A chart is worth quite a few words:
- Yahoo’s Hadoop cluster seems to have stabilized at around 40,000 nodes
- the amount of data stored in HDFS grew to over 350PB.
- for the last couple of years, Yahoo’s Hadoop cluster added around 50PB on top of existing data
- 14mil. jobs run on YARN
- an average of 80,000 jobs/cluster/day
Original title and link: Hadoop at Yahoo!: 2013 Update ( ©myNoSQL)