Github user nickwallen commented on a diff in the pull request:
https://github.com/apache/metron/pull/1209#discussion_r220557437
--- Diff: metron-analytics/metron-profiler-spark/README.md ---
@@ -263,6 +265,18 @@ The path to the input data read by the Batch Profiler.
The format of the input data read by the Batch Profiler.
+### `profiler.batch.input.begin`
+
+*Default*: undefined
+
+Only messages with a timestamp after this will be profiled. By default, no
time constraint is defined. The value is expected to follow the [ISO-8601
instant
format](https://docs.oracle.com/javase/8/docs/api/java/time/format/DateTimeFormatter.html#ISO_INSTANT);
2011-12-03T10:15:30Z.
+
+### `profiler.batch.input.end`
--- End diff --
I updated the README to clarify this point.
---
