private void removeResultDirs(List<Path> resultDirPaths, HiveConf conf) throws IOException {
    for (Path path : resultDirPaths) {
      LOG.info("Compaction failed, removing directory: " + path.toString());
      Util.cleanupEmptyDir(conf, path);
    }
  }
Call in case compaction failed. Removes the new empty compacted delta/base.
Cleaner would handle this later but clean up now just in case.
ql/src/java/org/apache/hadoop/hive/ql/txn/compactor/QueryCompactor.java