Example of Best Effort Resequencing Based on a Time Window
Table 23-5 illustrates the behavior of the best effort resequencer when it is configured to process messages based on the time period in which they arrive. In this example, the time window is 10 minutes, the buffer is 10% (one minute), and msgX(Y) indicates that the message arrives as message number X to the Mediator service component and the message contains the sequence ID Y. The first message arrives at 2:00:00, which starts the time window. The time window lasts until 2:10:00, but with the addition of the buffer time, messages that arrived until 2:11:00 are processed.
Table 23-5 Best Effort Resequencer Behavior Based on a Time Window
| Group CMessage/Time | Sequenced Messages |
|---|---|
|
msg01(04)/2:00:00 msg02(05)/2:00:20 msg03(01)/2:00:30 msg04(03)/2:00:50 msg05(07)/2:04:20 msg06(02)/2:04:45 msg07(13)/2:05:10 msg08(08)/2:05:40 msg09(06)/2:08:40 msg10(12)/2:09:20 msg11(10)/2:10:30 msg12(09)/2:10:40 msg13(14)/2:10:50 msg14(11)/2:13:00 |
msg03(01), msg06(02), msg04(03), msg01(04), msg02(05), msg09(06), msg05(07), msg08(08), msg12(09), msg11(10), msg10(12), msg07(13) |
Note:
In the above example, the resequencer identified the maximum sequence ID for the time window as 13 (from message 7). Message 13 arrived within the buffer time, but has a sequence ID of 14. It is not processed with the original group, but instead begins a new time window at its arrival time of 2:10:50. Message 14 arrived too late and is included in the second time window.