| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. The ASF licenses this file to you 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.storm.scheduler; |
| |
| import java.util.Collection; |
| import java.util.Map; |
| |
| public interface ISupervisor { |
| |
| void prepare(Map<String, Object> topoConf, String schedulerLocalDir); |
| |
| // for mesos, this is {hostname}-{topologyid} |
| |
| /** |
| * The id used for writing metadata into ZK. |
| */ |
| String getSupervisorId(); |
| |
| /** |
| * The id used in assignments. This combined with confirmAssigned decides what |
| * this supervisor is responsible for. The combination of this and getSupervisorId |
| * allows Nimbus to assign to a single machine and have multiple supervisors |
| * on that machine execute the assignment. This is important for achieving resource isolation. |
| */ |
| String getAssignmentId(); |
| |
| Object getMetadata(); |
| |
| boolean confirmAssigned(int port); |
| |
| // calls this before actually killing the worker locally... |
| // sends a "task finished" update |
| void killedWorker(int port); |
| |
| void assigned(Collection<Integer> ports); |
| } |