how to backup mongodb

collection data from the MongoDB, you need to use the MongoDB find () method. Pretty () methodThe results are shown in a format that can be used with the pretty () method. Limit () methodTo limit the records in MongoDB, you need to use the limit () method. The limit () method accepts a numeric parameter, which is the number of documents to display.Grammar: Th

1. Local backupCompile an automatic backup script:Vim/var/lib/mysql/autobakThe content is as follows:Copy codeThe Code is as follows:Cd/data/home/mysqlbakRq = 'date + % Y % m % d'/Usr/local/mysql/bin/mysqldump sqldb -- flush-logs-uroot-p123456 -- opt> 777city _ $ rq. SQLSave and exit. Chmod-777/var/lib/mysql/autobak Crontab-e00 00 ***/var/lib/mysql/autobakThe autobak script is automatically executed every morning./Etc/init. d/crontab restart Manually

1. Retain for seven days This setting only keeps backups for seven days. RMAN> connect target/ Connected to target database: DBSID (DBID = 3100778490) RMAN> configure retention policy to recovery window of 7 days; 2. Backup script Vi/root/rmanbak. sh #! /Bin/bash Su-oracle Rman target/ Backup as compressed backupset database Include current controlfile format '/orabak/db _ % d _ % T _ % s' P

1. Local backupCompile an automatic backup script:Vim/var/lib/mysql/autobakThe content is as follows: Copy codeThe Code is as follows: cd/data/home/mysqlbak Rq = 'date + % Y % m % d' /Usr/local/mysql/bin/mysqldump sqldb -- flush-logs-uroot-p123456 -- opt> 777city _ $ rq. SQL Save and exit. Chmod-777/var/lib/mysql/autobak Crontab-e00 00 ***/var/lib/mysql/autobakThe autobak script is automatically executed every morning./Etc/init. d/crontab restart Manu

Principles of MongoDB replica set (I) and principles of mongodb Replication References Official Website: www.mongodb.org Chinese community: www.mongoing.com Online Tutorial: https://university.mongodb.com/ Mongodb supports the traditional master-slave architecture. There is no automatic failover function. You must specify the master and slave. We recommend that y

Label:Building a MongoDB server1. Download MongoDB installation files, this example according to the Mongod version of 2.6.5 as the standard mongodb-linux-x86_64-2.6.5, after the 2.6 version of the permissions of MongoDB enhanced. This is my Baidu cloud mongodb2.6.5 linux64 bit of resources file, can be downloaded acco

modifer allows MongoDB to have a function similar to Redis, Memcached, and other KV features: Compared with MySQL, MonoDB is simpler and faster. Modifier is also a container that MongoDB can use to track user behavior. In practice, Modifier is used to quickly save user interaction behaviors to MongoDB for later statistical analysis and customization. High perfor

switched to DB stady > db.createcollection (' School ')//Create School collection {"OK": 1} > Db.school.insert ({"id": 1, "name": "Lisi", "Score": 90})//Insert data into the collection Writeresult ({"ninserted": 1}) > Db.school.fin D ()//view data in collection {"_id": ObjectId ("5b4843900edf47ef3aa006f3"), "id": 1, "name": "Lisi", "Score": > for (var i=2;iImport and export of data Exporting data in a library[[emailprotected] mongodb]#mongoe

Tags: MongoDB replica setWhat is a MongoDB replica set:A MongoDB replica set is a cluster of replicas consisting of a set of MongoDB servers. The cluster contains a primary master server and several secondary backup servers or Artiber election servers. Secondary synchronizes

Logical backup (Data migration):Backup in Logical StructureMove data across usersMoving databases across databasesSave the original data state for the testVersion upgrade of a databaseConsiderations for Logical Export:EXP program in the directory found the same name file will be directly overwritten, do not prompt!!Exp cannot back up empty table with no segmentsBe sure to note the character set when perform

Java client operations to implement read/write splitting of replica sets, we need to make corresponding settings on the java client. The following is the core code of the java client. Of course, first, what we need to do is download the corresponding mongodb java driver The above code is not a complete code. It is some of the core code. If you want to implement this, you can write it from a single server for read/write operations, the following is

The message "whether the local message password is lost or the chat record is backed up" is displayed. If yes, the message "saved on Q/msgbak/msgex_20090418163057.db" is displayed ". In this case, a file msgbak/msgex_20090418163057.db is generated after the backup (20090418163057 indicates the date on which the record is lost ), generally, it is stored in the msgbak folder (for example, C:/program files/qq2008 Pro/12345678/msgbak) of the QQ installati