WordPress数据库错误: [Got error 28 from storage engine]
SHOW FULL COLUMNS FROM `wp_options`

WordPress数据库错误: [Got error 28 from storage engine]
SELECT t.*, tt.*, tr.object_id FROM wp_terms AS t INNER JOIN wp_term_taxonomy AS tt ON t.term_id = tt.term_id INNER JOIN wp_term_relationships AS tr ON tr.term_taxonomy_id = tt.term_taxonomy_id WHERE tt.taxonomy IN ('category', 'post_tag', 'post_format') AND tr.object_id IN (1350) ORDER BY t.name ASC

悲观锁-zhi宝库-知识的收集和分享

WordPress数据库错误: [Got error 28 from storage engine]
SELECT t.*, tt.* FROM wp_terms AS t INNER JOIN wp_term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy IN ('category') AND t.term_id IN ( 20,5,13,2,4,17,18,102,133,10,101,116,212,205 ) AND tt.count > 0 ORDER BY t.name ASC

标签:悲观锁


Notice: Undefined offset: 0 in C:\phpStudy\WWW\wordpress.zhibaoku.com\wp-content\themes\xiu\excerpt.php on line 62

Redis分布式锁—-悲观锁实现,以秒杀系统为例

1

鑫神 发布于 2018-10-25

1、分布式锁 分布式锁在是一种用来安全访问分式式机器上变量的安全方案,一般用在全局id生成,秒杀系统,全局变量共享、分布式事务等。一般会有两种实现方案,一种是悲观锁的实现,一种是乐观锁的实现。悲观锁的并发性能差,但是能保证不会发生脏数据的可能性小一点。   2、Redi...

阅读(838)评论(0)赞 (0)