Hi everyone, I'm currently working on an application that requires some important details about the DataNode registration (w/ NameNode) procedure.
Specifically, I have understood (after Wireshark-ing and looking through the Hadoop code) that the DataNode is registered with the NameNode using a single packet which tells the NameNode where the DataNode is "located" (i.e. host and port). However, in this packet, I'm not clear as to what scheme is used to serialize the DataNode information. I am running Hadoop 1.2.1. Any information will be appreciated. Thank you, Dhaivat Pandya