Late arriving hits late-arriving-hits
Understand late-arriving hits
Historical data can arrive after a data feed job finishes processing for a given hour or day, such as through timestamped hits or data sources.
When a data feed normally processes data, it only looks at data within its reporting window (typically the most recent hour or day). If data arrives after a feed finished processing that reporting window, that data is never included in any data feed.
With late-arriving hits enabled, the processing method changes to include this data. Every time a data feed processes data, it looks at any late hits that have arrived and batches them in the next data feed file that is sent.
Enable late-arriving hits
Before enabling the option to allow late-arriving hits for a data feed, consider the following:
- Data for different days frequently appear in data feeds when late-arriving hits are enabled. Make sure the platform that you use to ingest data feeds can accommodate data from different days within the same file.
- If a data feed file is reprocessed, the late-arriving hits that were included in the original file are included in the reprocessed file when reprocessing occurs within the first 5 days. After 5 days, late-arriving hits are not included in the reprocessed file.
You can enable late-arrive hits when creating or editing a data feed by enabling the option, Allow late-arriving hits, as described in Create a data feed.