statsd periodic buffer flush is disabled initialized processor SpanAggregator(True, 300, <ddtrace._trace.processor.TraceSamplingProcessor object at 0x10514e720>,<ddtrace._trace.processor.TraceTagsProcessor object at 0x1032f6150>,[<ddtrace.internal.peer_service.processor.PeerServiceProcessor object at 0x105203a40>, <ddtrace.internal.schema.processor.BaseServiceProcessor object at 0x104bc7440>], AgentWriter(status=<ServiceStatus.STOPPED: 'stopped'>, intake_url='http://localhost:8126', dogstatsd=<ddtrace.vendor.dogstatsd.base.DogStatsd object at 0x103f1ecc0>)) git tags from env: git tags: crashtracking enabled via environment variable additional sitecustomize not found RemoteConfigWorker created with polling interval 5 [18720][P: 61575] Register ASM Remote Config Callback [PID 18720] Subscriber ASM initialized creating new intake connection to http://localhost:8126 with timeout 2 Sending request: PUT v0.5/traces {'Datadog-Meta-Lang': 'python', 'Datadog-Meta-Lang-Version': '3.12.7', 'Datadog-Meta-Lang-Interpreter': 'CPython', 'Datadog-Meta-Tracer-Version': '3.8.0.dev61+gb32b6a4e76', 'Datadog-Client-Computed-Top-Level': 'yes', 'Content-Type': 'application/msgpack', 'X-Datadog-Trace-Count': '1'} Got response: 200 OK sent 16B in 0.00624s to http://localhost:8126/v0.5/traces - DATADOG TRACER CONFIGURATION - {'date': '2025-05-22T14:08:08.328017', 'os_name': 'Darwin', 'os_version': '24.4.0', 'is_64_bit': True, 'architecture': '64bit', 'vm': 'CPython', 'version': '3.8.0.dev61+gb32b6a4e76', 'lang': 'python', 'lang_version': '3.12.7', 'pip_version': '25.0', 'in_virtual_env': False, 'agent_url': 'http://localhost:8126', 'agent_error': None, 'statsd_url': 'udp://localhost:8125', 'env': '', 'is_global_tracer': True, 'enabled_env_setting': None, 'tracer_enabled': True, 'sampler_type': 'DatadogSampler', 'priority_sampler_type': 'N/A', 'sampler_rules': [], 'service': 'moontest', 'debug': True, 'enabled_cli': False, 'analytics_enabled': False, 'log_injection_enabled': False, 'health_metrics_enabled': False, 'runtime_metrics_enabled': False, 'dd_version': '', 'global_tags': '', 'tracer_tags': '', 'integrations': {'aioredis': 'N/A', 'aiomysql': 'N/A', 'aredis': 'N/A', 'asyncio': 'N/A', 'avro': 'N/A', 'boto': 'N/A', 'botocore': 'N/A', 'bottle': 'N/A', 'cassandra': 'N/A', 'celery': 'N/A', 'consul': 'N/A', 'ddtrace_api': 'N/A', 'django': 'N/A', 'dramatiq': 'N/A', 'elasticsearch': 'N/A', 'algoliasearch': 'N/A', 'futures': 'N/A', 'freezegun': 'N/A', 'google_generativeai': 'N/A', 'gevent': 'N/A', 'graphql': 'N/A', 'grpc': 'N/A', 'httpx': 'N/A', 'kafka': 'N/A', 'langgraph': 'N/A', 'litellm': 'N/A', 'mongoengine': 'N/A', 'mysql': 'N/A', 'mysqldb': 'N/A', 'pymysql': 'N/A', 'mariadb': 'N/A', 'psycopg': 'N/A', 'pylibmc': 'N/A', 'pymemcache': 'N/A', 'pymongo': 'N/A', 'redis': 'N/A', 'rediscluster': 'N/A', 'requests': 'N/A', 'rq': 'N/A', 'sanic': 'N/A', 'snowflake': 'N/A', 'sqlalchemy': 'N/A', 'sqlite3': 'N/A', 'aiohttp': 'N/A', 'aiohttp_jinja2': 'N/A', 'aiopg': 'N/A', 'aiobotocore': 'N/A', 'httplib': 'N/A', 'urllib3': 'N/A', 'vertexai': 'N/A', 'vertica': 'N/A', 'molten': 'N/A', 'jinja2': 'N/A', 'mako': 'N/A', 'flask': 'N/A', 'kombu': 'N/A', 'starlette': 'N/A', 'falcon': 'N/A', 'pyramid': 'N/A', 'logbook': 'N/A', 'logging': 'N/A', 'loguru': 'N/A', 'structlog': 'N/A', 'pynamodb': 'N/A', 'pyodbc': 'N/A', 'fastapi': 'N/A', 'dogpile_cache': 'N/A', 'yaaredis': 'N/A', 'asyncpg': 'N/A', 'aws_lambda': 'N/A', 'azure_functions': 'N/A', 'tornado': 'N/A', 'openai': 'N/A', 'langchain': 'N/A', 'anthropic': 'N/A', 'crewai': 'N/A', 'subprocess': 'N/A', 'unittest': 'N/A', 'coverage': 'N/A', 'selenium': 'N/A', 'valkey': 'N/A', 'openai_agents': 'N/A', 'protobuf': {'enabled': False, 'instrumented': False, 'module_available': True, 'module_version': '6.30.2', 'module_imported': False, 'config': None}}, 'partial_flush_enabled': True, 'partial_flush_min_spans': 300, 'asm_enabled': False, 'iast_enabled': False, 'waf_timeout': 5.0, 'remote_config_enabled': True} [PID 18720 | PPID 61575] Subscriber ASM is getting data [PID 18720 | PPID 61575] Subscriber ASM got