P99 Blog

Glauber Costa

Direct I/O Writes: The Path to Storage Wealth

When writing to files on modern storage, you can write for cheap at first, but you are bound to pay the real cost — with interest — later. Direct I/O can set you on the path to building real storage wealth.

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Denis Rystsov

Kafka-Compatible Fast Distributed Transactions

Transactions bring exactly-once semantics (EOS) to streaming processing. They help developers avoid the anomalies of at-most-once or at-least-once processing (lost or duplicated events, respectively) and focus only on the essential logic.

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