I have not been able to reproduce this: [raviprak@ravi ~]$ hdfs dfs -put HuckleberryFinn.txt / [raviprak@ravi ~]$ cd /tmp [raviprak@ravi tmp]$ hdfs dfs -get /HuckleberryFinn.txt [raviprak@ravi tmp]$ hdfs dfs -cat /HuckleberryFinn.txt > hck [raviprak@ravi tmp]$ md5sum hck 8dc8966178cc1bf4eb95a5b31780269c hck [raviprak@ravi tmp]$ md5sum HuckleberryFinn.txt 8dc8966178cc1bf4eb95a5b31780269c HuckleberryFinn.txt [raviprak@ravi tmp]$ hdfs dfs -put hck / [raviprak@ravi tmp]$ hdfs dfs -checksum /HuckleberryFinn.txt /HuckleberryFinn.txt MD5-of-0MD5-of-512CRC32C 000002000000000000000000c99e8741a1f3d311513df9d9e73b0bc8 [raviprak@ravi tmp]$ hdfs dfs -checksum /hck /hck MD5-of-0MD5-of-512CRC32C 000002000000000000000000c99e8741a1f3d311513df9d9e73b0bc8
This is on trunk. On Sun, Jan 8, 2017 at 6:52 PM, Mungeol Heo <mungeol....@gmail.com> wrote: > "^A" is used as delimiter in the file. > However, I don't think this is the reason causing the problem, because > there are files also using "^A" as delimiter but with no problem. > BTW, the reason using "^A" as delimiter is these files are hive data. > > On Sat, Jan 7, 2017 at 12:17 AM, Ravi Prakash <ravihad...@gmail.com> > wrote: > > Is there a carriage return / new line / some other whitespace which `cat` > > may be appending? > > > > On Thu, Jan 5, 2017 at 6:09 PM, Mungeol Heo <mungeol....@gmail.com> > wrote: > >> > >> Hello, > >> > >> Suppose, I name the HDFS file which cause the problem as A. > >> > >> hdfs dfs -ls A > >> -rw-r--r-- 3 web_admin hdfs 868003931 2017-01-04 09:05 A > >> > >> hdfs dfs -get A AFromGet > >> hdfs dfs -cat A > AFromCat > >> > >> ls -l > >> -rw-r--r-- 1 hdfs hadoop 883715443 Jan 5 18:32 AFromGet > >> -rw-r--r-- 1 hdfs hadoop 883715443 Jan 5 18:32 AFromCat > >> > >> hdfs dfs -put AFromGet > >> > >> diff <(hdfs dfs -cat A) <(hdfs dfs -cat AFromGet) > >> (no output, which means the contents of two files are same. At least, > >> after "cat") > >> > >> hdfs dfs -checksum A > >> A MD5-of-262144MD5-of-512CRC32C > >> 000002000000000000040000e667fb4f0dda78101feb2b689af8260b > >> > >> hdfs dfs -checksum AFromGet > >> AFromGet MD5-of-262144MD5-of-512CRC32C > >> 0000020000000000000400007284759249ff98c7395e6a4bb59343dc > >> > >> As I listed some results above. I wonder why is the size of the file > >> changed. > >> Any help will be GREAT! > >> > >> Thank you. > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: user-unsubscr...@hadoop.apache.org > >> For additional commands, e-mail: user-h...@hadoop.apache.org > >> > > >