data [PID 18720 | PPID 61575] Subscriber ASM is getting data [PID 18720 | PPID 61575] Subscriber ASM got data [PID 18720 | PPID 61575] Subscriber ASM is getting data [PID 18720 | PPID 61575] Subscriber ASM got data [18720][P: 61575] Requesting RC data from products: {'ASM_FEATURES': <ddtrace.appsec._remoteconfiguration.AppSecRC object at 0x10338e150>} [PID 18720 | PPID 61575] Subscriber ASM is getting data [PID 18720 | PPID 61575] Subscriber ASM got data [PID 18720 | PPID 61575] Subscriber ASM is getting data [PID 18720 | PPID 61575] Subscriber ASM got data [PID 18720 | PPID 61575] Subscriber ASM is getting data [PID 18720 | PPID 61575] Subscriber ASM got data [PID 18720 | PPID 61575] Subscriber ASM is getting data [PID 18720 | PPID 61575] Subscriber ASM got data [18720][P: 61575] Requesting RC data from products: {'ASM_FEATURES': <ddtrace.appsec._remoteconfiguration.AppSecRC object at 0x10338e150>} [PID 18720 | PPID 61575] Subscriber ASM is getting data [PID 18720 | PPID 61575] Subscriber ASM got data [PID 18720 | PPID 61575] Subscriber ASM is getting data [PID 18720 | PPID 61575] Subscriber ASM got data [PID 18720 | PPID 61575] Subscriber ASM is getting data [PID 18720 | PPID 61575] Subscriber ASM got data Waiting 5 seconds for tracer to finish. Hit ctrl-c to quit. [PID 18720 | PPID 61575] Subscriber ASM is getting data [PID 18720 | PPID 61575] Subscriber ASM got data [18720][P: 61575] Requesting RC data from products: {'ASM_FEATURES': <ddtrace.appsec._remoteconfiguration.AppSecRC object at 0x10338e150>} Instrumentation Telemetry sent 1315 in 0.49350s to https://all-http-intake.logs.datad0g.com/api/v2/apmtelemetry. response: 202 Instrumentation Telemetry sent 690 in 0.42241s to https://all-http-intake.logs.datad0g.com/api/v2/apmtelemetry. response: 202 Instrumentation Telemetry sent 998 in 0.35086s to https://all-http-intake.logs.datad0g.com/api/v2/apmtelemetry. response: 202 Instrumentation Telemetry sent 692 in 0.37146s to https://all-http-intake.logs.datad0g.com/api/v2/apmtelemetry. response: 202 Instrumentation Telemetry sent 11219 in 0.50757s to https://all-http-intake.logs.datad0g.com/api/v2/apmtelemetry. response: 202 Instrumentation Telemetry sent 886 in 0.41524s to https://all-http-intake.logs.datad0g.com/api/v2/apmtelemetry. response: 202 Instrumentation Telemetry sent 692 in 0.40883s to https://all-http-intake.logs.datad0g.com/api/v2/apmtelemetry. response: 202 ``` ### After ``` Reading stable configuration from files: local: "/opt/datadog-agent/etc/application_monitoring.yaml" fleet: "/opt/datadog-agent/etc/stable/application_monitoring.yaml" Called library_config_common_component: source: LocalStableConfig configurator: Configurator { debug_logs: true } process args: "/Users/munirabdinur/.pyenv/versions/3.12.7/bin/python" "-c" "import ddtrace.auto; import time; time.sleep(60)" process language: "python" No selector matched for source LocalStableConfig Called library_config_common_component: source: FleetStableConfig configurator: Configurator { debug_logs: true } process args: "/Users/munirabdinur/.pyenv/versions/3.12.7/bin/python" "-c" "import ddtrace.auto; import time; time.sleep(60)" process language: "python" No selector matched for source FleetStableConfig Calling 1 registered hooks on import of module 'ddtrace.vendor.dogstatsd.base' initialized DatadogSampler(agent_rates={}, limiter=RateLimiter(rate_limit=100, tokens=100, last_update_ns=299674427175500, effective_rate=1.0), rules=[]), rate_limit_always_on=False Statsd buffering is disabled Statsd periodic buffer flush is disabled additional sitecustomize not found RemoteConfigWorker created with polling interval 5 [14456][P: 61575] Register ASM Remote Config Callback [PID 14456] Subscriber ASM initialized creating new intake connection to http://localhost:8126 with timeout 2 Sending request: PUT v0.5/traces {'Datadog-Meta-Lang': 'python', 'Datadog-Meta-Lang-Version': '3.12.7', 'Datadog-Meta-Lang-Interpreter': 'CPython', 'Datadog-Meta-Tracer-Version': '3.8.0.dev61+gb32b6a4e76', 'Datadog-Client-Computed-Top-Level': 'yes', 'Content-Type': 