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Facebook compresses its 300 petabyte Hadoop Hive data warehouse layer by factor of 8x

Facebook’s 300 PB data warehouse grows by approximately 600 TB per day and resides on more than 100k servers (although I’m not certain how many of those are Hadoop nodes). With the brute force approach of more storage and more servers reaching a logistical limit, the Facebook engineers have increased their level of data compression to 8x (using a custom modification of the Hortonworks ORCFile) from a previous 5x (using RCFile) compression. The Hortonworks ORCFile is generally faster than RCFile when reading, but is slower on writing. Facebook’s custom ORCFile was always fastest on both read and write and also the best compression.

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