構築事例 †
Twitter †
Facebook †
- Facebook の HDFS クラスターは 21 PB !!!
- 21 PB of storage in a single HDFS cluster
- 2000 machines
- 12 TB per machine (a few machines have 24 TB each)
- 1200 machines with 8 cores each + 800 machines with 16 cores each
- 32 GB of RAM per machine
- 15 map-reduce tasks per machine
Wikipedia †
東証 arrowhead †
楽天 †
モバゲー †
COOKPAD †
DECOLOG †
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