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https://issues.apache.org/jira/browse/HDFS-1527?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Patrick Kling updated HDFS-1527:
--------------------------------
Attachment: HDFS-1527.patch
This patch uses a regular transfer instead of transferTo if we are on a 32bit
JVM and the block size is >= Integer.MAX_INT. I also re-enables TestLargeBlock
on 32bit.
ant test-patch output:
{code}
[exec] +1 overall.
[exec]
[exec] +1 @author. The patch does not contain any @author tags.
[exec]
[exec] +1 tests included. The patch appears to include 3 new or
modified tests.
[exec]
[exec] +1 javadoc. The javadoc tool did not generate any warning
messages.
[exec]
[exec] +1 javac. The applied patch does not increase the total number
of javac compiler warnings.
[exec]
[exec] +1 findbugs. The patch does not introduce any new Findbugs
(version 1.3.9) warnings.
[exec]
[exec] +1 release audit. The applied patch does not increase the
total number of release audit warnings.
[exec]
[exec] +1 system test framework. The patch passed system test
framework compile.
{code}
> 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: 0.23.0
> Environment: 32 bit JVM
> Reporter: Patrick Kling
> Fix For: 0.23.0
>
> Attachments: 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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