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Do chunkservers and metadata server do their own checksumming?

April 26, 2017checksumming chunkservers metadata server

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Do chunkservers and metadata server do their own checksumming?

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Yes there is checksumming done by the system itself. We thought it would be CPU consuming but it is not really. Overhead is about 4B per a 64KiB block which is 4KiB per a 64MiB chunk (per goal).