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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-5554) DataNodeCluster should create blocks with the same generation stamp as the blocks created in CreateEditsLog
Date Mon, 23 Mar 2009 17:51:51 GMT
DataNodeCluster should create blocks with the same generation stamp as the blocks created in
CreateEditsLog
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                 Key: HADOOP-5554
                 URL: https://issues.apache.org/jira/browse/HADOOP-5554
             Project: Hadoop Core
          Issue Type: Bug
    Affects Versions: 0.19.1
            Reporter: Hairong Kuang
            Assignee: Hairong Kuang
             Fix For: 0.19.2, 0.20.0, 0.21.0


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.

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