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Erlang Mnesia数据库的备份和还原

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Release： 2016-06-07 15:42:03
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1、备份： mnesia:backup(/home/mnesia_backup/20140903.log). 2、还原： mnesia:restore(/home/mnesia_backup/20140903.log,[]). 第一次测试的时候，先备份，之后将mnesia目录下文件统统删除。之后运行还原的命令，竟然出现以下错误： 起初以为是reserved_a

1、备份：

mnesia:backup("/home/mnesia_backup/20140903.log").

Erlang Mnesia数据库的备份和还原


2、还原：

mnesia:restore("/home/mnesia_backup/20140903.log",[]).

第一次测试的时候，先备份，之后将mnesia目录下文件统统删除。之后运行还原的命令，竟然出现以下错误：

Erlang Mnesia数据库的备份和还原

起初以为是reserved_acc数据表有问题，最后才发现，将mnesia目录文件全部删除后，表的数据都不存在了。所以要先建立空表。之后才能还原！

Erlang Mnesia数据库的备份和还原

这样就正常了。

Related labels：
erlang backup database reduction
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