错误提示如下 Enter password: mysqldump: Got error: 1168: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist when using LOCK TABLES
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show global variables like "%open%"; 看看open_files_limit参数是多少，把它调大
show global variables like "%open%";
open_files_limit
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show global variables like "%open%";看看open_files_limit参数是多少，把它调大