Brahma Reddy Battula created HDFS-3398:
------------------------------------------
Summary: 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: Task
Affects Versions: 2.0.0
Reporter: Brahma Reddy Battula
Priority: Minor
Fix For: 3.0.0
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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