Topic on Extension talk:SemanticDependencyUpdater

I have wasted many hours trying to find the cause of my problems. If your wiki has stopped working, or you have memory leaks while executing maintenance scripts, check to see if this extension is the culprit.

My wiki statistic:

Page statistics
Content pages	330
Pages (All pages in the wiki, including talk pages, redirects, etc.)	1,709
Uploaded files	218

Semantic statistics
Property values (total)	26,043
-  Property values (improper annotations)	18
Properties (total) ⁱ	205
-  Properties (used with at least one value)	162
-  Properties (registered with a page) ⁱ	195
-  Properties (assigned to a datatype)	87
Entities (total) ⁱ	4,905
-  Outdated entities ⁱ	481
-  Subobjects	0
-  Concepts	0
-  Queries (embedded, total)	2,671
-  plainlist format	1,890
-  count format	757
-  list format	40
Datatypes	18

Errors:

• Unable to use maintenance scripts: rebuildData.php - cause massive memory leak on pages.
• Unable to use semantic annotations and templates on pages with SemanticDependencyUpdater.

All errors went gone when I disabled it.

Sorry if this extension caused problems in your case. The above report is not very helpful without further information about which versions of MW and SMW you are using. Additionally your specific use case and configuration is required to find out what's going wrong. Feel free to open an issue at https://github.com/gesinn-it/SemanticDependencyUpdater/

That was a long time ago, and I was using MW 1.34 at the time, but I was able to track down the causes. As far as I remember, it turned out that the problem was with cyclical dependencies. Additionally, the updates were too slow, so I quit and removed the extension.