Warning: Redis::connect(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /www/wwwroot/sanwang/lib/cache.class.php on line 11

Fatal error: Uncaught exception 'RedisException' with message 'php_network_getaddresses: getaddrinfo failed: Name or service not known' in /www/wwwroot/sanwang/lib/cache.class.php:11 Stack trace: #0 /www/wwwroot/sanwang/lib/cache.class.php(11): Redis->connect('r-bp142zyqefww6...', '6379') #1 /www/wwwroot/sanwang/lib/db.class.php(137): cache->__construct() #2 /www/wwwroot/sanwang/houtai.h2o-china.com/video/search.php(135): db->getAll('SELECT id,title...') #3 /www/wwwroot/sanwang/houtai.h2o-china.com/video/search.php(44): app->getAllCategory(15) #4 /www/wwwroot/sanwang/common.inc.php(114): app->main() #5 /www/wwwroot/sanwang/houtai.h2o-china.com/common.php(26): require('/www/wwwroot/sa...') #6 {main} thrown in /www/wwwroot/sanwang/lib/cache.class.php on line 11