October 26, 2011

Facebook Message Stats, 6 Billion Messages Per Day




  • 6 billion messages per day
  • 75 billion read/write operations per day
  • 1.5 million IO per second at the peak
  • 55% read, 45% write
  • 2 Petabyte compressed data in Hbase, 6 Petabyte with replication

per Kannan Muthukkaruppan at Facebook.