[HDFS-3398] Client will not retry when primaryDN is down once it's just got pipeline

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.0-alpha
• Fix Version/s: 2.0.2-alpha
• Component/s: hdfs-client
• Target Version/s: 2.0.0-alpha
• Hadoop Flags: Reviewed
• Assignee: amith
• Reporter: Brahma Reddy Battula
• Created: 10/May/12 14:56
• Updated: 04/Sep/14 00:59
• Resolved: 29/May/12 19:45

Description

Scenario:
=========
Start NN and three DN"S

Get the datanode to which blocks has to be replicated.
from

nodes = nextBlockOutputStream(src);

Before start writing to the DN ,kill the primary DN.

// write out data to remote datanode
          blockStream.write(buf.array(), buf.position(), buf.remaining());
          blockStream.flush();

Now write will fail with the exception

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)

.