'application/msgpack', 'X-Datadog-Trace-Count': '1'} Got response: 200 OK sent 16B in 0.00665s to http://localhost:8126/v0.5/traces - DATADOG TRACER CONFIGURATION - {'date': '2025-05-22T14:07:11.695157', 'os_name': 'Darwin', 'os_version': '24.4.0', 'is_64_bit': True, 'architecture': '64bit', 'vm': 'CPython', 'version': '3.8.0.dev61+gb32b6a4e76', 'lang': 'python', 'lang_version': '3.12.7', 'pip_version': '25.0', 'in_virtual_env': False, 'agent_url': 'http://localhost:8126', 'agent_error': None, 'statsd_url': 'udp://localhost:8125', 'env': '', 'is_global_tracer': True, 'enabled_env_setting': None, 'tracer_enabled': True, 'sampler_type': 'DatadogSampler', 'priority_sampler_type': 'N/A', 'sampling_rules': [], 'service': 'moontest', 'debug': True, 'enabled_cli': False, 'analytics_enabled': False, 'log_injection_enabled': False, 'health_metrics_enabled': False, 'runtime_metrics_enabled': False, 'dd_version': '', 'global_tags': '', 'tracer_tags': '', 'integrations': {'protobuf': {'enabled': False, 'instrumented': False, 'module_version': '6.30.2', 'module_imported': False, 'config': None}}, 'partial_flush_enabled': True, 'partial_flush_min_spans': 300, 'asm_enabled': False, 'iast_enabled': False, 'waf_timeout': 5.0, 'remote_config_enabled': True, 'config_endpoint': {}, 'crashtracking_enabled': True, 'gitmetadata_enabled': True, 'git_repository_url': '', 'git_commit_sha': '', 'git_main_package': ''} ^CInstrumentation Telemetry sent 1315 bytes in 0.66476s to https://all-http-intake.logs.datad0g.com/api/v2/apmtelemetry. Event: app-started. Response: 202 Instrumentation Telemetry sent 998 bytes in 0.48419s to https://all-http-intake.logs.datad0g.com/api/v2/apmtelemetry. Event: app-product-change. Response: 202 Instrumentation Telemetry sent 11219 bytes in 1.07408s to https://all-http-intake.logs.datad0g.com/api/v2/apmtelemetry. Event: app-client-configuration-change. Response: 202 Instrumentation Telemetry sent 886 bytes in 0.45273s to https://all-http-intake.logs.datad0g.com/api/v2/apmtelemetry. Event: app-dependencies-loaded. Response: 202 Instrumentation Telemetry sent 690 bytes in 0.53659s to https://all-http-intake.logs.datad0g.com/api/v2/apmtelemetry. Event: app-closing. Response: 202 Instrumentation Telemetry sent 692 bytes in 1.41108s to https://all-http-intake.logs.datad0g.com/api/v2/apmtelemetry. Event: app-heartbeat. Response: 202 ``` ## Checklist - [x] PR author has checked that all the criteria below are met - The PR description includes an overview of the change - The PR description articulates the motivation for the change - The change includes tests OR the PR description describes a testing strategy - The PR description notes risks associated with the change, if any - Newly-added code is easy to change - The change follows the [library release note guidelines](https://ddtrace.readthedocs.io/en/stable/releasenotes.html) - The change includes or references documentation updates if necessary - Backport labels are set (if [applicable](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting)) ## Reviewer Checklist - [ ] Reviewer has checked that all the criteria below are met - Title is accurate - All changes are related to the pull request's stated goal - Avoids breaking [API](https://ddtrace.readthedocs.io/en/stable/versioning.html#interfaces) changes - Testing strategy adequately addresses listed risks - Newly-added code is easy to change - Release note makes sense to a user of the library - If necessary, author has acknowledged and discussed the performance implications of this PR as reported in the benchmarks PR comment - Backport labels are set in a manner that is consistent with the [release branch maintenance policy](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting)
diff --git a/ddtrace/_logger.py b/ddtrace/_logger.py
@@ -57,7 +57,6 @@ def configure_ddtrace_logger():
 def _configure_ddtrace_debug_logger(logger):
     if get_config("DD_TRACE_DEBUG", False, asbool):
         logger.setLevel(logging.DEBUG)
-        logger.debug("debug mode has been enabled for the ddtrace logger")
 
