reindex failure - Class 'Magento_Db_Adapter_Pdo_Mysql' not found

Question

I recently upgraded our shop to Magento 1.9.3.2 but we've had indexing issues since.

when I run the reindex command:-

php -f /var/www/shell/indexer.php reindexall

I get this error:-

PHP Fatal error: Class 'Magento_Db_Adapter_Pdo_Mysql' not found in /var/www/app/code/core/Mage/Core/Model/Resource.php on line 175

I get the exact same error for these commands:-

php -f compiler.php clear
php -f compiler.php disable

we tried changing the permissions to 775 on this file (where the class id defined)

/var/www/lib/Magento/Db/Adapter/Pdo/Mysql.php

but it didn't help.

Can anyone suggest how we can resolve this?

Answer 1

It was a permissions issue. I ran the following:

sudo sh ResetFilePermissions.sh

which was at the same level as our magento root then restarted Apache

I don't know if this script was written by Magento or if it was written in house. Now I no longer get the error '..Class 'Magento_Db_Adapter_Pdo_Mysql' not found..'. :)

Now I can disable the compiler.

Then I get a new error :/ which I hope has a solution: PHP Fatal error: Uncaught exception 'Mage_Core_Exception' with message 'Indexer model is not defined.' in /var/www/app/Mage.php:595

Answer 2

Disable compiler by command prompt

php -f shell/compiler.php -- disable
php -f shell/compiler.php -- clear

Also give permission to your user group

The chown command has the following syntax:

chown username:groupname directory

Example

sudo chown -R root:alex your_root_directory

Hope it will work.