/* (non-Javadoc)
* @see org.apache.hadoop.hbase.TableDescriptors#getTableDescriptors(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.fs.Path)
*/
@Override
public Map<String, HTableDescriptor> getAll() throws IOException {
Map<String, HTableDescriptor> htds = new TreeMap<String, HTableDescriptor>();
List<Path> tableDirs = FSUtils.getTableDirs(fs, rootdir);
for (Path d : tableDirs) {
HTableDescriptor htd = null;
try {
htd = get(d.getName());
} catch (FileNotFoundException fnfe) {
// inability of retrieving one HTD shouldn't stop getting the remaining
LOG.warn("Trouble retrieving htd", fnfe);
}
if (htd == null) continue;
htds.put(d.getName(), htd);
}
return htds;
}
/**
* Make sure the hbase temp directory exists and is empty.
* NOTE that this method is only executed once just after the master becomes the active one.
*/
private void checkTempDir(final Path tmpdir, final Configuration c, final FileSystem fs)
throws IOException {
// If the temp directory exists, clear the content (left over, from the previous run)
if (fs.exists(tmpdir)) {
// Archive table in temp, maybe left over from failed deletion,
// if not the cleaner will take care of them.
for (Path tabledir: FSUtils.getTableDirs(fs, tmpdir)) {
for (Path regiondir: FSUtils.getRegionDirs(fs, tabledir)) {
HFileArchiver.archiveRegion(fs, this.rootdir, tabledir, regiondir);
}
}
if (!fs.delete(tmpdir, true)) {
throw new IOException("Unable to clean the temp directory: " + tmpdir);
}
}
// Create the temp directory
if (!fs.mkdirs(tmpdir)) {
throw new IOException("HBase temp directory '" + tmpdir + "' creation failure.");
}
}
