DiDi Global migrated from HDFS to Apache Ozone to handle over 500PB of annual data growth. The transition addressed metadata bottlenecks, read-heavy workload performance issues, and high storage costs from triple replication. By implementing Ozone's RocksDB-based metadata management and Erasure Coding (6-3), DiDi reduced
Table of contents
The Challenge: Scaling Without CompromiseThe Solution: Apache OzoneThe Results: Faster, Leaner, and More ReliableSmooth Adoption Through Planning and Community CollaborationTechnical HighlightsLooking AheadThe TakeawaySort: