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MapReduce, mail # user - Why SSH


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Re: Why SSH
rab ra 2013-11-11, 16:37
Thanks for d response. It helps. :-)
On 11 Nov 2013 14:04, "unmesha sreeveni" <[EMAIL PROTECTED]> wrote:

> I guess it is  TCP .
>
> The server is DataXceiverServer<http://www.grepcode.com/file/repository.cloudera.com/content/repositories/releases/org.apache.hadoop/hadoop-hdfs/2.0.0-cdh4.3.0/org/apache/hadoop/hdfs/server/datanode/DataXceiverServer.java?av=f> and
> the client is DFSClient<http://www.grepcode.com/file/repository.cloudera.com/content/repositories/releases/org.apache.hadoop/hadoop-hdfs/2.0.0-cdh4.3.0/org/apache/hadoop/hdfs/DFSClient.java#DFSClient>.
> Basiclly, they use the Java Socket API.
>
> DataXceiverServer<http://www.grepcode.com/file/repository.cloudera.com/content/repositories/releases/org.apache.hadoop/hadoop-hdfs/2.0.0-cdh4.3.0/org/apache/hadoop/hdfs/server/datanode/DataXceiverServer.java?av=f>
> :
> http://www.grepcode.com/file/repository.cloudera.com/content/repositories/releases/org.apache.hadoop/hadoop-hdfs/2.0.0-cdh4.3.0/org/apache/hadoop/hdfs/server/datanode/DataXceiverServer.java?av=f
>
>
>
> On Mon, Nov 11, 2013 at 12:11 PM, Harsh J <[EMAIL PROTECTED]> wrote:
>
>> Neither of those. We stream data directly over a TCP network socket.
>>
>> Please read http://wiki.apache.org/hadoop/FAQ#Does_Hadoop_require_SSH.3F
>> regarding your SSH confusion.
>>
>> On Mon, Nov 11, 2013 at 10:21 AM, rab ra <[EMAIL PROTECTED]> wrote:
>> > Hello
>> >
>> > I have a question. To transfer the files to datanodes what protocol
>> hadoop
>> > uses? SSH or http or https
>>
>>
>>
>> --
>> Harsh J
>>
>
>
>
> --
> *Thanks & Regards*
>
> Unmesha Sreeveni U.B
>
> *Junior Developer*
>
> *Amrita Center For Cyber Security *
>
>
> * Amritapuri.www.amrita.edu/cyber/ <http://www.amrita.edu/cyber/>*
>