 
 def _configure_ddtrace_file_logger(logger):
diff --git a/ddtrace/_trace/processor/__init__.py b/ddtrace/_trace/processor/__init__.py
@@ -43,7 +43,7 @@ def __init__(self) -> None:
         """Default post initializer which logs the representation of the
         TraceProcessor at the ``logging.DEBUG`` level.
         """
-        log.debug("initialized trace processor %r", self)
+        pass
 
     @abc.abstractmethod
     def process_trace(self, trace: List[Span]) -> Optional[List[Span]]:
@@ -64,7 +64,7 @@ def __init__(self) -> None:
         """Default post initializer which logs the representation of the
         Processor at the ``logging.DEBUG`` level.
         """
-        log.debug("initialized processor %r", self)
+        pass
 
     @abc.abstractmethod
     def on_span_start(self, span: Span) -> None:
diff --git a/ddtrace/_trace/tracer.py b/ddtrace/_trace/tracer.py
@@ -385,8 +385,6 @@ def configure(
         if context_provider is not None:
             self.context_provider = context_provider
 
-        self._generate_diagnostic_logs()
-
     def _generate_diagnostic_logs(self):
         if config._debug_mode or config._startup_logs_enabled:
             try:
diff --git a/ddtrace/bootstrap/preload.py b/ddtrace/bootstrap/preload.py
@@ -46,7 +46,6 @@ def register_post_preload(func: t.Callable) -> None:
 
 # DEV: We want to start the crashtracker as early as possible
 if crashtracker_config.enabled:
-    log.debug("crashtracking enabled via environment variable")
     try:
         from ddtrace.internal.core import crashtracking
 
diff --git a/ddtrace/internal/debug.py b/ddtrace/internal/debug.py
@@ -51,7 +51,10 @@ def collect(tracer):
     # type: (Tracer) -> Dict[str, Any]
     """Collect system and library information into a serializable dict."""
 
