@Override
    public void releaseLock(final MasterProcedureEnv env) {
      env.getProcedureScheduler().wakeNamespaceExclusiveLock(LockProcedure.this, namespace);
    }
On recovery, re-execute from start to acquire the locks. Need to explicitly set it to RUNNABLE
because the procedure might have been in WAITING_TIMEOUT state when crash happened. In which
case, it'll be sent back to timeout queue on recovery, which we don't want since we want to
require locks.
hbase-server/src/main/java/org/apache/hadoop/hbase/master/locking/LockProcedure.java