mysqlhotcopy 提示DBD::mysql::db do failed: File not found (Errcode: 24) at /usr/local/mysql/bin/mysqlhotcopy line 477. 这是因为表的数目过多,有600个表,每个表3个文件,已经超过默认同时打开的文件数目是1024, 备份时需要锁表,导致出错.改my.conf即可. open_fil... [阅读全文]