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https://issues.apache.org/jira/browse/BEAM-2277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16587202#comment-16587202
 ] 

Jozef Vilcek commented on BEAM-2277:
------------------------------------

Is anyone have this problem if it is using HDFS paths in form with vs without 
authority? *hdfs:///path/to/dir*    vs   *hdfs://ha-nn/path/to/dir* ?


I suspect the problem could be drop empty authority here:

[https://github.com/apache/beam/blob/master/sdks/java/io/hadoop-file-system/src/main/java/org/apache/beam/sdk/io/hdfs/HadoopFileSystem.java#L260]

Which does for
{code:java}
FileSystems.matchNewResource("hdfs:///path/to/dir", false)
{code}
produce

 

 
{code:java}
hdfs:/path/to/dir
{code}
Reading back such path via  FileSystems.matchNewResource()  produce a 
ResourceId with "file" schema because of the chance in BEAM-5180

 

> IllegalArgumentException when using Hadoop file system for WordCount example.
> -----------------------------------------------------------------------------
>
>                 Key: BEAM-2277
>                 URL: https://issues.apache.org/jira/browse/BEAM-2277
>             Project: Beam
>          Issue Type: Bug
>          Components: z-do-not-use-sdk-java-extensions
>    Affects Versions: 2.6.0
>            Reporter: Aviem Zur
>            Assignee: Aviem Zur
>            Priority: Blocker
>             Fix For: 2.0.0
>
>
> IllegalArgumentException when using Hadoop file system for WordCount example.
> Occurred when running WordCount example using Spark runner on a YARN cluster.
> Command-line arguments:
> {code:none}
> --runner=SparkRunner --inputFile=hdfs:///user/myuser/kinglear.txt 
> --output=hdfs:///user/myuser/wc/wc
> {code}
> Stack trace:
> {code:none}
> java.lang.IllegalArgumentException: Expect srcResourceIds and destResourceIds 
> have the same scheme, but received file, hdfs.
>       at 
> org.apache.beam.sdk.repackaged.com.google.common.base.Preconditions.checkArgument(Preconditions.java:122)
>       at 
> org.apache.beam.sdk.io.FileSystems.validateSrcDestLists(FileSystems.java:394)
>       at org.apache.beam.sdk.io.FileSystems.copy(FileSystems.java:236)
>       at 
> org.apache.beam.sdk.io.FileBasedSink$WriteOperation.copyToOutputFiles(FileBasedSink.java:626)
>       at 
> org.apache.beam.sdk.io.FileBasedSink$WriteOperation.finalize(FileBasedSink.java:516)
>       at 
> org.apache.beam.sdk.io.WriteFiles$2.processElement(WriteFiles.java:592)
> {code}



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