+    # Inline expensive imports to avoid unnecessary overhead on startup.
+    from ddtrace.internal import gitmetadata
     from ddtrace.internal.runtime.runtime_metrics import RuntimeWorker
+    from ddtrace.settings.crashtracker import config as crashtracker_config
 
     if isinstance(tracer._span_aggregator.writer, LogWriter):
         agent_url = "AGENTLESS"
@@ -70,7 +73,7 @@ def collect(tracer):
         agent_url = "CUSTOM"
         agent_error = None
 
-    sampler_rules = [str(rule) for rule in tracer._sampler.rules]
+    sampling_rules = [str(rule) for rule in tracer._sampler.rules]
 
     is_venv = in_venv()
 
@@ -98,19 +101,13 @@ def collect(tracer):
             integration_configs[module] = dict(
                 enabled=enabled,
                 instrumented=module_instrumented,
-                module_available=module_available,
                 module_version=packages_available[module],
                 module_imported=module_imported,
                 config=config,
             )
-        else:
-            # Use N/A here to avoid the additional clutter of an entire
-            # config dictionary for a module that isn't available.
-            integration_configs[module] = "N/A"
 
     pip_version = packages_available.get("pip", "N/A")
-
-    from ddtrace._trace.tracer import log
+    git_repository_url, git_commit_sha, git_main_package = gitmetadata.get_git_tags()
 
     return dict(
         # Timestamp UTC ISO 8601 with the trailing +00:00 removed
@@ -131,14 +128,10 @@ def collect(tracer):
         agent_error=agent_error,
         statsd_url=agent_config.dogstatsd_url,
         env=ddtrace.config.env or "",
-        is_global_tracer=tracer == ddtrace.tracer,
-        enabled_env_setting=os.getenv("DATADOG_TRACE_ENABLED"),
-        tracer_enabled=tracer.enabled,
-        sampler_type=type(tracer._sampler).__name__ if tracer._sampler else "N/A",
-        priority_sampler_type="N/A",
-        sampler_rules=sampler_rules,
+        ddtrace_enabled=ddtrace.config._tracing_enabled,
+        sampling_rules=sampling_rules,
         service=ddtrace.config.service or "",
-        debug=log.isEnabledFor(logging.DEBUG),
+        debug=logger.isEnabledFor(logging.DEBUG),
         enabled_cli="ddtrace" in os.getenv("PYTHONPATH", ""),
         log_injection_enabled=ddtrace.config._logs_injection,
         health_metrics_enabled=ddtrace.config._health_metrics_enabled,
@@ -153,6 +146,12 @@ def collect(tracer):
         iast_enabled=asm_config._iast_enabled,
         waf_timeout=asm_config._waf_timeout,
         remote_config_enabled=ddtrace.config._remote_config_enabled,
+        config_endpoint=ddtrace.config._from_endpoint,
+        crashtracking_enabled=crashtracker_config.enabled,
+        gitmetadata_enabled=gitmetadata.config.enabled,
+        git_repository_url=git_repository_url,
+        git_commit_sha=git_commit_sha,
+        git_main_package=git_main_package,
     )
 
 
@@ -199,7 +198,7 @@ class bcolors:
     DD Version: {dd_version}
     Global Tags: {global_tags}
     Tracer Tags: {tracer_tags}""".format(
-        tracer_enabled=info.get("tracer_enabled"),
+        tracer_enabled=info.get("ddtrace_enabled"),
         appsec_enabled=info.get("asm_enabled"),
         remote_config_enabled=info.get("remote_config_enabled"),
         iast_enabled=info.get("iast_enabled"),
diff --git a/ddtrace/internal/gitmetadata.py b/ddtrace/internal/gitmetadata.py
@@ -33,8 +33,11 @@ class GitMetadataConfig(DDConfig):
     tags = DDConfig.var(str, "tags", default="")
 
 
-def _get_tags_from_env(config):
-    # type: (GitMetadataConfig) -> typing.Tuple[str, str, str]
+config = GitMetadataConfig()
+
+
+def _get_tags_from_env():
+    # type: () -> typing.Tuple[str, str, str]
     """
     Get git metadata from environment variables.
     Returns tuple (repository_url, commit_sha, main_package)
@@ -101,24 +104,17 @@ def get_git_tags():
         if _GITMETADATA_TAGS is not None:
             return _GITMETADATA_TAGS
 
