SQLSTATE[HY000]: General error: 1021 Disk full (/tmp/#sql_30d_1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device"), query was: DESCRIBE `prod_log_visitor_info`

#0 /var/www/clients/client1/web1/web/lib/Varien/Db/Statement/Pdo/Mysql.php(110): Zend_Db_Statement_Pdo->_execute(Array)
#1 /var/www/clients/client1/web1/web/app/code/core/Zend/Db/Statement.php(291): Varien_Db_Statement_Pdo_Mysql->_execute(Array)
#2 /var/www/clients/client1/web1/web/lib/Zend/Db/Adapter/Abstract.php(480): Zend_Db_Statement->execute(Array)
#3 /var/www/clients/client1/web1/web/lib/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('DESCRIBE `prod_...', Array)
#4 /var/www/clients/client1/web1/web/lib/Varien/Db/Adapter/Pdo/Mysql.php(504): Zend_Db_Adapter_Pdo_Abstract->query('DESCRIBE `prod_...', Array)
#5 /var/www/clients/client1/web1/web/lib/Zend/Db/Adapter/Pdo/Mysql.php(171): Varien_Db_Adapter_Pdo_Mysql->query('DESCRIBE `prod_...')
#6 /var/www/clients/client1/web1/web/lib/Varien/Db/Adapter/Pdo/Mysql.php(1694): Zend_Db_Adapter_Pdo_Mysql->describeTable('prod_log_visito...', NULL)
#7 /var/www/clients/client1/web1/web/app/code/core/Mage/Core/Model/Resource/Abstract.php(212): Varien_Db_Adapter_Pdo_Mysql->describeTable('prod_log_visito...')
#8 /var/www/clients/client1/web1/web/app/code/core/Mage/Log/Model/Resource/Visitor.php(201): Mage_Core_Model_Resource_Abstract->_prepareDataForTable(Object(Varien_Object), 'prod_log_visito...')
#9 /var/www/clients/client1/web1/web/app/code/core/Mage/Log/Model/Resource/Visitor.php(129): Mage_Log_Model_Resource_Visitor->_saveVisitorInfo(Object(Mage_Log_Model_Visitor))
#10 /var/www/clients/client1/web1/web/app/code/core/Mage/Core/Model/Resource/Db/Abstract.php(463): Mage_Log_Model_Resource_Visitor->_afterSave(Object(Mage_Log_Model_Visitor))
#11 /var/www/clients/client1/web1/web/app/code/core/Mage/Core/Model/Abstract.php(318): Mage_Core_Model_Resource_Db_Abstract->save(Object(Mage_Log_Model_Visitor))
#12 /var/www/clients/client1/web1/web/app/code/core/Mage/Log/Model/Visitor.php(198): Mage_Core_Model_Abstract->save()
#13 /var/www/clients/client1/web1/web/app/code/core/Mage/Core/Model/App.php(1358): Mage_Log_Model_Visitor->initByRequest(Object(Varien_Event_Observer))
#14 /var/www/clients/client1/web1/web/app/code/core/Mage/Core/Model/App.php(1337): Mage_Core_Model_App->_callObserverMethod(Object(Mage_Log_Model_Visitor), 'initByRequest', Object(Varien_Event_Observer))
#15 /var/www/clients/client1/web1/web/app/Mage.php(448): Mage_Core_Model_App->dispatchEvent('controller_acti...', Array)
#16 /var/www/clients/client1/web1/web/app/code/core/Mage/Core/Controller/Varien/Action.php(527): Mage::dispatchEvent('controller_acti...', Array)
#17 /var/www/clients/client1/web1/web/app/code/core/Mage/Core/Controller/Front/Action.php(69): Mage_Core_Controller_Varien_Action->preDispatch()
#18 /var/www/clients/client1/web1/web/app/code/core/Mage/Core/Controller/Varien/Action.php(407): Mage_Core_Controller_Front_Action->preDispatch()
#19 /var/www/clients/client1/web1/web/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('view')
#20 /var/www/clients/client1/web1/web/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#21 /var/www/clients/client1/web1/web/app/code/core/Mage/Core/Model/App.php(365): Mage_Core_Controller_Varien_Front->dispatch()
#22 /var/www/clients/client1/web1/web/app/Mage.php(683): Mage_Core_Model_App->run(Array)
#23 /var/www/clients/client1/web1/web/index.php(85): Mage::run('', 'store')
#24 {main}