Github user sachingoel0101 commented on the pull request:
https://github.com/apache/flink/pull/1214#issuecomment-155717073
@mxm , fortunately, this time I was able to run the tests on my machine. :)
I'm seeing a strange error. This is the error in Task manager log file for
per job detached streaming test:
```java
java.io.IOException: File or directory already exists. Existing files and
directories are not overwritten in NO_OVERWRITE mode. Use OVERWRITE mode to
overwrite existing files and directories.
at
org.apache.flink.core.fs.FileSystem.initOutPathLocalFS(FileSystem.java:549)
at
org.apache.flink.api.common.io.FileOutputFormat.open(FileOutputFormat.java:226)
at
org.apache.flink.api.java.io.TextOutputFormat.open(TextOutputFormat.java:77)
at
org.apache.flink.streaming.api.functions.sink.FileSinkFunction.open(FileSinkFunction.java:62)
at
org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:36)
at
org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.open(AbstractUdfStreamOperator.java:89)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.openAllOperators(StreamTask.java:286)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:213)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:584)
at java.lang.Thread.run(Thread.java:745)
```
This is surprising because I have made no changes to the way file writes or
overwrites are handled.
Here's the thing though: it should fail, because the folder is created at
line 475 in `YarnSessionFIFOITCase` and the program will need to overwrite it.
```java
File tmpOutFolder = null;
try{
tmpOutFolder = tmp.newFolder();
}
catch(IOException e) {
throw new RuntimeException(e);
}
```
But the tests always pass on the master branch.
The rest of the tests which follow this automatically fail because they
again check all the logs files for exception strings.
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