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The pod restarted spontaneously mid-search (no liveness probe is set, so it was the kernel OOM-killer against the 1Gi limit). Cause: search_bot built its work queue with maxsize 35_500_000. The producers stream the WHOLE DOI database (tens of millions of lines across chunks) into it while a few consumers drain, so the queue could buffer gigabytes of lines - blowing the 1Gi container and taking the whole in-flight search with it. Bound the queue (default 100k lines, env CONJURER_LIBRARIAN_WORKQ_SIZE), so producers backpressure to consumers and RAM stays in the low MB. Because a bounded queue means a producer can now block on a FULL queue, make the producer's put timeout-poll the TERM sentinel, so a full queue whose consumers have already finished (all DOIs found) can never deadlock it. New test pins that: tiny queue + target on line 1 + thousands of trailing decoys still terminates and finds the target. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>