[Hadoop-common-dev] [jira] Created: (HADOOP-2027) FileSystem should provide byte ranges for file locations

FileSystem should provide byte ranges for file locations
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Key: HADOOP-2027
URL: https://issues.apache.org/jira/browse/HADOOP-2027
Project: Hadoop
Issue Type: Bug
Components: fs
Reporter: Owen O'Malley
Assignee: Owen O'Malley
Fix For: 0.16.0


FileSystem's getFileCacheHints should be replaced with something more useful. I'd suggest replacing getFileCacheHints with a new method:

{code}
BlockLocation[] getFileLocations(Path file, long offset, long range) throws IOException;
{code}

and adding

{code}
class BlockLocation implements Writable {
String[] getHosts();
long getOffset();
long getLength();
}
{code}