无法连接数据库:Too many connections

>  /app/base/lib/db/connections.php:198
#0trigger_error(...string(42) "无法连接数据库:Too many connections" ,'256')connections.php:198
#1base_db_connections->_connect('db-master.local.com','ecstore','oU2py8NzZkbz','ecstore')connections.php:187
#2base_db_connections->_rw_conn()connections.php:172
#3base_db_connections->_ro_conn()connections.php:112
#4base_db_connections->select(...string(37) "select * from sdb_dbeav_meta_register" )metadata.php:27
#5dbeav_metadata->__construct('all')kernel.php:343
#6kernel::single('dbeav_metadata','all')meta.php:96
#7dbeav_meta::get_meta_column('sdb_b2c_sellers')sellers.php:1105
#8b2c_mdl_sellers->use_meta()sellers.php:33
#9b2c_mdl_sellers->__construct(object(appobject(app)#10 (21) { ["__render":"app":private]=> NULL ["__router":"app":private]=> NULL ["__define":"app":private]=> NULL ["__taskrunner":"app":private]=> NULL ["__checkVaryArr":"app":private]=> array(0) { } ["__langPack":"app":private]=> array(0) { } ["__installed":"app":private]=> NULL ["__actived":"app":private]=> NULL ["__setting":"app":private]=> NULL ["app_id"]=> string(3) "b2c" ["app_dir"]=> string(24) "/srv/www/default/app/b2c" ["res_url"]=> string(49) "http://www.mctmall.cn:8080/public/app/b2c/statics" ["res_full_url"]=> string(49) "http://www.mctmall.cn:8080/public/app/b2c/statics" ["lang_url"]=> string(46) "http://www.mctmall.cn:8080/public/app/b2c/lang" ["lang_full_url"]=> string(46) "http://www.mctmall.cn:8080/public/app/b2c/lang" ["widgets_url"]=> string(49) "http://www.mctmall.cn:8080/public/app/b2c/widgets" ["widgets_full_url"]=> string(53) "http://www.mctmall.cn:8080/public/app/app/b2c/widgets" ["res_dir"]=> string(32) "/srv/www/default/app/b2c/statics" ["widgets_dir"]=> string(32) "/srv/www/default/app/b2c/widgets" ["lang_dir"]=> string(29) "/srv/www/default/app/b2c/lang" ["_lang_resource"]=> NULL } ))kernel.php:343
#10kernel::single('b2c_mdl_sellers',object(appobject(app)#10 (21) { ["__render":"app":private]=> NULL ["__router":"app":private]=> NULL ["__define":"app":private]=> NULL ["__taskrunner":"app":private]=> NULL ["__checkVaryArr":"app":private]=> array(0) { } ["__langPack":"app":private]=> array(0) { } ["__installed":"app":private]=> NULL ["__actived":"app":private]=> NULL ["__setting":"app":private]=> NULL ["app_id"]=> string(3) "b2c" ["app_dir"]=> string(24) "/srv/www/default/app/b2c" ["res_url"]=> string(49) "http://www.mctmall.cn:8080/public/app/b2c/statics" ["res_full_url"]=> string(49) "http://www.mctmall.cn:8080/public/app/b2c/statics" ["lang_url"]=> string(46) "http://www.mctmall.cn:8080/public/app/b2c/lang" ["lang_full_url"]=> string(46) "http://www.mctmall.cn:8080/public/app/b2c/lang" ["widgets_url"]=> string(49) "http://www.mctmall.cn:8080/public/app/b2c/widgets" ["widgets_full_url"]=> string(53) "http://www.mctmall.cn:8080/public/app/app/b2c/widgets" ["res_dir"]=> string(32) "/srv/www/default/app/b2c/statics" ["widgets_dir"]=> string(32) "/srv/www/default/app/b2c/widgets" ["lang_dir"]=> string(29) "/srv/www/default/app/b2c/lang" ["_lang_resource"]=> NULL } ))app.php:77
#11app->model('sellers')seller.php:21
#12b2c_ctl_site_seller->__construct(object(appobject(app)#10 (21) { ["__render":"app":private]=> NULL ["__router":"app":private]=> NULL ["__define":"app":private]=> NULL ["__taskrunner":"app":private]=> NULL ["__checkVaryArr":"app":private]=> array(0) { } ["__langPack":"app":private]=> array(0) { } ["__installed":"app":private]=> NULL ["__actived":"app":private]=> NULL ["__setting":"app":private]=> NULL ["app_id"]=> string(3) "b2c" ["app_dir"]=> string(24) "/srv/www/default/app/b2c" ["res_url"]=> string(49) "http://www.mctmall.cn:8080/public/app/b2c/statics" ["res_full_url"]=> string(49) "http://www.mctmall.cn:8080/public/app/b2c/statics" ["lang_url"]=> string(46) "http://www.mctmall.cn:8080/public/app/b2c/lang" ["lang_full_url"]=> string(46) "http://www.mctmall.cn:8080/public/app/b2c/lang" ["widgets_url"]=> string(49) "http://www.mctmall.cn:8080/public/app/b2c/widgets" ["widgets_full_url"]=> string(53) "http://www.mctmall.cn:8080/public/app/app/b2c/widgets" ["res_dir"]=> string(32) "/srv/www/default/app/b2c/statics" ["widgets_dir"]=> string(32) "/srv/www/default/app/b2c/widgets" ["lang_dir"]=> string(29) "/srv/www/default/app/b2c/lang" ["_lang_resource"]=> NULL } ))kernel.php:343
#13kernel::single('b2c_ctl_site_seller',object(appobject(app)#10 (21) { ["__render":"app":private]=> NULL ["__router":"app":private]=> NULL ["__define":"app":private]=> NULL ["__taskrunner":"app":private]=> NULL ["__checkVaryArr":"app":private]=> array(0) { } ["__langPack":"app":private]=> array(0) { } ["__installed":"app":private]=> NULL ["__actived":"app":private]=> NULL ["__setting":"app":private]=> NULL ["app_id"]=> string(3) "b2c" ["app_dir"]=> string(24) "/srv/www/default/app/b2c" ["res_url"]=> string(49) "http://www.mctmall.cn:8080/public/app/b2c/statics" ["res_full_url"]=> string(49) "http://www.mctmall.cn:8080/public/app/b2c/statics" ["lang_url"]=> string(46) "http://www.mctmall.cn:8080/public/app/b2c/lang" ["lang_full_url"]=> string(46) "http://www.mctmall.cn:8080/public/app/b2c/lang" ["widgets_url"]=> string(49) "http://www.mctmall.cn:8080/public/app/b2c/widgets" ["widgets_full_url"]=> string(53) "http://www.mctmall.cn:8080/public/app/app/b2c/widgets" ["res_dir"]=> string(32) "/srv/www/default/app/b2c/statics" ["widgets_dir"]=> string(32) "/srv/www/default/app/b2c/widgets" ["lang_dir"]=> string(29) "/srv/www/default/app/b2c/lang" ["_lang_resource"]=> NULL } ))app.php:73
#14app->controller('site_seller')router.php:614
#15site_router->default_dispatch()router.php:510
#16site_router->dispatch(...string(26) "seller-gallery-550-53.html" )kernel.php:167
#17kernel::boot()index.php:5