public long unblockRequestOnShard(String shardId){
  CountDownLatch lock=shardLocks.remove(shardId);
  if (lock != null) {
    long count=lock.getCount();
    lock.countDown();
    trace("[{}] Request unblocked on shardId={}",gondola.getHostId(),shardId);
    return count;
  }
  return 0;
}

public long unblockRequestOnShard ( String shardId ) { CountDownLatch lock = shardLocks . remove ( shardId ) ; if ( lock != null ) { long count = lock . getCount ( ) ; lock . countDown ( ) ; trace ( "[{}] Request unblocked on shardId={}" , gondola . getHostId ( ) , shardId ) ; return count ; } return 0 ; }
unblock request on shard long .
