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https://issues.apache.org/jira/browse/FLINK-15533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17011623#comment-17011623
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Kostas Kloudas commented on FLINK-15533:
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Thanks for reporting this [~lirui] and also thanks for digging into it. I agree
that this seems to be the problem and it should be fixed.
My first thought is that the
{{consolidateParallelismDefinitionsInConfiguration}} should change to be {{if
(config.getParallelism() == ExecutionConfig.PARALLELISM_DEFAULT)}} and it
should be called from within the {{getParallelism()}} so that we have a
consistent view across the whole codebase.
Another thing that I would like to point is also that this
[check|https://github.com/kl0u/flink/blob/master/flink-core/src/main/java/org/apache/flink/api/common/io/FileOutputFormat.java#L223]
seems a bit weird to me. I would suggest that no matter what the parallelism
is, the behaviour should be the same, i.e. always create a directory.
What do you think?
> Writing DataStream as text file fails due to output path already exists
> -----------------------------------------------------------------------
>
> Key: FLINK-15533
> URL: https://issues.apache.org/jira/browse/FLINK-15533
> Project: Flink
> Issue Type: Bug
> Components: Client / Job Submission
> Affects Versions: 1.10.0
> Reporter: Rui Li
> Priority: Major
>
> The following program reproduces the issue.
> {code}
> Configuration configuration = GlobalConfiguration.loadConfiguration();
> configuration.set(DeploymentOptions.TARGET, RemoteExecutor.NAME);
> StreamExecutionEnvironment streamEnv = new
> StreamExecutionEnvironment(configuration);
> DataStream dataStream = streamEnv.fromCollection(Arrays.asList(1,2,3));
> dataStream.writeAsText("hdfs://localhost:8020/tmp/output");
> streamEnv.execute();
> {code}
> The job will fail with the follow error, even though the output path doesn't
> exist before job submission:
> {noformat}
> org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.fs.FileAlreadyExistsException):
> /tmp/output already exists as a directory
> {noformat}
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