[HDFS-10951] libhdfs++: FileHandle should handle DN failure internally

• Type: Sub-task
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: hdfs-client
• Assignee: James Clampffer
• Reporter: James Clampffer
• Created: 03/Oct/16 21:51
• Updated: 26/Oct/18 13:20

Description

Currently if a read hits a bad DN it will add it to the DN exclusion set and return an error. It'd be nice if it'd exhaust attempts to all replica locations before returning an error so client applications don't have to attempt to figure out the difference between "File not found" and "DN not responsive, go try a different DN".

Related to HDFS-10937