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Dec 11, 2024 · Databases

RocksDB Memory Usage Analysis and Optimization: Troubleshooting Excessive Memory Consumption in Production

The article examines a production RocksDB memory‑usage problem where two instances consumed 59 GB on a 32‑CPU, 64‑GB server, identifies glibc ptmalloc’s unreclaimed free memory as the main cause, and shows that switching to jemalloc cuts usage by roughly 25 % while improving I/O and CPU efficiency.