Hi, > Can anyone tell me the purpose of sockets used in hadoop. I mean > for which purpose hadoop uses sockets? are they used by tasktracker and > jobtrackers ? or used by namenode and datanode ?
All communication between Hadoop masters (JobTracker, NameNode), slaves (TaskTracker, DataNode) and clients happens using a custom RPC built over sockets. > > Secondly, if hadoop has to use sockets does it uses the socket factory > classes given in org/apache/hadoop/net directory? Yes Thanks hemanth
