mongo备份恢复

最新推荐文章于 2024-11-02 01:58:05 发布

转载最新推荐文章于 2024-11-02 01:58:05 发布 · 170 阅读

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原文链接：http://www.cnblogs.com/geek-ace/p/7692999.html

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#数据库

本文介绍了MongoDB中几种常见的备份与恢复方法，包括使用mongoexport与mongoimport进行数据导出导入，使用mongodump与mongorestore进行数据库的完全备份与恢复，以及Percona Server for MongoDB支持的在线热备份技术createBackup命令。

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1.mongoexport 与mongoimport

export

mongoexport --host "localhost:27017" --username="user" --password="xxxx" --authenticationDatabase=testdb --db=testdb --collection=testc --out /back/testc.josn

import

mongoimport --host "localhost:27017" --username="user" --password="xxxx" --authenticationDatabase=testdb --db=testdb_v3 --collection=testc --file /back/testc.josn

2.mongodump与mongostore

mongodump -h "localhost:port" --username="user" --password="pwd" --authenticationDatabase=authdb -d dbname -o /root/back

restory
mongorestore -h "localhost:port" --username="user" --password="pwd" --authenticationDatabase=authdb -d dbname --dir /root/back/fission_balance/

3.hot backup -- Percona Server for MongoDB支持，社区版本不支持

Percona Server for MongoDB includes an integrated open-source hot backup system for the default WiredTiger and
alternative MongoRocks storage engine. It creates a physical data backup on a running server without notable performance
and operating degradation.
To take a hot backup of the database in your current dbpath, run the createBackup command as administrator
on the admin database and specify the backup directory.

1 > use admin
2 switched to db admin
3 > db.runCommand({createBackup: 1, backupDir: "/my/backup/data/path"})
4 { "ok" : 1 }

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If the backup was successful, you should receive an { "ok" : 1 } object. If there was an error, you will receive
a failing ok status with the error message, for example:

1 > db.runCommand({createBackup: 1, backupDir: ""})
2 { "ok" : 0, "errmsg" : "Destination path must be absolute" }

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备份恢复相关参考博客

MongoDB在线热备神器-createBackup

从炉石传说数据库故障谈谈MongoDB的数据库备份和恢复手段

Mongodump的archive（归档）模式原理解析

转载于:https://www.cnblogs.com/geek-ace/p/7692999.html