How to use

sendOOB

method

in

org.apache.hadoop.hdfs.server.datanode.BlockReceiver

public void sendOOB() throws IOException, InterruptedException {
 BlockReceiver br = getCurrentBlockReceiver();
 if (br == null) {
  return;
 }
 // This doesn't need to be in a critical section. Althogh the client
 // can resue the connection to issue a different request, trying sending
 // an OOB through the recently closed block receiver is harmless.
 LOG.info("Sending OOB to peer: {}", peer);
 br.sendOOB();
}

public void sendOOB() throws IOException, InterruptedException {
 LOG.info("Sending OOB to peer: " + peer);
 if(blockReceiver!=null)
  blockReceiver.sendOOB();
}

public void sendOOB() throws IOException, InterruptedException {
 LOG.info("Sending OOB to peer: " + peer);
 if(blockReceiver!=null)
  blockReceiver.sendOOB();
}