Hadoop dir/file last modification times

Question

Is there a way to get the last modified times of all dirs and files in hdfs? I want to create page that displays the information, but I have no clue how to go about getting the

Answer 1

You probably have to iterate through the files and directories, to get the status of each path - you can use the below code (just sample) - but I'm not sure, how efficient that would be, if you have large set of files and directories.

Configuration conf = new Configuration();
conf.set("fs.default.name", "hdfs://");
conf.set("mapred.job.tracker", ":");
conf.setBoolean("fs.hdfs.impl.disable.cache", true);

FileSystem lfs = FileSystem.get(l_configuration);
fs.getFileStatus(new Path("/your/path")).getModificationTime();