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https://issues.apache.org/jira/browse/FLINK-9793?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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linzhongjun updated FLINK-9793:
-------------------------------
    Description: 
We are using flink1.4.2 in our company. When the flink job is submitted to run 
on yarn with yarn-cluster mode,we actually find that the 
flink-dist_2.11-1.4.2.jar is uploaded to HDFS. The jars lies in different 
directories e.g.,

1..flink/application_1525941455002_539197/flink-dist_2.11-1.4.2.jar

2..flink/application_1525941455002_539197/lib/flink-dist_2.11-1.4.2.jar

Through reviewing source code of flink and having some tests, we suppose that 
the code below may have a bug in the Linux environment.
 

java.nio.file.Path file
!(file.getFileName().startsWith("flink-dist") 
&&file.getFileName().endsWith("jar")) is Always be true

  was:
Our company is using flink1.4.2,When the flink program is submitted to run on 
yarn,To a yarn - cluster mode,We found that the flink-dist_2.11-1.4.2.jar was 
repeatedly uploaded to HDFS,They are in different directories eg;

1..flink/application_1525941455002_539197/flink-dist_2.11-1.4.2.jar

2..flink/application_1525941455002_539197/lib/flink-dist_2.11-1.4.2.jar

Through source code analysis and testing, we found that this code has bugs in 
the Linux environment。
  

java.nio.file.Path file
!(file.getFileName().startsWith("flink-dist") 
&&file.getFileName().endsWith("jar"))  is Always be true

        Summary: When submitting a flink job with yarn-cluster, flink-dist*.jar 
is repeatedly uploaded  (was: When flink on yarn is submitted with 
yarn-cluster, flink-dist*. Jar is repeatedly uploaded)

> When submitting a flink job with yarn-cluster, flink-dist*.jar is repeatedly 
> uploaded
> -------------------------------------------------------------------------------------
>
>                 Key: FLINK-9793
>                 URL: https://issues.apache.org/jira/browse/FLINK-9793
>             Project: Flink
>          Issue Type: Improvement
>          Components: YARN
>    Affects Versions: 1.4.2
>            Reporter: linzhongjun
>            Assignee: linzhongjun
>            Priority: Minor
>              Labels: patch
>         Attachments: 20180710224808.png, 20180710224848.png, 
> 20180710231518.png
>
>
> We are using flink1.4.2 in our company. When the flink job is submitted to 
> run on yarn with yarn-cluster mode,we actually find that the 
> flink-dist_2.11-1.4.2.jar is uploaded to HDFS. The jars lies in different 
> directories e.g.,
> 1..flink/application_1525941455002_539197/flink-dist_2.11-1.4.2.jar
> 2..flink/application_1525941455002_539197/lib/flink-dist_2.11-1.4.2.jar
> Through reviewing source code of flink and having some tests, we suppose that 
> the code below may have a bug in the Linux environment.
>  
> java.nio.file.Path file
> !(file.getFileName().startsWith("flink-dist") 
> &&file.getFileName().endsWith("jar")) is Always be true



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