SQLSTATE[HY000]: General error: 1021 Disk full (/tmp/#sql_2b0_0.MAI); waiting for someone to free some space... (errno: 28 "No space left on device"), query was: DESCRIBE `log_visitor_info`

#0 /var/www/html/lib/Varien/Db/Statement/Pdo/Mysql.php(92): Zend_Db_Statement_Pdo->_execute(Array)
#1 /var/www/html/app/code/core/Zend/Db/Statement.php(290): Varien_Db_Statement_Pdo_Mysql->_execute(Array)
#2 /var/www/html/lib/Zend/Db/Adapter/Abstract.php(480): Zend_Db_Statement->execute(Array)
#3 /var/www/html/lib/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('DESCRIBE `log_v...', Array)
#4 /var/www/html/lib/Varien/Db/Adapter/Pdo/Mysql.php(486): Zend_Db_Adapter_Pdo_Abstract->query('DESCRIBE `log_v...', Array)
#5 /var/www/html/lib/Zend/Db/Adapter/Pdo/Mysql.php(171): Varien_Db_Adapter_Pdo_Mysql->query('DESCRIBE `log_v...')
#6 /var/www/html/lib/Varien/Db/Adapter/Pdo/Mysql.php(1676): Zend_Db_Adapter_Pdo_Mysql->describeTable('log_visitor_inf...', NULL)
#7 /var/www/html/app/code/core/Mage/Core/Model/Resource/Abstract.php(195): Varien_Db_Adapter_Pdo_Mysql->describeTable('log_visitor_inf...')
#8 /var/www/html/app/code/core/Mage/Log/Model/Resource/Visitor.php(183): Mage_Core_Model_Resource_Abstract->_prepareDataForTable(Object(Varien_Object), 'log_visitor_inf...')
#9 /var/www/html/app/code/core/Mage/Log/Model/Resource/Visitor.php(111): Mage_Log_Model_Resource_Visitor->_saveVisitorInfo(Object(Mage_Log_Model_Visitor))
#10 /var/www/html/app/code/core/Mage/Core/Model/Resource/Db/Abstract.php(445): Mage_Log_Model_Resource_Visitor->_afterSave(Object(Mage_Log_Model_Visitor))
#11 /var/www/html/app/code/core/Mage/Core/Model/Abstract.php(300): Mage_Core_Model_Resource_Db_Abstract->save(Object(Mage_Log_Model_Visitor))
#12 /var/www/html/app/code/core/Mage/Log/Model/Visitor.php(180): Mage_Core_Model_Abstract->save()
#13 /var/www/html/app/code/core/Mage/Core/Model/App.php(1342): Mage_Log_Model_Visitor->initByRequest(Object(Varien_Event_Observer))
#14 /var/www/html/app/code/core/Mage/Core/Model/App.php(1321): Mage_Core_Model_App->_callObserverMethod(Object(Mage_Log_Model_Visitor), 'initByRequest', Object(Varien_Event_Observer))
#15 /var/www/html/app/Mage.php(432): Mage_Core_Model_App->dispatchEvent('controller_acti...', Array)
#16 /var/www/html/app/code/core/Mage/Core/Controller/Varien/Action.php(509): Mage::dispatchEvent('controller_acti...', Array)
#17 /var/www/html/app/code/core/Mage/Core/Controller/Front/Action.php(51): Mage_Core_Controller_Varien_Action->preDispatch()
#18 /var/www/html/app/code/core/Mage/Core/Controller/Varien/Action.php(389): Mage_Core_Controller_Front_Action->preDispatch()
#19 /var/www/html/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(236): Mage_Core_Controller_Varien_Action->dispatch('view')
#20 /var/www/html/app/code/core/Mage/Core/Controller/Varien/Front.php(153): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#21 /var/www/html/app/code/core/Mage/Core/Model/App.php(348): Mage_Core_Controller_Varien_Front->dispatch()
#22 /var/www/html/app/Mage.php(667): Mage_Core_Model_App->run(Array)
#23 /var/www/html/index.php(48): Mage::run('', 'store')
#24 {main}