Docker Image Digest Pinning vs Mutable Tags in CI Releases
A mutable image tag is a movable name, while a digest identifies specific image content. Define the real service goal before choosing a setting. The expected...
Blog
All troubleshooting articles, newest first.
PostgreSQL Autovacuum Tuning for High Update Workloads
Autovacuum helps reclaim dead tuples and maintain planner statistics, but sustained updates can outrun default maintenance settings. Begin with requirements...
AI Agent Idempotency Keys for External Tool Actions
Agent actions with external side effects need stable operation identifiers and duplicate-safe server behavior. Begin with requirements and the workload. Record...
RAG Hybrid Search Ranking With Metadata Filters
Hybrid retrieval combines semantic and lexical signals, while metadata filters enforce eligibility and narrow search. Begin with requirements and the workload....
DNS TTL and Negative Caching for Service Reliability
DNS caching influences how quickly clients observe address changes; negative caching can prolong recovery after failed lookups. Begin with requirements and the...
OAuth Token Audience Validation Between Microservices
Audience validation stops a token meant for one service from being accepted as authorization by an unrelated service. Begin with requirements and the workload....
MySQL Covering Indexes vs Read Amplification in OLTP
Covering indexes avoid some table lookups but add storage and write maintenance that can affect transaction throughput. Begin with requirements and the...
MySQL InnoDB Deadlock Retry Strategies for REST APIs
Deadlocks can occur during legitimate concurrent transactions, and bounded transaction retries should respect idempotency and transaction scopes. Begin with...
Bash Trap Cleanup Patterns for Interrupted CI Jobs
Shell traps can clean temporary resources, but signal handling and exit-status preservation need deliberate design. Begin with requirements and the workload....