OpenTelemetry Tracing: Useful Evidence Without Secrets
Plan OpenTelemetry tracing with safe attributes, controlled collection, useful sampling, restricted exports, and tests that detect sensitive-data leakage.
Hackbitez journal
Category: Software
Software guides for Python, Git, PostgreSQL, Docker, and Kubernetes. Understand configuration, data boundaries, testing, troubleshooting, and recovery.
PostgreSQL VACUUM: Routine Cleanup Before Heavy Rewrites
Review PostgreSQL VACUUM through tuple cleanup, autovacuum evidence, long transactions, capacity, and the operational differences of VACUUM FULL.
PostgreSQL Deadlocks: Diagnose and Retry Safely
Handle PostgreSQL deadlocks with consistent lock ordering, short transactions, safe evidence, bounded whole-transaction retries, and side-effect controls.
Git Submodules: Review the Recorded Dependency State
Use Git submodules with reviewed sources, recorded commits, controlled updates, reproducible checkout checks, and independent trust verification.
asyncio Cancellation: Timeouts and Resource Cleanup
Handle asyncio cancellation with cooperative task behavior, explicit ownership, resource cleanup, bounded timeouts, and tests of interrupted operations.
API Pagination: Stable Ordering and Safe Cursors
Design API pagination with bounded pages, stable ordering, validated cursors, authorization filters, and documented behavior when records change.
Docker Multi-Stage Builds: A Clear Artifact Boundary
Use Docker multi-stage builds to separate compilation from runtime, copy explicit artifacts, verify dependencies, and avoid confusing image size with security.
Git Sparse Checkout: Scope Files Without Hiding Trust
Use Git sparse checkout deliberately, distinguish workspace selection from repository access, and test builds and updates against the intended file set.
Python Type Hints: Static Checks and Runtime Boundaries
Use Python type hints to clarify interfaces and support static checks while keeping runtime validation, dependency configuration, and tests independent.
PostgreSQL Partial Indexes: Match the Real Predicate
Evaluate PostgreSQL partial indexes against query predicates, data distribution, planner behavior, write cost, and representative performance tests.