public void testDeleteRegionWithNoStoreFiles() throws Exception {
// get the current store files for the region
List<HRegion> servingRegions = UTIL.getHBaseCluster().getRegions(TABLE_NAME);
// make sure we only have 1 region serving this table
assertEquals(1, servingRegions.size());
HRegion region = servingRegions.get(0);
FileSystem fs = region.getFilesystem();
// make sure there are some files in the regiondir
Path rootDir = FSUtils.getRootDir(fs.getConf());
Path regionDir = HRegion.getRegionDir(rootDir, region.getRegionInfo());
FileStatus[] regionFiles = FSUtils.listStatus(fs, regionDir, null);
Assert.assertNotNull("No files in the region directory", regionFiles);
if (LOG.isDebugEnabled()) {
List<Path> files = new ArrayList<Path>();
for (FileStatus file : regionFiles) {
files.add(file.getPath());
}
LOG.debug("Current files:" + files);
}
// delete the visible folders so we just have hidden files/folders
final PathFilter dirFilter = new FSUtils.DirFilter(fs);
PathFilter nonHidden = new PathFilter() {
@Override
public boolean accept(Path file) {
return dirFilter.accept(file) && !file.getName().toString().startsWith(".");
}
};
FileStatus[] storeDirs = FSUtils.listStatus(fs, regionDir, nonHidden);
for (FileStatus store : storeDirs) {
LOG.debug("Deleting store for test");
fs.delete(store.getPath(), true);
}
// then archive the region
HFileArchiver.archiveRegion(UTIL.getConfiguration(), fs, region.getRegionInfo());
// and check to make sure the region directoy got deleted
assertFalse("Region directory (" + regionDir + "), still exists.", fs.exists(regionDir));
}