Hi DuanYu!
Most likely, the MapTask class loaded is not from your jar file. Here's a
look at how Oracle JAVA loads classes :
http://docs.oracle.com/javase/8/docs/technotes/tools/findingclasses.html .
Check the classpath that your MapTask is started with.
HTH
Ravi
On Fri, Aug 4, 2017 at 7:09
.apache.org" <user@hadoop.apache.org>
Subject: modify the MapTask.java but no change
Hi,
I modify the MapTask.java file in order to output more log information. I
re-compile the file and deploy the jar to the whole clusters, but I found that
the output log has not changed, I don't know why.
Hi,
I modify the MapTask.java file in order to output more log information. I
re-compile the file and deploy the jar to the whole clusters, but I found
that the output log has not changed, I don't know why.
