系统发生错误

:(

2006:MySQL server has gone away [ SQL语句 ] : SELECT a.id,a.title,a.pinyin,a.thumb,a.cate,a.info,a.posttime,a.updatetime,a.lastchapter,a.lastcid,a.author,a.full,av.views,av.weekviews,av.monthviews FROM yg_articles a LEFT JOIN yg_article_views av ON a.id=av.aid WHERE ( 1 and a.thumb is not null ) ORDER BY av.views desc LIMIT 30

错误位置

FILE: /www/wwwroot/ebook.laoliu999.com/ThinkPHP/Library/Think/Db/Driver.class.php  LINE: 350

TRACE

#0 /www/wwwroot/ebook.laoliu999.com/ThinkPHP/Library/Think/Db/Driver.class.php(350): E('2006:MySQL serv...')
#1 /www/wwwroot/ebook.laoliu999.com/ThinkPHP/Library/Think/Db/Driver.class.php(180): Think\Db\Driver->error()
#2 /www/wwwroot/ebook.laoliu999.com/ThinkPHP/Library/Think/Db/Driver.class.php(946): Think\Db\Driver->query('SELECT a.id,a.t...', false)
#3 /www/wwwroot/ebook.laoliu999.com/ThinkPHP/Library/Think/Model.class.php(579): Think\Db\Driver->select(Array)
#4 /www/wwwroot/ebook.laoliu999.com/Application/Common/Cron/dataarea_update.php(68): Think\Model->select()
#5 /www/wwwroot/ebook.laoliu999.com/ThinkPHP/Library/Behavior/CronRunBehavior.class.php(44): include('/www/wwwroot/eb...')
#6 /www/wwwroot/ebook.laoliu999.com/ThinkPHP/Library/Think/Hook.class.php(119): Behavior\CronRunBehavior->run(NULL)
#7 /www/wwwroot/ebook.laoliu999.com/ThinkPHP/Library/Think/Hook.class.php(89): Think\Hook::exec('Behavior\\CronRu...', 'run', NULL)
#8 /www/wwwroot/ebook.laoliu999.com/ThinkPHP/Library/Think/App.class.php(206): Think\Hook::listen('app_end')
#9 /www/wwwroot/ebook.laoliu999.com/ThinkPHP/Library/Think/Think.class.php(120): Think\App::run()
#10 /www/wwwroot/ebook.laoliu999.com/ThinkPHP/ThinkPHP.php(97): Think\Think::start()
#11 /www/wwwroot/ebook.laoliu999.com/index.php(4): require('/www/wwwroot/eb...')
#12 {main}