@InterfaceAudience.Private
  LockHeartbeatWorker getWorker() {
    return worker;
  }
Abortable.abort() is called when the lease of the lock will expire. It's up to the user decide
if simply abort the process or handle the loss of the lock by aborting the operation that was
supposed to be under lock.
hbase-server/src/main/java/org/apache/hadoop/hbase/client/locking/EntityLock.java