Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/2765#discussion_r31429608
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/dstream/FileInputDStream.scala
---
@@ -223,6 +266,11 @@ class FileInputDStream[K, V, F <: NewInputFormat[K,V]](
*/
private def isNewFile(path: Path, currentTime: Long,
modTimeIgnoreThreshold: Long): Boolean = {
val pathStr = path.toString
+ // Reject file if it start with _
+ if (path.getName().startsWith("_")) {
--- End diff --
Could you add this filter to `FileInputDStream.defaultFilter`?
@tdas is it a bug that `FileInputDStream.defaultFilter` only ignores files
that start with `.`? Hadoop uses the following path filter
(FileInputFormat.hiddenFileFilter):
```Java
private static final PathFilter hiddenFileFilter = new PathFilter() {
public boolean accept(Path p) {
String name = p.getName();
return !name.startsWith("_") && !name.startsWith(".");
}
};
```
Since SparkContext.textFile uses `TextInputFormat`, it uses this filter and
ignores files that start with "-" or ".". Should Streaming be consistent with
Core?
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