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A very intresting journey of datA science with lot of references in Forbes article.
Nice Pictorial depiction of 1TB of data evolution.
Very interesting journey, it starts with 3,151 soccer fields space to store 1TB of data in 1956 to coin size memory cards 2014.
Features of this fusion db looks more promising.
- Internal cluster copy between two hdfs folders
hadoop distcp /tmp/output23.txt /demo
2. Internal cluster copy using hdfs url
hadoop distcp hdfs://sandbox:8020/demo hdfs://sandbox:8020/apps
File System Counters
FILE: Number of bytes read=0
FILE: Number of bytes written=640985
FILE: Number of read operations=0
FILE: Number of large read operations=0
FILE: Number of write operations=0
HDFS: Number of bytes read=953979
HDFS: Number of bytes written=948926
HDFS: Number of read operations=179
HDFS: Number of large read operations=0
HDFS: Number of write operations=41
Launched map tasks=5
Other local map tasks=5
Total time spent by all maps in occupied slots (ms)=283995
Total time spent by all reduces in occupied slots (ms)=0
Total time spent by all map tasks (ms)=56799
Total vcore-seconds taken by all map tasks=56799
Total megabyte-seconds taken by all map tasks=58162176
Map input records=20
Map output records=0
Input split bytes=575
Merged Map outputs=0
GC time elapsed (ms)=1634
CPU time spent (ms)=9360
Physical memory (bytes) snapshot=683446272
Virtual memory (bytes) snapshot=4112478208
Total committed heap usage (bytes)=659030016
File Input Format Counters
File Output Format Counters