-        config = GitMetadataConfig()
-
         if config.enabled:
-            repository_url, commit_sha, main_package = _get_tags_from_env(config)
-            log.debug("git tags from env: %s %s %s", repository_url, commit_sha, main_package)
+            repository_url, commit_sha, main_package = _get_tags_from_env()
             if main_package and (not repository_url or not commit_sha):
                 # trying to extract repo URL and/or commit sha from the main package
                 pkg_repository_url, pkg_commit_sha = _get_tags_from_package(main_package)
-                log.debug("git tags from package: %s %s", pkg_repository_url, pkg_commit_sha)
                 if not repository_url:
                     repository_url = pkg_repository_url
                 if not commit_sha:
                     commit_sha = pkg_commit_sha
-
-            log.debug("git tags: %s %s", repository_url, commit_sha)
             _GITMETADATA_TAGS = repository_url, commit_sha, main_package
         else:
-            log.debug("git tags disabled")
             _GITMETADATA_TAGS = ("", "", "")
         return _GITMETADATA_TAGS
     except Exception:
diff --git a/ddtrace/internal/remoteconfig/_subscribers.py b/ddtrace/internal/remoteconfig/_subscribers.py
@@ -36,9 +36,7 @@ def _get_data_from_connector_and_exec(self) -> None:
 
     def periodic(self):
         try:
-            log.debug("[PID %d | PPID %d] %s is getting data", os.getpid(), os.getppid(), self)
             self._get_data_from_connector_and_exec()
-            log.debug("[PID %d | PPID %d] %s got data", os.getpid(), os.getppid(), self)
         except Exception:
             log.error("[PID %d | PPID %d] %s while getting data", os.getpid(), os.getppid(), self, exc_info=True)
 
diff --git a/ddtrace/internal/remoteconfig/client.py b/ddtrace/internal/remoteconfig/client.py
@@ -294,12 +294,8 @@ def reset_products(self):
     def _send_request(self, payload: str) -> Optional[Mapping[str, Any]]:
         conn = None
         try:
-            log.debug(
-                "[%s][P: %s] Requesting RC data from products: %s", os.getpid(), os.getppid(), str(self._products)
-            )  # noqa: G200
-
             if config.log_payloads:
-                log.debug("[%s][P: %s] RC request payload: %s", os.getpid(), os.getppid(), payload)  # noqa: G200
+                log.debug("[%s][P: %s] RC request payload: %s", os.getpid(), os.getppid(), payload)
 
             conn = agent.get_connection(self.agent_url, timeout=agent_config.trace_agent_timeout_seconds)
             conn.request("POST", REMOTE_CONFIG_AGENT_ENDPOINT, payload, self._headers)
@@ -311,11 +307,9 @@ def _send_request(self, payload: str) -> Optional[Mapping[str, Any]]:
             data = resp.read()
 
             if config.log_payloads:
-                log.debug(
-                    "[%s][P: %s] RC response payload: %s", os.getpid(), os.getppid(), data.decode("utf-8")
-                )  # noqa: G200
+                log.debug("[%s][P: %s] RC response payload: %s", os.getpid(), os.getppid(), data.decode("utf-8"))
         except OSError as e:
-            log.debug("Unexpected connection error in remote config client request: %s", str(e))  # noqa: G200
+            log.debug("Unexpected connection error in remote config client request: %s", str(e))
             return None
         finally:
             if conn is not None:
diff --git a/ddtrace/internal/remoteconfig/worker.py b/ddtrace/internal/remoteconfig/worker.py
@@ -35,7 +35,6 @@ def __init__(self):
         self._parent_id = os.getpid()
         self._products_to_restart_on_fork = set()
         self._capabilities_map: Dict[enum.IntFlag, str] = dict()
-        log.debug("RemoteConfigWorker created with polling interval %d", ddconfig._remote_config_poll_interval)
 
