[HDFS-10937] libhdfs++: hdfsRead return -1 at eof

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: hdfs-client
• Assignee: Unassigned
• Reporter: Bob Hansen
• Created: 30/Sep/16 17:01
• Updated: 26/Oct/18 13:17

Description

The libhdfs++ implementation of hdfsRead appears to be out-of-spec. The header says it will return 0 at eof, but the current implementation returns -1 with an errno of 261 (invalid offset).

The basic posix-y read loop of
while ( (bytesRead = hdsfRead(...)) != 0)

{...}

won't work with with libhdfs++'s hdfsRead method.