private LockRequest createLockRequest(CompactionInfo ci) {
    return CompactorUtil.createLockRequest(conf, ci, 0, LockType.EXCL_WRITE, DataOperationType.DELETE);
  }
A compaction based implementation of TaskHandler.
Provides implementation of creation of compaction clean tasks.
ql/src/java/org/apache/hadoop/hive/ql/txn/compactor/handler/CompactionCleaner.java