Thread:Project:Support desk/Articles will not save if they are large/reply (9)

Maybe try a smaller, more "realistic" size for $wgMaxArticleSize? The variable is in kilobytes, so the number you said you used is over 9000 gigabytes. Try 104857600, which is the equivalent of 100GB maybe. Not sure if that would have any effect on it.

Also, I've heard of similar issues like this and experienced them first-hand on a wiki I work at, where the issue is related to the lack of enough RAM on the server. How much RAM does the server you're using have, and do you know if you could increase it?