Magento “Front controller reached 100 router match iterations” error

Question

My site is going down once or twice a day when it starts throwing the exception \"Front controller reached 100 router match iterations\". Once this happens access to the adm

Answer 1

We've been having the same issue, and dug a little deeper to discover that the issue doesn't directly relate to which routers are loaded but which modules are loaded.

To work this out we added the following debug code:

    app/code/core/Mage/Core/Controller/Varien/Front.php : Line 183

    if ($i>100) {
        file_put_contents('/tmp/debug.txt', Mage::getConfig()->getNode()->asNiceXml());
        Mage::throwException('Front controller reached 100 router match iterations');
    }

When we check the output of this, we can see that ONLY the Mage_Core module is loaded (check the node 'config/modules'. We think there is some kind of race condition that is occuring that means the system is left with a partially formed config that is then cached.

Would be interested in hearing if you have the same situation.