mysql更新日志问题

[root@localhost ~]# /etc/init.d/mysqld restart
停止 mysqld：                                              [确定]
正在启动 mysqld：                                          [确定]

故障：今天在维护以前数据库日志的时候，把目录下所有的日志都压缩拷贝到本地了以防以后查询使用，压缩之后清理了日志目录下/var/log/mysqllog所有的日志，然后重启服务

/etc/init.d/mysqld restart

[root@localhost ~]# /etc/init.d/mysqld start
MySQL Daemon failed to start.
正在启动 mysqld：                                          [失败]

查看日志，

[root@localhost ~]# tailf /var/log/mysqld.log
 :: [ERROR] Failed to open log (file '/var/log/mysqllog/myupdate.000050', errno )
 :: [ERROR] Could not open log file
 :: [ERROR] Can't init tc log
 :: [ERROR] Aborting

 ::  InnoDB: Starting shutdown...
 ::  InnoDB: Shutdown completed; log sequence number
 :: [Note] /usr/libexec/mysqld: Shutdown complete

 :: mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended

这个文件已经被我删除/var/log/mysqllog/myupdate.000050，是更新日志最后一个文件，所以mysql找不到这个文件，应该是还准备往这个文件里面写日志，所以我想是不是有什么命令应该可以让mysql更新日志重新滚动呢，在网上找了好久没找到，最后看见了在目录下面myupdate.index 这个文件。

[root@localhost mysqllog]# ls
log.sh  mycommon-.log  mycommon-.log  mycommon-.log  mycommon-.log  mycommon-.log  mycommon.log  myupdate.index

[root@localhost mysqllog]# more myupdate.index
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.
/var/log/mysqllog/myupdate.

原来这是记录了所有文件的索引信息，是不是清空了就会重新创建000001文件呢，试了一下。

[root@localhost mysqllog]# >myupdate.index 

[root@localhost ~]# /etc/init.d/mysqld restart
停止 mysqld：                                              [确定]
正在启动 mysqld：                                          [确定]

果然可以正常启动了，再看目录下面也确实创建了000001，不知道有没有像我一样遇到这样问题的朋友，我觉得应该会有什么命令可以重载myupdate.index文件，本人数据库新手，虽然这个故障可能对于别人比较简单，记录下来供刚入门的朋友参考。