Re: object Writable and Serialization

2010-12-10 Thread Ted Yu
Old bits: Can you try adding 'org.apache.hadoop.io. serializer.JavaSerialization,' to the following config ? "C:\hadoop-0.20.2\src\core\core-default.xml"(87,9): io.serializations By default, only org.apache.hadoop.io.serializer.WritableSerialization is included. On Fri, Dec 10, 2010 at 7:22 A

object Writable and Serialization

2010-12-10 Thread psdc1978
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