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https://issues.apache.org/jira/browse/HADOOP-3678?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Raghu Angadi updated HADOOP-3678:
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    Description: When a client reads data using read(), it closes the sockets 
after it is done. Often it might not read till the end of a block. The datanode 
on the other side keeps writing data until the client connection is closed or 
end of the block is reached. If the client does not read till the end of the 
block, Datanode writes an error message and stack trace to the datanode log. It 
should not. This is not an error and it just pollutes the log and confuses the 
user.  (was: 
When a client reads data using read(), it closes the sockets after it is done. 
Often it might read till the end of a block. The datanode on the other side 
keeps writing data until the client connection is closed of end of the block is 
reached. If the client does not read till the end of the block, Datanode writes 
an error message and stack trace to the datanode log. It should not. This is 
not an error and it just pollutes the log and confuses the user.)

> Avoid spurious "DataXceiver: java.io.IOException: Connection reset by peer" 
> errors in DataNode log
> --------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-3678
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3678
>             Project: Hadoop Core
>          Issue Type: Bug
>    Affects Versions: 0.17.0
>            Reporter: Raghu Angadi
>            Assignee: Raghu Angadi
>
> When a client reads data using read(), it closes the sockets after it is 
> done. Often it might not read till the end of a block. The datanode on the 
> other side keeps writing data until the client connection is closed or end of 
> the block is reached. If the client does not read till the end of the block, 
> Datanode writes an error message and stack trace to the datanode log. It 
> should not. This is not an error and it just pollutes the log and confuses 
> the user.

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