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https://issues.apache.org/jira/browse/HADOOP-2658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12638944#action_12638944
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Chris Douglas commented on HADOOP-2658:
---------------------------------------
Manual tests for items 4 and 14 passed, but 7 failed with the following
exception:
{noformat}
08/10/13 04:53:20 WARN hdfs.DFSClient: DFSOutputStream ResponseProcessor
exception for block blk_-2897952013639714624_1002java.io.IOException:
Connection reset by peer
at sun.nio.ch.FileDispatcher.read0(Native Method)
at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:21)
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:233)
at sun.nio.ch.IOUtil.read(IOUtil.java:206)
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:236)
at
org.apache.hadoop.net.SocketInputStream$Reader.performIO(SocketInputStream.java:55)
at
org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:140)
at
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:150)
at
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:123)
at java.io.DataInputStream.readFully(DataInputStream.java:178)
at java.io.DataInputStream.readLong(DataInputStream.java:399)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$ResponseProcessor.run(DFSClient.java:2307)
08/10/13 04:53:20 WARN hdfs.DFSClient: Error Recovery for block
blk_-2897952013639714624_1002 bad datanode[0] 67.195.209.61:50010
08/10/13 04:53:20 WARN hdfs.DFSClient: Error Recovery for block
blk_-2897952013639714624_1002 in pipeline 67.195.209.61:50010,
67.195.209.109:50010: bad datanode 67.195.209.61:50010
08/10/13 04:53:20 WARN hdfs.DFSClient: DFSOutputStream ResponseProcessor
exception for block blk_-2897952013639714624_1003java.io.IOException:
Connection reset by peer
at sun.nio.ch.FileDispatcher.read0(Native Method)
at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:21)
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:233)
at sun.nio.ch.IOUtil.read(IOUtil.java:206)
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:236)
at
org.apache.hadoop.net.SocketInputStream$Reader.performIO(SocketInputStream.java:55)
at
org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:140)
at
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:150)
at
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:123)
at java.io.DataInputStream.readFully(DataInputStream.java:178)
at java.io.DataInputStream.readLong(DataInputStream.java:399)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$ResponseProcessor.run(DFSClient.java:2307)
08/10/13 04:53:20 WARN hdfs.DFSClient: Error Recovery for block
blk_-2897952013639714624_1003 bad datanode[0] 67.195.209.109:50010
{noformat}
The remaining, good replica was lost.
> Design and Implement a Test Plan to support appends to HDFS files
> -----------------------------------------------------------------
>
> Key: HADOOP-2658
> URL: https://issues.apache.org/jira/browse/HADOOP-2658
> Project: Hadoop Core
> Issue Type: New Feature
> Components: dfs, test
> Reporter: dhruba borthakur
> Assignee: dhruba borthakur
> Priority: Blocker
> Fix For: 0.19.0
>
> Attachments: 20081008testplan.txt, append_testplan.txt,
> AppendTestCase.doc, AppendTestCase.doc
>
>
> HADOOP-1700 describes the design of supporting appends to HDFS files. This
> feature needs extensive testing, especially because the design explicitly
> analyzes many failure scenarios. A detailed test plan and test cases are
> needed to make this feature a reality.
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