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SNOW-2204396: Logging suppressed
1 parent b9bc689 commit 4f45233

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2 files changed

+150
-73
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2 files changed

+150
-73
lines changed

‎src/snowflake/connector/platform_detection.py‎

Lines changed: 108 additions & 69 deletions
Original file line numberDiff line numberDiff line change
@@ -6,6 +6,7 @@
66
from concurrent.futures import CancelledError as FutureCancelledError
77
from concurrent.futures import TimeoutError as FutureTimeoutError
88
from concurrent.futures.thread import ThreadPoolExecutor
9+
from contextlib import contextmanager
910
from enum import Enum
1011
from functools import cache
1112

@@ -24,6 +25,36 @@
2425

2526
logger = logging.getLogger(__name__)
2627

28+
# Loggers to suppress during platform detection to avoid noise in customer logs
29+
_LOGGERS_TO_SUPPRESS = [
30+
"snowflake.connector.vendored.urllib3.connectionpool",
31+
"botocore.utils",
32+
"botocore.httpsession",
33+
"urllib3.connectionpool",
34+
]
35+
36+
37+
@contextmanager
38+
def _suppress_platform_detection_logs():
39+
"""
40+
Context manager to completely suppress all logs from underlying HTTP libraries during platform detection.
41+
42+
This prevents any logs (including errors/warnings) from urllib3 and botocore when detecting
43+
cloud platforms, which can confuse customers (SNOW-2204396). Our own debug logs are not affected.
44+
"""
45+
original_levels = {}
46+
try:
47+
# Completely suppress all logs from noisy libraries
48+
for logger_name in _LOGGERS_TO_SUPPRESS:
49+
lib_logger = logging.getLogger(logger_name)
50+
original_levels[logger_name] = lib_logger.level
51+
lib_logger.setLevel(logging.CRITICAL + 1) # Above CRITICAL = no logs at all
52+
yield
53+
finally:
54+
# Restore original log levels
55+
for logger_name, level in original_levels.items():
56+
logging.getLogger(logger_name).setLevel(level)
57+
2758

2859
class _DetectionState(Enum):
2960
"""Internal enum to represent the detection state of a platform."""
@@ -443,74 +474,82 @@ def detect_platforms(
443474
use_pooling=False, max_retries=0
444475
)
445476

