[HDFS-927] DFSInputStream retries too many times for new block locations

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 0.20-append, 0.21.0, 0.22.0
• Fix Version/s: 0.20.2, 0.21.0
• Component/s: hdfs-client
• Hadoop Flags: Reviewed
• Assignee: Todd Lipcon
• Reporter: Todd Lipcon
• Created: 26/Jan/10 21:36
• Updated: 24/Aug/10 20:51
• Resolved: 09/Feb/10 20:28

Description

I think this is a regression caused by HDFS-127 – DFSInputStream is supposed to only go back to the NN max.block.acquires times, but in trunk it goes back twice as many - the default is 3, but I am counting 7 calls to getBlockLocations before an exception is thrown.

Issue Links

• relates to: HDFS-127 DFSClient block read failures cause open DFSInputStream to become unusable