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From tillrohrmann <...@git.apache.org>
Subject [GitHub] flink pull request #4260: [FLINK-7103] [dispatcher] Add skeletal structure o...
Date Thu, 06 Jul 2017 12:06:07 GMT
Github user tillrohrmann commented on a diff in the pull request:

    --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/dispatcher/Dispatcher.java
    @@ -0,0 +1,296 @@
    + * 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.flink.runtime.dispatcher;
    +import org.apache.flink.api.common.JobExecutionResult;
    +import org.apache.flink.api.common.JobID;
    +import org.apache.flink.configuration.Configuration;
    +import org.apache.flink.runtime.blob.BlobServer;
    +import org.apache.flink.runtime.blob.BlobService;
    +import org.apache.flink.runtime.client.JobSubmissionException;
    +import org.apache.flink.runtime.clusterframework.types.ResourceID;
    +import org.apache.flink.runtime.heartbeat.HeartbeatServices;
    +import org.apache.flink.runtime.highavailability.HighAvailabilityServices;
    +import org.apache.flink.runtime.highavailability.RunningJobsRegistry;
    +import org.apache.flink.runtime.jobgraph.JobGraph;
    +import org.apache.flink.runtime.jobmanager.OnCompletionActions;
    +import org.apache.flink.runtime.jobmanager.SubmittedJobGraph;
    +import org.apache.flink.runtime.jobmanager.SubmittedJobGraphStore;
    +import org.apache.flink.runtime.jobmaster.JobManagerRunner;
    +import org.apache.flink.runtime.messages.Acknowledge;
    +import org.apache.flink.runtime.metrics.MetricRegistry;
    +import org.apache.flink.runtime.rpc.FatalErrorHandler;
    +import org.apache.flink.runtime.rpc.RpcEndpoint;
    +import org.apache.flink.runtime.rpc.RpcMethod;
    +import org.apache.flink.runtime.rpc.RpcService;
    +import org.apache.flink.util.ExceptionUtils;
    +import org.apache.flink.util.FlinkException;
    +import org.apache.flink.util.Preconditions;
    +import org.slf4j.Logger;
    +import org.slf4j.LoggerFactory;
    +import java.io.IOException;
    +import java.util.Collection;
    +import java.util.Collections;
    +import java.util.HashMap;
    +import java.util.Map;
    + * Base class for the Dispatcher component. The Dispatcher component is responsible
    + * for receiving job submissions, persisting them, spawning JobManagers to execute
    + * the jobs and to recover them in case of a master failure. Furthermore, it knows
    + * about the state of the Flink session cluster.
    + */
    +public abstract class Dispatcher extends RpcEndpoint<DispatcherGateway> {
    +	protected static final Logger LOG = LoggerFactory.getLogger(Dispatcher.class);
    --- End diff --
    True good point. Will remove it.

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