FAQ
For example, the protocol between the client and the namenode? the protocol
between client and datanode for transfer?

I googled, but no finding.

thanks

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  • Thanh Do at Apr 8, 2010 at 10:46 am
    check it out at:

    org.apache.hadoop.hdfs.protocol.ClientProtocol;
    On Thu, Apr 8, 2010 at 2:47 AM, Chen Bangzhong wrote:

    For example, the protocol between the client and the namenode? the protocol
    between client and datanode for transfer?

    I googled, but no finding.

    thanks


    --
    thanh
  • Jitendra Nath Pandey at Apr 8, 2010 at 5:13 pm
    Checkout the interfaces that different services implement.
    For example Namenode implements ClientProtocol, DatanodeProtocol and a few
    more.
    All these protocols should have javadoc telling about their purpose.

    Data transfer between client and datanode is not over RPC protocol, rather
    client sets up a socket connection and streams the data.

    On 4/8/10 12:47 AM, "Chen Bangzhong" wrote:

    For example, the protocol between the client and the namenode? the protocol
    between client and datanode for transfer?

    I googled, but no finding.

    thanks

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