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https://issues.apache.org/jira/browse/HDFS-1527?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13022465#comment-13022465
]
Hudson commented on HDFS-1527:
------------------------------
Integrated in Hadoop-Hdfs-trunk #643 (See
[https://builds.apache.org/hudson/job/Hadoop-Hdfs-trunk/643/])
> SocketOutputStream.transferToFully fails for blocks >= 2GB on 32 bit JVM
> ------------------------------------------------------------------------
>
> Key: HDFS-1527
> URL: https://issues.apache.org/jira/browse/HDFS-1527
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: data-node
> Affects Versions: 0.22.0
> Environment: 32 bit JVM
> Reporter: Patrick Kling
> Assignee: Patrick Kling
> Fix For: 0.22.0
>
> Attachments: HDFS-1527.2.patch, HDFS-1527.patch
>
>
> On 32 bit JVM, SocketOutputStream.transferToFully() fails if the block size
> is >= 2GB. We should fall back to a normal transfer in this case.
> {code}
> 2010-12-02 19:04:23,490 ERROR datanode.DataNode
> (BlockSender.java:sendChunks(399)) - BlockSender.sendChunks() exception:
> java.io.IOException: Value too large
> for defined data type
> at sun.nio.ch.FileChannelImpl.transferTo0(Native Method)
> at
> sun.nio.ch.FileChannelImpl.transferToDirectly(FileChannelImpl.java:418)
> at sun.nio.ch.FileChannelImpl.transferTo(FileChannelImpl.java:519)
> at
> org.apache.hadoop.net.SocketOutputStream.transferToFully(SocketOutputStream.java:204)
> at
> org.apache.hadoop.hdfs.server.datanode.BlockSender.sendChunks(BlockSender.java:386)
> at
> org.apache.hadoop.hdfs.server.datanode.BlockSender.sendBlock(BlockSender.java:475)
> at
> org.apache.hadoop.hdfs.server.datanode.DataXceiver.opReadBlock(DataXceiver.java:196)
> at
> org.apache.hadoop.hdfs.protocol.DataTransferProtocol$Receiver.opReadBlock(DataTransferProtocol.java:356)
> at
> org.apache.hadoop.hdfs.protocol.DataTransferProtocol$Receiver.processOp(DataTransferProtocol.java:328)
> at
> org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:130)
> at java.lang.Thread.run(Thread.java:619)
> {code}
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