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From reena upadhyay <reena2...@outlook.com>
Subject Does hadoop depends on ecc memory to generate checksum for data stored in HDFS
Date Fri, 28 Mar 2014 09:45:22 GMT
To ensure data I/O integrity,  hadoop uses CRC 32 mechanism  to generate checksum for the data
stored on hdfs . But suppose I have a data node machine that does not have ecc(error correcting
code) type of memory, So will hadoop hdfs will be able to generate checksum for data blocks
when read/write will happen in hdfs?

Or In simple words, Does hadoop depends on ecc memory to generate checksum for data stored
in HDFS?


 		 	   		  
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