Open Source
Recurring problems, not one-off patches.
Across every codebase I've contributed to - OpenTelemetry, Prometheus, Liquibase, Apicurio, GoFr - the bugs I gravitate toward cluster into a handful of patterns: silent failures, thread-safety gaps, unbounded cardinality, spec drift. Browse by problem category below, not by repo.
Silent Failure & Data Loss
The recurring pattern across my contributions: a code path swallows an error or drops data instead of surfacing it, so the failure only becomes visible much later, and much harder to diagnose.
TSDB querier cleanup discarded errors from Close()
A failing block Close() during multi-block query cleanup surfaced as a successful query with missing data - no error, no log line.
Fixed by using errors.Join() to preserve concurrent cleanup failures alongside the primary error, without breaking backward compatibility.
OpenTelemetry Go (Compile Instrumentation)OpenAI streaming instrumentation dropped the final SSE chunk
If an SSE stream ended right after its final data line with no trailing newline, that line was buffered and never parsed, silently dropping finish_reason, response id, and token counts from the span.
Added a flushRemaining() step before finalize() on any read error, and applied the fix across all three duplicated copies of the reader (v1/v2/v3).
I'm Om Kulkarni - a software engineer focused on building high-performance distributed systems and robust backend architectures.
© 2026 Om Kulkarni