PostgreSQL JSONB Indexing: Match Operators to the Query
Plan PostgreSQL JSONB indexing from real operators, expression paths, GIN choices, data shape, write cost, and representative execution-plan evidence.
Hackbitez journal
Category: Software
Software guides for Python, Git, PostgreSQL, Docker, and Kubernetes. Understand configuration, data boundaries, testing, troubleshooting, and recovery.
PostgreSQL Advisory Locks: Cooperative Work Ownership
Use PostgreSQL advisory locks with agreed keys, session or transaction lifetimes, pool-aware cleanup, bounded waits, and verified cooperative workflows.
Kubernetes CronJobs: Scheduling Without Exactly Once
Design Kubernetes CronJobs with explicit time zones, concurrency policies, missed-run handling, idempotent tasks, bounded retries, and observable outcomes.
Pod Topology Spread: Placement With Capacity Evidence
Plan Pod topology spread with reliable node labels, matching selectors, hard or soft constraints, capacity checks, and tested rollout and failure behavior.
S3 Lifecycle Rules: Retention Before Storage Savings
Plan S3 lifecycle rules with reviewed object scope, existing-data impact, storage-class costs, version retention, recovery needs, and monitored rollout.
Content-Disposition: Download Names and Browser Behavior
Use Content-Disposition with framework-safe headers, controlled filenames, correct content types, private-download authorization, and real client tests.
HTTP Retry-After: Bounded Retries Without Extra Damage
Handle HTTP Retry-After with correct parsing, bounded waits, idempotent operations, retry budgets, jitter, and clear behavior for exhausted requests.
Gitignore Rules: Untracked Files Are Not Secret Removal
Use Gitignore rules with clear pattern scope, tracked-file checks, staged-diff review, artifact inspection, and real credential rotation after exposure.
PostgreSQL Timeouts: Bound the Right Kind of Waiting
Configure PostgreSQL timeouts by workload and scope, distinguish statement and lock waits, handle canceled transactions, and verify pooled connections.
Prometheus Alerting: Symptoms, Ownership and Action
Design Prometheus alerting around user impact, stable rules, useful pending periods, ownership, routing, missing-data checks, and tested runbooks.