2)cron运行失败后的办法:运行下DELETE FROM `variable` WHERE name = "cron_semaphore";
3)
1、增加 PHP 内存
2、includes\common.inc : // function drupal_cron_run() { // If not in 'safe mode', increase the maximum execution time: if (!ini_get('safe_mode')) { set_time_limit(240); '将240改为2400 }