Rui Li created FLINK-15533:
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Summary: 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
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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