分布式集群环境的一些问题

WordPress数据库错误： [Too many connections]

SELECT wp_posts.*, CHAR_LENGTH(wp_posts.post_title) post_title_length
FROM wp_posts
WHERE 1=1 AND wp_posts.ID NOT IN (256453) AND ((wp_posts.post_type = &＃039;encyclopedia&＃039; AND (wp_posts.post_status = &＃039;publish&＃039;)))

ORDER BY post_title_length DESC