[ 
https://issues.apache.org/jira/browse/FLINK-8656?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16372678#comment-16372678
 ] 

ASF GitHub Bot commented on FLINK-8656:
---------------------------------------

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

    https://github.com/apache/flink/pull/5487#discussion_r169918959
  
    --- Diff: 
flink-runtime/src/main/java/org/apache/flink/runtime/rest/handler/async/AsynchronousOperationInfo.java
 ---
    @@ -0,0 +1,64 @@
    +/*
    + * 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.rest.handler.async;
    +
    +import 
org.apache.flink.runtime.rest.messages.json.SerializedThrowableDeserializer;
    +import 
org.apache.flink.runtime.rest.messages.json.SerializedThrowableSerializer;
    +import org.apache.flink.util.SerializedThrowable;
    +
    +import 
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonInclude;
    +import 
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonProperty;
    +import 
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.annotation.JsonDeserialize;
    +import 
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.annotation.JsonSerialize;
    +
    +import javax.annotation.Nullable;
    +
    +/**
    + * Basic information object for asynchronous operations.
    + */
    +@JsonInclude(JsonInclude.Include.NON_NULL)
    +public class AsynchronousOperationInfo {
    +
    +   private static final String FIELD_NAME_FAILURE_CAUSE = "failure-cause";
    +
    +   @JsonProperty(FIELD_NAME_FAILURE_CAUSE)
    +   @JsonSerialize(using = SerializedThrowableSerializer.class)
    +   @Nullable
    +   private final SerializedThrowable failureCause;
    +
    +   private AsynchronousOperationInfo(
    +           @JsonProperty(FIELD_NAME_FAILURE_CAUSE)
    --- End diff --
    
    nit: indentation


> Add CLI command for rescaling
> -----------------------------
>
>                 Key: FLINK-8656
>                 URL: https://issues.apache.org/jira/browse/FLINK-8656
>             Project: Flink
>          Issue Type: New Feature
>          Components: Client
>    Affects Versions: 1.5.0
>            Reporter: Till Rohrmann
>            Assignee: Till Rohrmann
>            Priority: Major
>              Labels: flip-6
>             Fix For: 1.5.0
>
>
> The REST rescaling calls should be made accessible via the {{CliFrontend}}. 
> In order to do that I propose to add a {{modify}} command to the 
> {{CliFrontend}} to which we can pass a new parallelism.



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