Banner推送流程

Understand the banner delivery process

 

From: http://www.openxtips.com/2009/04/tip-8-understand-the-banner-delivery-process/

The banner delivery process

It does not matter which zone tag type you use, the banner delivery process pretty much follows the same process. After some initial setup of the environment, the OpenX ad server uses the following process to determine which banner to deliver.

1. Find all of the active banners¹ that are linked to the zone.
2. Are there any active banners linked to the zone that are from Contract (Exclusive) campaigns? If so:
   1. Do any of the linked Contract (Exclusive) campaign banners “fail” delivery limitations?² If so, discard these banners.
   2. Are any of the linked Contract (Exclusive) campaign banners incompatible with the zone tag type?³ If so, discard these banners.
   3. Are there any banners remaining? If so:
      1. Select one of these banners via the campaign weight/banner weight process (see below).
      2. Log a request, using the selected banner ID and the zone ID.
      3. Display the banner.
      4. Log an impression, using the selected banner ID and the zone ID.
3. If this point is reached, then there were no banners from Contract (Exclusive) campaigns that could be displayed.
4. Are there any active banners linked to the zone that are from Contract campaigns? If so:
   1. Do any of the linked Contract campaign banners “fail” delivery limitations? If so, discard these banners.
   2. Are any of the linked Contract campaign banners incompatible with the zone tag type? If so, discard these banners.
   3. Are there any banners remaining? If so:
      1. Possibly select one of these banners via the Contract campaign banner selection process (see below).
      2. If a banner is selected:
         1. Log a request, using the selected banner ID and the zone ID.
         2. Display the banner.
         3. Log an impression, using the selected banner ID and the zone ID.
5. If this point is reached, then there were no banners from Contract (Exclusive) campaigns that could be displayed, and there were either no banners from Contract campaigns that could be displayed or no banner from a Contract campaign was required to be shown.
   
6. Are there any active banners linked to the zone that are from Remnant campaigns? If so:
   1. Do any of the linked Remnant campaign banners “fail” delivery limitations? If so, discard these banners.
   2. Are any of the linked Contract campaign banners incompatible with the zone tag type? If so, discard these banners.
   3. Are there any banners remaining? If so:
      1. Select one of these banners via the campaign weight/banner weight process (see below).
      2. Log a request, using the selected banner ID and the zone ID.
      3. Display the banner.
      4. Log an impression, using the selected banner ID and the zone ID.
7. If this point is reached, then there were no banners from Contract (Exclusive) campaigns that could be displayed, there were either no banners from Contract campaigns that could be displayed or no banner from a Contract campaign was required to be shown, and there were no banners from Remnant campaigns that could be displayed.
8. Is the zone set up via zone chaining to be linked to another zone? If so, re-start the process from the first step, using the new zone.
9. If this point is reached, then there were no banners from Contract (Exclusive) campaigns that could be displayed, there were either no banners from Contract campaigns that could be displayed or no banner from a Contract campaign was required to be shown, there were no banners from Remnant campaigns that could be displayed, and the zone is not set up via zone chaining to be linked to another zone.
   
10. Is a default banner configured? If so:
    1. Log a request, using the selected banner ID and the zone ID.
    2. Display the banner.
    3. Log an impression, using the selected banner ID and the zone ID.
11. If this point is reached, then no banner can be displayed.
12. Display a “blank” 1×1 .gif pixel.