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Hi,
after I updated the website to Events Calendar PRO 3.6.1 the WordPress admin started acting out. I could work in the admin yesterday after I disable the plugin and reactivated it but now it does not help. The admin panel load times out (60 secs) and I get a HTTP 500 error. If I disable Events Calendar PRO, the admin panel loads normally. We have around 10 000 events in the system.
I think the problem might be related to the changes that have been made to recurrence handling as all my recurrences had problems after the update. Events displayed strange end dates and the links pointed to different occurrences of the recurrence than what was listed. This problem could be solved by resetting the recurrence end date and saving the event. It would then recreate all the occurrences. Is there some sort of a loop related to the recurring events that is fired when the admin is loaded?
Additional information: If I load the admin panel multiple times it will load, so there is some script that loads very long.
Hello apkoponen,
Sorry you are experiencing this!
What version did you update from? Could I get some more information about your server instance? 10,000 events is quite a few and depending on the theme/admin setup most consumer servers are just not cut out to handle it.
I’ll let a dev know about this, to see if I can get the right information. Our next few maintenance releases are concerning power and efficiency, so they’ll want to know about your situation.
Is there a specific admin page that is causing this, or is it every admin page? Any problems on the front end?
In the WP-Admin, at the bottom of the Events > Settings > Help tab, there will be a ‘systems settings’ box. Can you copy that and paste it into a private reply?
Does this make sense? Let me know if I can explain anything else!
Cheers!
– Casey Driscoll
> What version did you update from?
DB dump says 3.3 (I haven’t been updating the plugin that often because every time I do I get problems. :S)
> Could I get some more information about your server instance?
We’re running the site on a VPS with 768 MB of RAM.
> Is there a specific admin page that is causing this, or is it every admin > page? Any problems on the front end?
No problems on the front end. Every page below /wp-admin/ is slow, which leads me to believe that the problem is some resource intensive hook that is run periodically on the admin pages. After I get through the backend works properly for some time.
> In the WP-Admin, at the bottom of the Events > Settings > Help tab, there > will be a ‘systems settings’ box. Can you copy that and paste it into a > private reply?
Below.
Hello apkoponen,
This is tough! It’s hard to say exactly is the problem, but since it was a major upgrade covering several versions, my guess is the process is still upgrading. The 3.4 to 3.5 upgrade had a major mysql upgrade, where we shifted the db schema, to build a stronger feature set down the road.
It’s difficult to say what your exact course of action should be, and we don’t exactly have a playbook for an edge case like this. If it were me, after a few years experience maintaining these sorts of things, I would do a complete upgrade on a local system (where you would have a stronger CPU and much more memory) and then migrate the data to your production site. With 10,000 events (on a production server), my gut says it is just going to hang until it is completed. I might be wrong though.
Here is our article update about the 3.5 schema updates https://theeventscalendar.com/release-events-calendar-pro-3-5-2-hotfix/
Does this make sense? Let me know if this doesn’t work for you.
Cheers!
– Casey Driscoll
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