Hi all, Why does MapReduce handle input split files one line at a time?
Or is it not fast enough to read all the input split (ex: 128MB) and put the data in memory and process the data (string) in memory? If you are processing one row at a time, as in the current approach, is not the Java application making line-by-line read system calls to the operating system? Best Regards, Daegyu --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@hadoop.apache.org For additional commands, e-mail: user-h...@hadoop.apache.org
