hi
We just implemented a new website and then discovered that the xml sitemap module does not include all URL's which should be included. We then checked 4 other of our websites and found on 3 websites the same problem.
We spent now already at least 10 hours debugging and testing, removing other modules etc. without success.
What we observe
1. If a node type has xmlsitemap=exclude (=default value) and nodes of this type has xmlsitemap=included, they are not considered in the xmlsitemap. But they should.
2. If a node type has xmlsitemap=include (=default value) and nodes of this type has xmlsitemap=default, the are not considered int he xmlsitemap. Also here, they should be considered
--> in both cases: This does not happen for all node types. It is completely unclear why it happens for some and why not
3. The complete sitemap currently has e.g. 750 nodes. We observe that suddenly it has only 670 nodes. And when we manually rebuild, then it is 750 again.
What we tried: manually building the sitemap, rebuilding the sitemap, execute cron, force cron, empty cache, disable other modules etc etc. Withotu success, the problem 1&2 remain. We are using elysia cron, also removed this module, no success.
Basically generating a xml sitemap is a simple task. I guess the module uses some advanced caching techniques in order only to update changed nodes and here maybe the problem is.
I searched forums but could only seldom find similar problems. I guess the problem is, that the bug is not visible immediately, especially when you have sitemaps with several hundred nodes.
So I would like to ask the maintainers: Can you give us some hints where in the module we should start searching,how the caching mechanism works etc. to track down this problem?
thanks
Andre