446-
# Run environment-only checks synchronously (no network calls, no threading overhead)
447-
platforms = {
448-
"is_aws_lambda": is_aws_lambda(),
449-
"is_azure_function": is_azure_function(),
450-
"is_gce_cloud_run_service": is_gcp_cloud_run_service(),
451-
"is_gce_cloud_run_job": is_gcp_cloud_run_job(),
452-
"is_github_action": is_github_action(),
453-
}
454-
455-
# Run network-calling functions in parallel
456-
if platform_detection_timeout_seconds != 0.0:
457-
with ThreadPoolExecutor(max_workers=6) as executor:
458-
futures = {
459-
"is_ec2_instance": executor.submit(
460-
is_ec2_instance, platform_detection_timeout_seconds
461-
),
462-
"has_aws_identity": executor.submit(
463-
has_aws_identity, platform_detection_timeout_seconds
464-
),
465-
"is_azure_vm": executor.submit(
466-
is_azure_vm,
467-
platform_detection_timeout_seconds,
468-
session_manager,
469-
),
470-
"has_azure_managed_identity": executor.submit(
471-
has_azure_managed_identity,
472-
platform_detection_timeout_seconds,
473-
session_manager,
474-
),
475-
"is_gce_vm": executor.submit(
476-
is_gce_vm,
477-
platform_detection_timeout_seconds,
478-
session_manager,
479-
),
480-
"has_gcp_identity": executor.submit(
481-
has_gcp_identity,
482-
platform_detection_timeout_seconds,
483-
session_manager,
484-
),
485-
}
486-
487-
# Enforce timeout at executor level - all parallel detections must complete
488-
# within platform_detection_timeout_seconds
489-
for key, future in futures.items():
490-
try:
491-
platforms[key] = future.result(
492-
timeout=platform_detection_timeout_seconds
493-
)
494-
except (FutureTimeoutError, FutureCancelledError):
495-
# Thread/future timed out at executor level
496-
platforms[key] = _DetectionState.WORKER_TIMEOUT
497-
except Exception:
498-
# Any other error from the thread
499-
platforms[key] = _DetectionState.NOT_DETECTED
500-
501-
detected_platforms = []
502-
for platform_name, detection_state in platforms.items():
503-
if detection_state == _DetectionState.DETECTED:
504-
detected_platforms.append(platform_name)
505-
elif detection_state in (
506-
_DetectionState.HTTP_TIMEOUT,
507-
_DetectionState.WORKER_TIMEOUT,
508-
):
509-
detected_platforms.append(f"{platform_name}_timeout")
510-
511-
logger.debug(
512-
"Platform detection completed. Detected platforms: %s", detected_platforms
513-
)
514-
return detected_platforms
477+
# HTTP timeout should be slightly shorter than thread timeout to allow HTTP-level
478+
# timeouts to occur before thread executor times out. This helps distinguish between
479+
# HTTP_TIMEOUT (network issue) and WORKER_TIMEOUT (thread stuck/hung).
480+
http_timeout_epsilon = 0.05 # 5% shorter
481+
http_timeout = platform_detection_timeout_seconds * (1 - http_timeout_epsilon)
482+
threads_timeout = platform_detection_timeout_seconds
483+
484+
# Suppress noisy logs from underlying HTTP libraries during platform detection
485+
with _suppress_platform_detection_logs():
486+
# Run environment-only checks synchronously (no network calls, no threading overhead)
487+
platforms = {
488+
"is_aws_lambda": is_aws_lambda(),
489+
"is_azure_function": is_azure_function(),
490+
"is_gce_cloud_run_service": is_gcp_cloud_run_service(),
491+
"is_gce_cloud_run_job": is_gcp_cloud_run_job(),
492+
"is_github_action": is_github_action(),
493+
}
494+
495+
# Run network-calling functions in parallel
496+
if platform_detection_timeout_seconds != 0.0:
497+
with ThreadPoolExecutor(max_workers=6) as executor:
498+
futures = {
499+
"is_ec2_instance": executor.submit(
500+
is_ec2_instance, http_timeout
501+
),
502+
"has_aws_identity": executor.submit(
503+
has_aws_identity, http_timeout
504+
),
505+
"is_azure_vm": executor.submit(
506+
is_azure_vm,
507+
http_timeout,
508+
session_manager,
509+
),
510+
"has_azure_managed_identity": executor.submit(
511+
has_azure_managed_identity,
512+
http_timeout,
513+
session_manager,
514+
),
515+
"is_gce_vm": executor.submit(
516+
is_gce_vm,
517+
http_timeout,
518+
session_manager,
519+
),
520+
"has_gcp_identity": executor.submit(
521+
has_gcp_identity,
522+
http_timeout,
523+
session_manager,
524+
),
525+
}
526+
527+
# Enforce timeout at executor level - all parallel detections must complete
528+
# within threads_timeout
529+
for key, future in futures.items():
530+
try:
531+
platforms[key] = future.result(timeout=threads_timeout)
532+
except (FutureTimeoutError, FutureCancelledError):
533+
# Thread/future timed out at executor level
534+
platforms[key] = _DetectionState.WORKER_TIMEOUT
535+
except Exception:
536+
# Any other error from the thread
537+
platforms[key] = _DetectionState.NOT_DETECTED
538+
539+
detected_platforms = []
540+
for platform_name, detection_state in platforms.items():
541+
if detection_state == _DetectionState.DETECTED:
542+
detected_platforms.append(platform_name)
543+
elif detection_state in (
544+
_DetectionState.HTTP_TIMEOUT,
545+
_DetectionState.WORKER_TIMEOUT,
546+
):
547+
detected_platforms.append(f"{platform_name}_timeout")
548+
549+
logger.debug(
550+
"Platform detection completed. Detected platforms: %s",
551+
detected_platforms,
552+
)
553+
return detected_platforms
515554
except Exception:
516555
return []

‎test/unit/test_detect_platforms.py‎

Lines changed: 42 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,6 @@
11
from __future__ import annotations
22

3+
import logging
34
import os
45
import time
56
from unittest.mock import Mock, patch
@@ -444,8 +445,45 @@ def test_platform_detection_completes_within_timeout(
444445
f"Platform detection took {execution_time:.3f}s, "
445446
f"which exceeds the maximum allowed time of {max_allowed_time}s"
446447
)
447-
# Ensure it's not suspiciously fast (< 10ms would indicate something's wrong)
448-
assert execution_time > 0.01, (
449-
f"Platform detection completed too quickly ({execution_time:.3f}s), "
450-
"which may indicate detection was skipped or some other issues happened"
448+
if execution_time > 0.01:
449+
logging.warning(
450+
f"Platform detection completed very quickly ({execution_time:.3f}s), "
451+
"which may indicate detection was skipped or some other issues happened"
452+
)
453+
454+
def test_platform_detection_suppresses_all_library_logs(
455+
self, unavailable_metadata_service, caplog
456+
):
457+
"""Test that platform detection suppresses ALL logs from urllib3 and botocore (SNOW-2204396)"""
458+
# Set DEBUG level to ensure we would normally see these logs
459+
caplog.set_level(logging.DEBUG)
460+
461+
# Run platform detection
462+
detect_platforms(
463+
platform_detection_timeout_seconds=EXPECTED_MAX_TIMEOUT_FOR_PLATFORM_DETECTION
451464
)
465+
466+
# Verify that NO logs from noisy libraries are present (any level)
467+
library_log_records = [
468+
record
469+
for record in caplog.records
470+
if any(
471+
logger in record.name
472+
for logger in [
473+
"urllib3.connectionpool",
474+
"botocore.utils",
475+
"botocore.httpsession",
476+
]
477+
)
478+
]
479+
assert (
480+
len(library_log_records) == 0
481+
), f"Library logs were not suppressed: {library_log_records}"
482+
483+
# Verify our own debug logs are still present
484+
our_logs = [
485+
record
486+
for record in caplog.records
487+
if record.name == "snowflake.connector.platform_detection"
488+
]
489+
assert len(our_logs) > 0, "Our own debug logs should not be suppressed"

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