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https://issues.apache.org/jira/browse/BEAM-4861?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jozef Vilcek updated BEAM-4861:
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Description:
Hi,
beam Filesystem operations copy, rename and delete are void in SDK. Hadoop
native filesystem operations are not and returns void. Current implementation
in Beam ignores the result and pass as long as exception is not thrown.
I got burned by this when using 'rename' to do a 'move' operation on HDFS. If
target directory does not exists, operations returns false and do not touch the
file.
[https://github.com/apache/beam/blob/master/sdks/java/io/hadoop-file-system/src/main/java/org/apache/beam/sdk/io/hdfs/HadoopFileSystem.java#L148]
was:
Hi,
beam Filesystem operations copy, rename and delete are void in SDK. Hadoop
native filesystem operations are not and returns void. Current implementation
in Beam ignores the result and pass as long as exception is not thrown.
My question is, if this is by design or a bug?
I got burned by this when using 'rename' to do a 'move' operation on HDFS. If
target directory does not exists, operations returns false and do not touch the
file.
https://github.com/apache/beam/blob/master/sdks/java/io/hadoop-file-system/src/main/java/org/apache/beam/sdk/io/hdfs/HadoopFileSystem.java#L148
> Hadoop Filesystem silently fails
> --------------------------------
>
> Key: BEAM-4861
> URL: https://issues.apache.org/jira/browse/BEAM-4861
> Project: Beam
> Issue Type: Bug
> Components: io-java-hadoop
> Reporter: Jozef Vilcek
> Assignee: Chamikara Jayalath
> Priority: Major
>
> Hi,
> beam Filesystem operations copy, rename and delete are void in SDK. Hadoop
> native filesystem operations are not and returns void. Current implementation
> in Beam ignores the result and pass as long as exception is not thrown.
> I got burned by this when using 'rename' to do a 'move' operation on HDFS. If
> target directory does not exists, operations returns false and do not touch
> the file.
> [https://github.com/apache/beam/blob/master/sdks/java/io/hadoop-file-system/src/main/java/org/apache/beam/sdk/io/hdfs/HadoopFileSystem.java#L148]
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