Hi,
I know that Hadoop MR don't use the java object Serialization and use
instead the object Writable, and I understand the reasons that the Hadoop
MR team chose that.
I was doing my modifications to the Hadoop MR, and I was trying to transfer
my own object via RPC method call between the TT and the JT.
Here's my object:
[code]
// please notice that I use Serializable instead of Writable
// and I don't implement the method readFields and write neither.
public class MyObj implements Serializable {
...
}
[/code]
As consequence this object isn't transfered between the TT and the JT.
Why it isn't transfered? Despite of Hadoop MR don't use java object
Serialization, this is a feature that belongs to the Java framework.
Thanks,
PSC