Question

在mongodump之后，我做了mongorestore，似乎工作正常

heathers-air:db heathercohen$ mongorestore -v -host localhost:27017
2015-02-06T11:22:40.027-0800 creating new connection to:localhost:27017
2015-02-06T11:22:40.028-0800 [ConnectBG] BackgroundJob starting: ConnectBG
2015-02-06T11:22:40.028-0800 connected to server localhost:27017 (127.0.0.1)
2015-02-06T11:22:40.028-0800 connected connection!
connected to: localhost:27017
2015-02-06T11:22:40.030-0800 dump/langs.bson
2015-02-06T11:22:40.030-0800    going into namespace [dump.langs]
Restoring to dump.langs without dropping. Restored data will be inserted without raising errors; check your server log
file dump/langs.bson empty, skipping
2015-02-06T11:22:40.030-0800    Creating index: { key: { _id: 1 }, name: "_id_", ns: "dump.langs" }
2015-02-06T11:22:40.031-0800 dump/tweets.bson
2015-02-06T11:22:40.031-0800    going into namespace [dump.tweets]
Restoring to dump.tweets without dropping. Restored data will be inserted without raising errors; check your server log
     file size: 4877899
30597 objects found
2015-02-06T11:22:41.883-0800    Creating index: { key: { _id: 1 }, name: "_id_", ns: "dump.tweets" }

当我尝试访问数据时，它仍然是空的以及它在恢复之前的样子：

> show dbs
admin    (empty)
dump     0.078GB
local    0.078GB
tweets   (empty)
twitter  (empty)

它说它发现了30597个物体，它们去了哪里？

Answer 1

他们进入转储数据库，然后进入集合dump.tweets和dump.langs。文件包含在文件夹dump中的事实意味着mongorestore认为它们应该还原到数据库dump（从路径推断出来）。详细输出甚至明确指出数据被特定地放入dump.langs和dump.tweets。

如果您指定要还原到的数据库（使用-d）并还原特定文件，则可以将文档还原到所需的数据库。或者，您只需运行以下命令查看转储数据库：

use dump;
db.tweets.find();
db.langs.find();

从转储恢复后，MongoDB仍显示空集合

1 个答案: