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Displaying posts with tag: unorthodox (reset)

Semi-sync replication (5.5)
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A bit unorthodox, I normally just write about MySQL Cluster here, but I just wanted to understand how much latency semi-sync replication adds.

The test was very simple:

  • two mysql servers, interconnected (same switch) on a 1 Gig-E network
  • one table (see below)
  • comparing insert performance (one thread) with 'no replication at all' and 'semi sync replication enabled'.
  • bencher (had to hack it a bit to make it work with vanilla mysql) running one thread, inserting 4B+128B+4B = 136B of data
`data` …

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