[HADOOP-5286] DFS client blocked for a long time reading blocks of a file on the JobTracker

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 0.20.0
• Assignee: Unassigned
• Reporter: Hemanth Yamijala
• Created: 19/Feb/09 12:23
• Updated: 08/Jul/09 16:43
• Resolved: 27/Feb/09 21:49

Description

On a large cluster, we've observed that DFS client was blocked on reading a block of a file for almost 1 and half hours. The file was being read by the JobTracker of the cluster, and was a split file of a job. On the NameNode logs, we observed that the block had a message as follows:

Inconsistent size for block blk_2044238107768440002_840946 reported from <ip>:<port> current size is 195072 reported size is 1318567

Details follow.

Issue Links

• is part of: HADOOP-4664 Parallelize job initialization