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debug: preserve stderr in CI to debug embedding server startup failures

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Previous fix revealed the real issue: embedding server fails to start within 120s,
not timeout issues. The error was hidden because both stdout and stderr were
redirected to DEVNULL in CI.

Changes:
- Keep stderr output in CI environment for debugging
- Only redirect stdout to DEVNULL to avoid buffer deadlock
- This will help us see why embedding server startup is failing

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Andy Lee
2025-08-13 13:29:52 -07:00
parent f30166f9d5
commit b381278c3e
1 changed files with 6 additions and 4 deletions
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10
packages/leann-core/src/leann/embedding_server_manager.py
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@@ -304,13 +304,15 @@ class EmbeddingServerManager:
project_root = Path(__file__).parent.parent.parent.parent.parent project_root = Path(__file__).parent.parent.parent.parent.parent
logger.info(f"Command: {' '.join(command)}") logger.info(f"Command: {' '.join(command)}")
# In CI environment, redirect output to avoid buffer deadlock # In CI environment, redirect stdout to avoid buffer deadlock but keep stderr for debugging
# Embedding servers use many print statements that can fill buffers # Embedding servers use many print statements that can fill stdout buffers
is_ci = os.environ.get("CI") == "true" is_ci = os.environ.get("CI") == "true"
if is_ci: if is_ci:
stdout_target = subprocess.DEVNULL stdout_target = subprocess.DEVNULL
stderr_target = subprocess.DEVNULL stderr_target = None # Keep stderr for error debugging in CI
logger.info("CI environment detected, redirecting embedding server output to DEVNULL") logger.info(
"CI environment detected, redirecting embedding server stdout to DEVNULL, keeping stderr"
)
else: else:
stdout_target = None # Direct to console for visible logs stdout_target = None # Direct to console for visible logs
stderr_target = None # Direct to console for visible logs stderr_target = None # Direct to console for visible logs