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  1. Core Server
  2. SERVER-32595

LZ4 compression in MongoDB

    • Type: Icon: New Feature New Feature
    • Resolution: Won't Fix
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: None
    • Component/s: WiredTiger
    • Labels:

      WiredTiger added LZ4 support more than two years ago, but MongoDB does not enable it. Why not? LZ4 has better compression ratio and speed than snappy.

      I confirmed my experimental patch for lz4 works on YCSB benchmarks as well as other compression codecs. In the experiments, the compression ratio of storage size is reduced from 28% to 15% if I change journal and block compressors in WiredTiger from snappy to lz4. I used a YCSB in https://github.com/mongodb-labs/YCSB with compressibility=10.

            Assignee:
            brian.lane@mongodb.com Brian Lane
            Reporter:
            t.yoshimura Takeshi Yoshimura
            Votes:
            2 Vote for this issue
            Watchers:
            15 Start watching this issue

              Created:
              Updated:
              Resolved: