hadoop

History

Mukund Thakur 51c64b357d HDFS-13660. DistCp job fails when new data is appended in the file while the DistCp copy job is running This uses the length of the file known at the start of the copy to determine the amount of data to copy. * If a file is appended to during the copy, the original bytes are copied. * If a file is truncated during a copy, or the attempt to read the data fails with a truncated stream, distcp will now fail. Until now these failures were not detected. Contributed by Mukund Thakur. Change-Id: I576a49d951fa48d37a45a7e4c82c47488aa8e884		2019-09-24 11:23:24 +01:00
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src	HDFS-13660. DistCp job fails when new data is appended in the file while the DistCp copy job is running	2019-09-24 11:23:24 +01:00
pom.xml	HADOOP-16331. Fix ASF License check in pom.xml	2019-05-29 17:25:13 +09:00
README	HADOOP-11437. Remove the version and author information from distcp's README file (Brahma Reddy Battula via aw)	2015-02-11 15:47:36 -08:00

README

DistCp (distributed copy) is a tool used for large inter/intra-cluster copying. 
It uses Map/Reduce to effect its distribution, error handling and recovery, 
and reporting. It expands a list of files and directories into input to map tasks, 
each of which will copy a partition of the files specified in the source list.