read error on connection

#0 /var/www/hankypanky/releases/1.0.0.4/lib/Credis/Client.php(440): Credis_Client->__call('select', Array)
#1 /var/www/hankypanky/releases/1.0.0.4/lib/Cm/Cache/Backend/Redis.php(117): Credis_Client->select(0)
#2 /var/www/hankypanky/releases/1.0.0.4/lib/Zend/Cache.php(153): Cm_Cache_Backend_Redis->__construct(Array)
#3 /var/www/hankypanky/releases/1.0.0.4/lib/Zend/Cache.php(94): Zend_Cache::_makeBackend('Mage_Cache_Back...', Array, true, true)
#4 /var/www/hankypanky/releases/1.0.0.4/app/code/core/Mage/Core/Model/Cache.php(137): Zend_Cache::factory('Varien_Cache_Co...', 'Mage_Cache_Back...', Array, Array, true, true, true)
#5 /var/www/hankypanky/releases/1.0.0.4/app/code/core/Mage/Core/Model/Config.php(1348): Mage_Core_Model_Cache->__construct(Array)
#6 /var/www/hankypanky/releases/1.0.0.4/app/Mage.php(463): Mage_Core_Model_Config->getModelInstance('core/cache', Array)
#7 /var/www/hankypanky/releases/1.0.0.4/app/code/core/Enterprise/PageCache/Model/Cache.php(68): Mage::getModel('core/cache', Array)
#8 /var/www/hankypanky/releases/1.0.0.4/app/code/core/Enterprise/PageCache/Model/Processor.php(184): Enterprise_PageCache_Model_Cache::getCacheInstance()
#9 /var/www/hankypanky/releases/1.0.0.4/app/code/local/HankyPanky/PageCache/Model/Processor.php(47): Enterprise_PageCache_Model_Processor->_getDesignPackage()
#10 /var/www/hankypanky/releases/1.0.0.4/app/code/core/Enterprise/PageCache/Model/Processor.php(108): HankyPanky_PageCache_Model_Processor->_createRequestIds()
#11 /var/www/hankypanky/releases/1.0.0.4/app/code/core/Mage/Core/Model/Cache.php(703): Enterprise_PageCache_Model_Processor->__construct()
#12 /var/www/hankypanky/releases/1.0.0.4/app/code/core/Mage/Core/Model/Cache.php(685): Mage_Core_Model_Cache->_getProcessor('HankyPanky_Page...')
#13 /var/www/hankypanky/releases/1.0.0.4/app/code/core/Mage/Core/Model/App.php(340): Mage_Core_Model_Cache->processRequest()
#14 /var/www/hankypanky/releases/1.0.0.4/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#15 /var/www/hankypanky/releases/1.0.0.4/index.php(98): Mage::run('default', 'store', Array)
#16 {main}