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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-4272) Create a JobClient for job control and monitoring
Date Tue, 22 Nov 2016 15:27:58 GMT

    [ https://issues.apache.org/jira/browse/FLINK-4272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15687032#comment-15687032

ASF GitHub Bot commented on FLINK-4272:

Github user mxm commented on a diff in the pull request:

    --- Diff: flink-clients/src/main/java/org/apache/flink/client/program/JobClientEager.java
    @@ -0,0 +1,218 @@
    + * 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.client.program;
    +import org.apache.flink.api.common.JobClient;
    +import org.apache.flink.api.common.JobExecutionResult;
    +import org.apache.flink.api.common.JobID;
    +import org.apache.flink.api.common.accumulators.AccumulatorHelper;
    +import org.apache.flink.runtime.akka.AkkaUtils;
    +import org.apache.flink.runtime.client.JobClientActorUtils;
    +import org.apache.flink.runtime.client.JobClientActor;
    +import org.apache.flink.runtime.client.JobExecutionException;
    +import org.apache.flink.runtime.client.JobListeningContext;
    +import org.apache.flink.runtime.instance.ActorGateway;
    +import org.apache.flink.runtime.messages.JobManagerMessages;
    +import org.apache.flink.runtime.messages.accumulators.AccumulatorResultsErroneous;
    +import org.apache.flink.runtime.messages.accumulators.AccumulatorResultsFound;
    +import org.apache.flink.runtime.messages.accumulators.RequestAccumulatorResults;
    +import org.apache.flink.util.SerializedValue;
    +import org.slf4j.Logger;
    +import org.slf4j.LoggerFactory;
    +import scala.concurrent.Await;
    +import scala.concurrent.Future;
    +import java.util.LinkedList;
    +import java.util.List;
    +import java.util.Map;
    + * A client to interact with a running Flink job.
    + */
    +public class JobClientEager implements JobClient {
    +	private final Logger LOG = LoggerFactory.getLogger(getClass());
    --- End diff --

> Create a JobClient for job control and monitoring 
> --------------------------------------------------
>                 Key: FLINK-4272
>                 URL: https://issues.apache.org/jira/browse/FLINK-4272
>             Project: Flink
>          Issue Type: New Feature
>          Components: Client
>            Reporter: Maximilian Michels
>            Assignee: Maximilian Michels
>            Priority: Minor
>             Fix For: 1.2.0
> The aim of this new features is to expose a client to the user which allows to cancel
a running job, retrieve accumulators for a running job, or perform other actions in the future.
Let's call it {{JobClient}} for now (although this clashes with the existing JobClient class
which could be renamed to JobClientActorUtils instead).
> The new client should be returned from the {{ClusterClient}} class upon job submission.
The client should also be instantiatable by the users to retrieve the JobClient with a JobID.
> We should expose the new JobClient to the Java and Scala APIs using a new method on the
{{ExecutionEnvironment}} / {{StreamExecutionEnvironment}} called {{executeWithControl()}}
(perhaps we can find a better name).

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