Hi,
I am a newbie of hadoop.
Today I was struggling with a hadoop problem for several hours.
I initialize a parameter by setting job configuration in main.
E.g. Configuration con = new Configuration();
con.set("test", "1");
Job job = new Job(con);
Then in the mapper class, I want to set "test" to "2". I did it by
context.getConfiguration().set("test","2");
Finally in the main method, after the job is finished, I check the
"test" again by
job.getConfiguration().get("test");
However, the value of "test" is still "1".
The reason why I want to change the parameter inside Mapper class is
that I want to determine when to stop an iteration in the main method.
For example, for doing breadth-first search, when there is no new nodes
are added for further expansion, the searching iteration should stop.
Your help will be deeply appreciated. Thank you
Wei
