/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hive.llap.protocol;
import org.apache.hadoop.io.ArrayWritable;
import java.io.IOException;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.ipc.VersionedProtocol;
import org.apache.hadoop.security.token.TokenInfo;
import org.apache.tez.dag.api.TezException;
import org.apache.tez.dag.records.TezTaskAttemptID;
import org.apache.tez.runtime.api.impl.TezHeartbeatRequest;
import org.apache.tez.runtime.api.impl.TezHeartbeatResponse;
import org.apache.tez.runtime.common.security.JobTokenSelector;
@TokenInfo(JobTokenSelector.class)
public interface LlapTaskUmbilicalProtocol extends VersionedProtocol {
// Why are we still using writables in 2017?
public class TezAttemptArray extends ArrayWritable {
public TezAttemptArray() {
super(TezTaskAttemptID.class);
}
}
public static final long versionID = 1L;
// From Tez. Eventually changes over to the LLAP protocol and ProtocolBuffers
boolean canCommit(TezTaskAttemptID taskid) throws IOException;
public TezHeartbeatResponse heartbeat(TezHeartbeatRequest request)
throws IOException, TezException;
public void nodeHeartbeat(
Text hostname, Text uniqueId, int port, TezAttemptArray aw) throws IOException;
public void taskKilled(TezTaskAttemptID taskAttemptId) throws IOException;
}