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MongoDB副本设置为独立备份和还原

[英]MongoDB replica set to stand alone backup and restore

原文 2013-06-22 20:39:28 8 1 mongodb/ backup/ replication/ mongodump/ mongorestore

For development reasons, I need to backup a production replica set mongodb and restore it on a stand alone, different machine test instance. 出于开发原因，我需要备份生产副本集mongodb并将其还原到独立的其他机器测试实例上。

Some docs are talking about the opposite ( standalone 2 replica-set ), but I cannot find his downgrade/rollback way. 一些文档正在谈论相反的内容（独立的2个副本集），但是我找不到他的降级/回滚方式。

What's the way to go, in this case ? 在这种情况下，要走的路是什么？

1 个解决方案

No matter how many nodes you have in a replica set, each of them holds the same data. 无论副本集中有多少个节点，每个节点都保存相同的数据。

So getting the data is easy - just use mongodump (preferably against the secondary, for performance reasons) and then mongorestore into a new mongod for your development stand-alone system. 因此，获取数据非常容易-只需使用mongodump （出于性能方面的考虑，最好使用mongodump ），然后将mongorestore到用于开发独立系统的新mongod中。

mongodump does not pick up any replication related collections (they live in database called local ). mongodump 不拿起任何复制有关的收藏品（他们住在数据库中调用local ）。 If you end up taking a file system snapshot of a replica node rather than using mongodump , be sure to drop the local database when you restore the snapshot into your production stand-alone server and then restart mongod so that it will properly detect that it is not part of a replica set. 如果最终要拍摄副本节点的文件系统快照而不是使用mongodump ，请确保在将快照还原到生产独立服务器中时删除local数据库，然后重新启动mongod以便它将正确检测到它是不属于副本集。