Hi all, In the current test case of hadoop, if we want to corrupt or disable one directory or file, we use File.setWritable(false) such as in TestStorageRestore.java and TestCheckpoint.java.
But we all know, the implementation of function setWritable() in Java API is system-dependent, and there are some jdk bugs in this function implementation. In https://issues.apache.org/jira/browse/HADOOP-4824 , the patch had remove the setWritable() function in 0.18. We can use the Filesystem.setPermission() to change the file's access permission, and it supplies native method which invoke the operating system API in Hadoop source code. So should we change setWritable() to setPermission()? Thanks, Yanbo
