Chenzhao Guo created HDFS-14592:
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Summary: Support NIO transferTo semantics in HDFS
Key: HDFS-14592
URL: https://issues.apache.org/jira/browse/HDFS-14592
Project: Hadoop HDFS
Issue Type: New Feature
Reporter: Chenzhao Guo
I'm currently developing a Spark shuffle manager based on HDFS. I need to merge
some spill files on HDFS to one, or rearrange some HDFS files.
An API similar to NIO transferTo, which bypasses memory will be more efficient
than manually reading and writing bytes(the method I'm using at present).
So can HDFS implements something like NIO transferTo? Making
path.transferTo(pathDestination) possible?
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