Site hangs

Hello -

We have a website that uses Joomdle along with Community Builder. Randomly throughout the day, the whole site will become non-responsive. When I run top, "moodle/webservice/xmlrpc/server.php" is always in there. It's not using a lot of resources, but for whatever reason it's hanging things up. If I kill that process the site become active again. I'm not sure what exactly is causing this. We have many users (~34,000) and it seems to take a while to churn through them. If I go to "Users" within Joomdle it takes forever to load, but doesn't kill the site. I'm thinking that the server.php script is being called by something else in the system. I'm just kind of at a loss for what could be requesting a listing of all the users.

Has anyone had anything similar to this happen? I'm not even sure where to debug anymore.

Thanks for any insight anyone has.

-Matt

Hi there, sorry to hear you are having problems. XMLRPC is used to connect Joomla to Moodle and is a generic API for connecting many platforms such as Joomla and Moodle.

Really, you will need to narrow down the issue to have determine if there is a particular Joomdle function that is being used which slows things down? What views, modules, etc. do you use from the frontend? What is the number of concurrent users at any given time? How often per day does the site become non-responsive. So far I have not come across another site where this as been an issue as Joomdle is pretty small and only tell Joomla or Moodle to do things that browsers would do anyway.

With regards to the backend "show users function" we are changing this to make it more effective. However, if this is the problem, than it is likely that you would immediately see the problem and be able to repeat it without much effort. It is more likely something from the front end that is being used by users over and over.

Chris

Try disabling (if you have it enabled) the joomdlesession plugin in Joomla, as it makes many calls to the web services.

Hi guys -

Thanks much for the help. We didn't have joomdlesession enabled, so that wasn't the issue.

We have pretty much every plug-in known to man installed on this site, so it was kind of hard to track down the problem. Looking through my logs, it appears to be tied to when a user changes their bill-to address in Virtuemart. Have you ever bumped into any one having issues with VM? Is this something I should see if VM has any insight about? We've done a ton of customization to this site, so it may have even been something we did before I came aboard. Do you have any suggestions on why VM btAddress may be hanging on the xmlprc?

Thanks very much for any help you may be able to give.

-Matt

This is a new one to me - never heard of anybody here mentioning such an issue. I doubt very much we can get to testing this within the next couple of weeks. If you have the time, you could setup a test site with just joomla, plain VM, Joomdle and Moodle and see what falls out.

Chris