TechSpotify Engineeringabout 1 hour ago
Indexing the Data Lake for Online Point Queries
1 min read
Spotify built Random Access Parquet (RAP) to enable fast point queries on exabyte-scale data lakes. An external index maps keys directly to file locations, eliminating dependent read chains. RAP operates on existing Parquet files without modification, reducing latency from seconds to milliseconds.
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