[HADOOP-5554] DataNodeCluster should create blocks with the same generation stamp as the blocks created in CreateEditsLog

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.19.2
• Fix Version/s: 0.19.2, 0.20.0
• Component/s: test
• Hadoop Flags: Reviewed
• Assignee: Hairong Kuang
• Reporter: Hairong Kuang
• Created: 23/Mar/09 17:51
• Updated: 23/Apr/09 19:18
• Resolved: 24/Mar/09 00:22

Description

HADOOP-5384 makes DataNodeCluster to create blocks with generation stamp Block#GRANDFATHER_GENERATION_STAMP(0) so simuated datanodes do not crash NameNode any more. But there is still a problem. CreateEditLogs creates blocks with generation stamp GenerationStamp#FIRST_VALID_STAMP (1000). Because of the generation stamp mismatch, all injected blocks are marked as invalid when NameNode processes block reports.