[HDFS-12318] Fix IOException condition for openInfo in DFSInputStream

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-beta1
• Fix Version/s: 3.0.0-beta1, 2.8.3, 2.10.0, 2.9.1
• Target Version/s: 3.0.0-beta1
• Assignee: legend
• Reporter: legend
• Created: 18/Aug/17 09:46
• Updated: 09/Nov/17 17:51
• Resolved: 24/Aug/17 07:52

Description

when retriesForLastBlockLength == 0 and lastBlockBeingWrittenLength != -1, "openInfo" successfully obtains the last blcok locations, and the function still throws IOException.