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https://issues.apache.org/jira/browse/FLINK-15533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17011530#comment-17011530
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Rui Li commented on FLINK-15533:
--------------------------------
[~lzljs3620320] Thanks for the suggestions. Yes it can be reproduced with
simpler pure DataStream job. I'll update the description.
> 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
> 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);
> EnvironmentSettings settings =
>
> EnvironmentSettings.newInstance().useBlinkPlanner().inStreamingMode().build();
> TableConfig tableConfig = new TableConfig();
> StreamTableEnvironment tableEnv =
> StreamTableEnvironmentImpl.create(streamEnv, settings,
> tableConfig);
> tableEnv
> .connect(new FileSystem().path("file:///path/to/csv"))
> .withSchema(new Schema().field("f1", DataTypes.INT()).field("f2",
> DataTypes.INT()))
> .withFormat(new OldCsv().fieldDelimiter(","))
> .registerTableSource("src");
> DataStream dataStream = tableEnv.toAppendStream(tableEnv.from("src"),
> Row.class);
> 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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