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https://issues.apache.org/jira/browse/FLINK-5815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15885735#comment-15885735
 ] 

ASF GitHub Bot commented on FLINK-5815:
---------------------------------------

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

    https://github.com/apache/flink/pull/3388#discussion_r103177702
  
    --- Diff: 
flink-fs-tests/src/test/java/org/apache/flink/hdfstests/FileUtilsTest.java ---
    @@ -0,0 +1,117 @@
    +/*
    + * 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.hdfstests;
    +
    +import org.apache.flink.core.fs.FSDataInputStream;
    +import org.apache.flink.core.fs.FSDataOutputStream;
    +import org.apache.flink.core.fs.FileSystem;
    +import org.apache.flink.core.fs.Path;
    +import org.apache.flink.test.util.AbstractTestBase;
    +import org.apache.flink.util.FileUtils;
    +import org.apache.hadoop.conf.Configuration;
    +import org.apache.hadoop.hdfs.MiniDFSCluster;
    +import org.junit.*;
    +import org.junit.rules.TemporaryFolder;
    +
    +import java.io.File;
    +import java.io.IOException;
    +import java.net.URI;
    +
    +import static org.junit.Assert.fail;
    +
    +/**
    + * Created by wenlong.lwl on 2017/2/21.
    --- End diff --
    
    We don't do these comments.


> Add resource files configuration for Yarn Mode
> ----------------------------------------------
>
>                 Key: FLINK-5815
>                 URL: https://issues.apache.org/jira/browse/FLINK-5815
>             Project: Flink
>          Issue Type: Improvement
>          Components: Client, YARN
>    Affects Versions: 1.3.0
>            Reporter: Wenlong Lyu
>            Assignee: Wenlong Lyu
>
> Currently in flink, when we want to setup a resource file to distributed 
> cache, we need to make the file accessible remotely by a url, which is often 
> difficult to maintain a service like that. What's more, when we want do add 
> some extra jar files to job classpath, we need to copy the jar files to blob 
> server when submitting the jobgraph. In yarn, especially in flip-6, the blob 
> server is not running yet when we try to start a flink job. 
> Yarn has a efficient distributed cache implementation for application running 
> on it, what's more we can be easily share the files stored in hdfs in 
> different application by distributed cache without extra IO operations. 
> I suggest to introduce -yfiles, -ylibjars -yarchives options to FlinkYarnCLI 
> to enable yarn user setup their job resource files by yarn distributed cache. 
> The options is compatible with what is used in mapreduce, which make it easy 
> to use for yarn user who generally has experience on using mapreduce.



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