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vivo Internet Technology
vivo Internet Technology
Mar 26, 2025 · Big Data

Reading Encrypted ORC Files in StarRocks: Architecture and Implementation Details

The article details how StarRocks extends the Apache ORC C++ library to decrypt column‑level encrypted ORC files, describing the file hierarchy, AES‑128‑CTR key handling, the query‑time master‑key retrieval, a decorator‑based decryption/decompression pipeline, and the block‑skip‑read mechanism that enables efficient predicate push‑down.

Big DataDatabaseEncryption
0 likes · 19 min read
Reading Encrypted ORC Files in StarRocks: Architecture and Implementation Details
Ctrip Technology
Ctrip Technology
Sep 10, 2020 · Big Data

Design and Implementation of a Unified Log Framework for Ctrip Payment Center

The article describes the design, architecture, and operational details of a unified logging framework at Ctrip's payment center, covering log production via a Log4j2 extension, Kafka‑Camus collection, Hive/ORC storage, MapReduce parsing optimizations, and governance strategies for massive daily TB‑scale data.

Big DataHadoopMapReduce
0 likes · 15 min read
Design and Implementation of a Unified Log Framework for Ctrip Payment Center