     def _agent_check(self) -> None:
         try:
diff --git a/ddtrace/internal/telemetry/writer.py b/ddtrace/internal/telemetry/writer.py
@@ -98,10 +98,11 @@ def send_event(self, request: Dict) -> Optional[httplib.HTTPResponse]:
                 resp = conn.getresponse()
             if resp.status < 300:
                 log.debug(
-                    "Instrumentation Telemetry sent %d in %.5fs to %s. response: %s",
+                    "Instrumentation Telemetry sent %d bytes in %.5fs to %s. Event: %s. Response: %s",
                     len(rb_json),
                     sw.elapsed(),
                     self.url,
+                    request["request_type"],
                     resp.status,
                 )
             else:
diff --git a/ddtrace/internal/writer/writer.py b/ddtrace/internal/writer/writer.py
@@ -256,13 +256,20 @@ def _put(self, data: bytes, headers: Dict[str, str], client: WriterClientBase, n
                     headers,
                 )
                 resp = self._conn.getresponse()
-                log.debug("Got response: %s %s", resp.status, resp.reason)
                 t = sw.elapsed()
                 if t >= self.interval:
                     log_level = logging.WARNING
                 else:
                     log_level = logging.DEBUG
-                log.log(log_level, "sent %s in %.5fs to %s", _human_size(len(data)), t, self._intake_endpoint(client))
+                log.log(
+                    log_level,
+                    "Got response: %d %s sent %s in %.5fs to %s",
+                    resp.status,
+                    resp.reason,
+                    _human_size(len(data)),
+                    t,
+                    self._intake_endpoint(client),
+                )
             except Exception:
                 # Always reset the connection when an exception occurs
                 self._reset_connection()
diff --git a/ddtrace/settings/endpoint_config.py b/ddtrace/settings/endpoint_config.py
@@ -62,7 +62,6 @@ def fetch_config_from_endpoint() -> dict:
     config_endpoint = os.getenv(_CONFIG_ENDPOINT_ENV, None)
 
     if config_endpoint is None:
-        log.debug("Configuration endpoint not set. Skipping fetching configuration.")
         return {}
 
     try:
diff --git a/tests/commands/test_runner.py b/tests/commands/test_runner.py
@@ -226,7 +226,7 @@ def test_debug_mode(self):
         p.wait()
         assert p.returncode == 0
         assert p.stdout.read() == b""
-        assert b"debug mode has been enabled for the ddtrace logger" in p.stderr.read()
+        assert b" 'debug': True" in p.stderr.read()
 
 
 @pytest.mark.skipif(sys.version_info > (3, 12), reason="Profiling unsupported with 3.13")
diff --git a/tests/integration/test_debug.py b/tests/integration/test_debug.py
@@ -8,7 +8,6 @@
 import pytest
 
 import ddtrace
-import ddtrace._trace.sampler
 from ddtrace.internal import debug
 from ddtrace.internal.writer import AgentWriter
 from tests.integration.utils import AGENT_VERSION
@@ -78,24 +77,21 @@ def test_standard_tags():
     assert agent_error is None
 
     assert f.get("env") == ""
-    assert f.get("is_global_tracer") is True
-    assert f.get("tracer_enabled") is True
-    assert f.get("sampler_type") == "DatadogSampler"
-    assert f.get("priority_sampler_type") == "N/A"
+    assert f.get("ddtrace_enabled") is True
     assert f.get("service") == "ddtrace_subprocess_dir"
     assert f.get("dd_version") == ""
     assert f.get("debug") is False
     assert f.get("enabled_cli") is False
     assert f.get("log_injection_enabled") == "structured"
     assert f.get("health_metrics_enabled") is False
     assert f.get("runtime_metrics_enabled") is False
-    assert f.get("sampler_rules") == []
+    assert f.get("sampling_rules") == []
     assert f.get("global_tags") == ""
     assert f.get("tracer_tags") == ""
 
-    icfg = f.get("integrations")
-    assert icfg["django"] == "N/A"
-    assert icfg["flask"] == "N/A"
+    icfg = f.get("integrations", {})
+    assert "django" not in icfg
+    assert "flask" not in icfg
 
 
 @pytest.mark.subprocess(env={"DD_TRACE_AGENT_URL": "unix:///file.sock"})
@@ -137,10 +133,10 @@ def test_env_config(self):
         assert f.get("service") == "service"
         assert f.get("global_tags") == "k1:v1,k2:v2"
         assert f.get("tracer_tags") in ["k1:v1,k2:v2", "k2:v2,k1:v1"]
-        assert f.get("tracer_enabled") is True
+        assert f.get("ddtrace_enabled") is True
 
-        icfg = f.get("integrations")
-        assert icfg["django"] == "N/A"
+        icfg = f.get("integrations", {})
+        assert "django" not in icfg
 
     @run_in_subprocess(
         env_overrides=dict(
@@ -163,8 +159,10 @@ def test_tracer_loglevel_info_connection(self):
             # shove an unserializable object into the config log output
             # regression: this used to cause an exception to be raised
             ddtrace.config.version = AgentWriter(intake_url="foobar")
-            ddtrace.trace.tracer.configure()
-        assert mock.call(logging.INFO, re_matcher("- DATADOG TRACER CONFIGURATION - ")) in mock_logger.mock_calls
+            ddtrace.trace.tracer._generate_diagnostic_logs()
+        assert (
+            mock.call(logging.INFO, re_matcher("- DATADOG TRACER CONFIGURATION - ")) in mock_logger.mock_calls
+        ), mock_logger.mock_calls
 
     @run_in_subprocess(
         env_overrides=dict(
@@ -175,7 +173,7 @@ def test_tracer_loglevel_info_connection(self):
     def test_tracer_loglevel_info_no_connection(self):
         logging.basicConfig(level=logging.INFO)
         with mock.patch.object(logging.Logger, "log") as mock_logger:
-            ddtrace.trace.tracer.configure()
+            ddtrace.trace.tracer._generate_diagnostic_logs()
         assert mock.call(logging.INFO, re_matcher("- DATADOG TRACER CONFIGURATION - ")) in mock_logger.mock_calls
         assert mock.call(logging.WARNING, re_matcher("- DATADOG TRACER DIAGNOSTIC - ")) in mock_logger.mock_calls
 
@@ -296,7 +294,7 @@ def test_startup_logs_sampling_rules():
 
     f = debug.collect(tracer)
 
-    assert f.get("sampler_rules") == [
+    assert f.get("sampling_rules") == [
         "SamplingRule(sample_rate=1.0, service='NO_RULE', name='NO_RULE', resource='NO_RULE',"
         " tags='NO_RULE', provenance='default')"
     ]
diff --git a/tests/integration/test_integration.py b/tests/integration/test_integration.py
@@ -8,7 +8,6 @@
 import pytest
 
 from ddtrace.internal.atexit import register_on_exit_signal
-from tests.integration.utils import import_ddtrace_in_subprocess
 from tests.integration.utils import parametrize_with_all_encodings
 from tests.integration.utils import skip_if_testagent
 from tests.utils import DummyTracer
@@ -34,20 +33,6 @@ def test_shutdown_on_exit_signal(mock_get_signal, mock_signal):
     tracer.shutdown = original_shutdown
 
 
-def test_debug_mode_generates_debug_output():
-    p = import_ddtrace_in_subprocess(None)
-    assert p.stdout.read() == b""
-    assert b"DEBUG:ddtrace" not in p.stderr.read(), "stderr should have no debug lines when DD_TRACE_DEBUG is unset"
-
-    env = os.environ.copy()
-    env.update({"DD_TRACE_DEBUG": "true"})
-    p = import_ddtrace_in_subprocess(env)
-    assert p.stdout.read() == b""
-    assert (
-        b"debug mode has been enabled for the ddtrace logger" in p.stderr.read()
-    ), "stderr should have some debug lines when DD_TRACE_DEBUG is set"
-
-
 def test_import_ddtrace_generates_no_output_by_default(ddtrace_run_python_code_in_subprocess):
     out, err, status, _ = ddtrace_run_python_code_in_subprocess(
         """
@@ -586,6 +571,7 @@ def test_writer_flush_queue_generates_debug_log():
     from ddtrace.internal.writer import AgentWriter
     from ddtrace.settings._agent import config as agent_config
     from tests.utils import AnyFloat
+    from tests.utils import AnyInt
     from tests.utils import AnyStr
 
     encoding = os.environ["DD_TRACE_API_VERSION"]
@@ -597,7 +583,9 @@ def test_writer_flush_queue_generates_debug_log():
         calls = [
             mock.call(
                 logging.DEBUG,
-                "sent %s in %.5fs to %s",
+                "Got response: %d %s sent %s in %.5fs to %s",
+                AnyInt(),
+                AnyStr(),
                 AnyStr(),
                 AnyFloat(),
                 "{}/{}/traces".format(writer.intake_url, encoding),
diff --git a/tests/tracer/test_gitmetadata.py b/tests/tracer/test_gitmetadata.py
diff --git a/tests/tracer/test_processors.py b/tests/tracer/test_processors.py
