Author sitemap uses too much memory

[jdevalk]

Generating the author sitemap on a site with a lot of users creates an enormous memory leak, this came in from a user (removed user specific stuff):

Today we have more than 30.000 posts and more than 50.000 users.

I had to increase the PHP memory from 256M to 1024M to create the sitemap, with only posts and users/authors checked (about 80.000 lines as total) to make it work.

Otherwise was giving me 500 error ([Mon Jun 24 14:18:16 2013] [error] [client 24.233.162.52] PHP Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 71 bytes) in /redacted/wp-includes/meta.php on line 574, referer: http://example.com/wp-admin/admin.php?page=wpseo_xml)

As we cannot set the PHP to 1024M, I decided to uncheck the users/authors and set the PHP with 256M and sitemapping only the posts. That way, everything worked fine.

[jdevalk]

This has probably been fixed in recent releases.