Hi, Jay, Thanks for reply. I can see "TestBlockRecovery" and "TestDataDirs" for datanode; also "TestGetImageServlet","TestINodeFile" and "TestNNLeaseRecovery" for namenode. I will start from these first then. Thanks.
Best Regards, Min (Catherine) Long IBM China Systems and Technology Lab Jay Booth <jaybo...@gmail.com> 09/14/2010 09:59 AM Please respond to hdfs-dev@hadoop.apache.org To hdfs-dev@hadoop.apache.org cc Subject Re: I am a new comer and have a question about HDFS code check out Hi Min, look at the unit tests which make use of MiniDFSCluster -- you can run those in debug mode and step through the code, and they include a bunch of use cases. That's generally much easier than running all of the different services and debugging each separately.
