background batch does not end xmpsitemap rebuilding

Hi dropbydrop

Sorry, I didn't see this post until now. I'll try to see what I can figure out about this.

I can recreate this error. It seems that xmlsitemap memory exhausts, and when this happens, the background batch doesn't restart automatically. The regular Drupal batch works, because when the client polls for status it actually also runs the batch job operation, thereby implying resume if it has crashed.

I'll see if I can mimic this behavior. Until then you should be able resume the batch job just by reloading the progress page.

Hi dropbydrop

I think I've improved this part (along with a dusin others). Two notable things are memory exhaust prevention for batch jobs (or at least an attempt), and automatic restart of the background batch job when viewing the progress indicator page. I've nearly just committed to dev, so tarball will probably not be ready before midnight UTC (i think that's when drupal.org builds them).

If you try it out, you also need to upgrade Ultimate Cron to the latest dev, in case you are using this, as I've had to implement a temporary reverse dependency here. You should probably also update the Progress module to the latest dev.

Let me know how it works for you.

Memory exhausted batch-jobs should restart by them selves now.