Tongcheng Travel Technology Center
Nov 2, 2021 · Big Data
Hadoop Cluster Cross-Data Center Migration Practice at Tongcheng Travel
This article details Tongcheng Travel’s month‑long, zero‑downtime migration of hundreds of petabytes of Hadoop HDFS and YARN clusters across data centers, describing the background, migration strategies, lessons learned, tool enhancements, and future plans to improve data locality, balance, and monitoring.
Cluster MigrationDistCpHDFS
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