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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-668) TestFileAppend3#TC7 sometimes hangs
Date Thu, 01 Oct 2009 18:38:23 GMT
TestFileAppend3#TC7 sometimes hangs
-----------------------------------

                 Key: HDFS-668
                 URL: https://issues.apache.org/jira/browse/HDFS-668
             Project: Hadoop HDFS
          Issue Type: Sub-task
    Affects Versions: 0.21.0
            Reporter: Hairong Kuang
             Fix For: 0.21.0


TestFileAppend3 hangs because it fails on close the file. The following is the snippet of
logs that shows the cause of the problem:
    [junit] 2009-10-01 07:00:00,719 WARN  hdfs.DFSClient (DFSClient.java:setupPipelineForAppendOrRecovery(3004))
- Error Recovery for block blk_-4098350497078465335_1007 in pipeline 127.0.0.1:58375, 127.0.0.1:36982:
bad datanode 127.0.0.1:36982
    [junit] 2009-10-01 07:00:00,721 INFO  datanode.DataNode (DataXceiver.java:opWriteBlock(224))
- Receiving block blk_-4098350497078465335_1007 src: /127.0.0.1:40252 dest: /127.0.0.1:58375
    [junit] 2009-10-01 07:00:00,721 INFO  datanode.DataNode (FSDataset.java:recoverClose(1248))
- Recover failed close blk_-4098350497078465335_1007
    [junit] 2009-10-01 07:00:00,723 INFO  datanode.DataNode (DataXceiver.java:opWriteBlock(369))
- Received block blk_-4098350497078465335_1008 src: /127.0.0.1:40252 dest: /127.0.0.1:58375
of size 65536
    [junit] 2009-10-01 07:00:00,724 INFO  hdfs.StateChange (BlockManager.java:addStoredBlock(1006))
- BLOCK* NameSystem.addStoredBlock: addStoredBlock request received for blk_-4098350497078465335_1008
on 127.0.0.1:58375 size 65536 But it does not belong to any file.
    [junit] 2009-10-01 07:00:00,724 INFO  namenode.FSNamesystem (FSNamesystem.java:updatePipeline(3946))
- updatePipeline(block=blk_-4098350497078465335_1007, newGenerationStamp=1008, newLength=65536,
newNodes=[127.0.0.1:58375], clientName=DFSClient_995688145)
 

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