[
https://issues.apache.org/jira/browse/HDFS-3398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
amith updated HDFS-3398:
------------------------
Attachment: HDFS-3398.patch
> Client will not retry when primaryDN is down once it's just got pipeline
> ------------------------------------------------------------------------
>
> Key: HDFS-3398
> URL: https://issues.apache.org/jira/browse/HDFS-3398
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs client
> Affects Versions: 2.0.0
> Reporter: Brahma Reddy Battula
> Assignee: amith
> Priority: Minor
> Attachments: HDFS-3398.patch, HDFS-3398.patch
>
>
> Scenario:
> =========
> Start NN and three DN"S
> Get the datanode to which blocks has to be replicated.
> from
> {code}
> nodes = nextBlockOutputStream(src);
> {code}
> Before start writing to the DN ,kill the primary DN.
> {code}
> // write out data to remote datanode
> blockStream.write(buf.array(), buf.position(), buf.remaining());
> blockStream.flush();
> {code}
> Now write will fail with the exception
> {noformat}
> 2012-05-10 14:21:47,993 WARN hdfs.DFSClient (DFSOutputStream.java:run(552))
> - DataStreamer Exception
> java.io.IOException: An established connection was aborted by the software in
> your host machine
> at sun.nio.ch.SocketDispatcher.write0(Native Method)
> at sun.nio.ch.SocketDispatcher.write(Unknown Source)
> at sun.nio.ch.IOUtil.writeFromNativeBuffer(Unknown Source)
> at sun.nio.ch.IOUtil.write(Unknown Source)
> at sun.nio.ch.SocketChannelImpl.write(Unknown Source)
> at
> org.apache.hadoop.net.SocketOutputStream$Writer.performIO(SocketOutputStream.java:60)
> at
> org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:142)
> at
> org.apache.hadoop.net.SocketOutputStream.write(SocketOutputStream.java:151)
> at
> org.apache.hadoop.net.SocketOutputStream.write(SocketOutputStream.java:112)
> at java.io.BufferedOutputStream.write(Unknown Source)
> at java.io.DataOutputStream.write(Unknown Source)
> at
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:513)
> {noformat}
> .
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