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From Vinod Kumar Vavilapalli <vino...@hortonworks.com>
Subject Re: [jira] [Created] (HDFS-4353) Encapsulate connections to peers in Peer and PeerServer classes
Date Fri, 04 Jan 2013 04:35:08 GMT

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Thanks,
+Vinod

On Jan 3, 2013, at 3:38 AM, gschen.fudan wrote:

> hi,
> 
> how could I unsubscribe from this mailing list?
> 
> 
> thank you very much.
> 
> justin
> 
> 于 2013/1/3 19:16, Colin Patrick McCabe (JIRA) 写道:
>> Colin Patrick McCabe created HDFS-4353:
>> ------------------------------------------
>> 
>>              Summary: Encapsulate connections to peers in Peer and PeerServer classes
>>                  Key: HDFS-4353
>>                  URL: https://issues.apache.org/jira/browse/HDFS-4353
>>              Project: Hadoop HDFS
>>           Issue Type: Sub-task
>>           Components: datanode, hdfs-client
>>     Affects Versions: 2.0.3-alpha
>>             Reporter: Colin Patrick McCabe
>>             Assignee: Colin Patrick McCabe
>>          Attachments: 02-cumulative.patch
>> 
>> Encapsulate connections to peers into the {{Peer}} and {{PeerServer}} classes.  Since
many Java classes may be involved with these connections, it makes sense to create a container
for them.  For example, a connection to a peer may have an input stream, output stream, readablebytechannel,
encrypted output stream, and encrypted input stream associated with it.
>> 
>> This makes us less dependent on the {{NetUtils}} methods which use {{instanceof}}
to manipulate socket and stream states based on the runtime type.  it also paves the way to
introduce UNIX domain sockets which don't inherit from {{java.net.Socket}}.
>> 
>> --
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> 
> 


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