Linux Code Review Hub
Mar 11, 2024 · Databases
How Didi Built a Next‑Gen Log Storage System with ClickHouse
Didi migrated its massive PB‑scale log data from Elasticsearch to ClickHouse, redesigning storage with separate Log and Trace clusters, optimizing partition and sorting keys, introducing native TCP connectors, and revamping HDFS cold‑hot separation, achieving up to four‑fold query speed gains and 30% lower hardware costs.
ClickHouseFlinkdistributed-systems
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