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When a partitioning change to our petabyte-scale ClickHouse cluster caused critical billing jobs to stall, standard metrics showed no obvious errors. This post explores how we identified severe lock contention in ClickHouse's query planner…
PostgreSQL 19 brings back MERGE PARTITIONS and SPLIT PARTITION—but simpler and safer than the first attempt.
Yesterday, we had our first meetup at our new venue, which we hope will become our permanent home: the Chicago Innovations Center at 1 W. Monroe. We had the pleasure of having Elizabeth Christensen from Snowflake, who delivered a talk…
After a year and one million messages, Elastic's Field Technology team shares five lessons from building production AI agents: why logs matter most, how retrieval thresholds shape quality, and what high token counts actually signal.