I seem to be having the same issue here. The search indexing (native) is taking a long time and seems to stopped looping somewhere around post id 1500.
The board was upgrated from 2.0.23 to 3.0.4.
Board statistics: Total posts 410279 | Total topics 31125 | Total members 3101
We're running on Debian 5.0, PHP 5.2.6, Apache 2.2.9, MySQL 5.0.5. Tables are MyISAM
Any/all suggestions are welcome!
I have tried starting the indexing again after changing some search parameters but it always starts looping at the same place. The indexing has been running for many hours and I'm afraid that if it eventually will finish I just get the same problem with "common" words as mentioned in this thread.
EDIT: I have auto-pruning enabled on one forum if that matters.. saw pruning mentioned somewhere when searching for this problem.