IP 127.0.0.1 port number 27017 and backs up all data to the bin/dump/directory. The command output results are as follows:The list of optional parameters for the Mongodump command is as follows:
Grammar
Description
Example
Mongodump--host host_name--port port_number
This command will back up all MONGODB data
Mongodump--host w3cschool.cc--port 27017
Mongodump--dbpath Db_path--out backup
--headerline The first row is not imported because the first row is a column name--file indicates the file path to importAttention:CSV format is good, mainstream database support export to CSV format, so this format is very beneficial to heterogeneous data migrationData backup MongodumpUse Mongodump to make a library or table-level backup of MongoDBBacking Up the Wxdata database/test/mongodb/bin/mongodump-d WxdataConnected to:127.0.0.1Database:wxdata
Tags: BSP specify drop DB instance on server DBN Port Delete ServiceMongoDB Data BackupIn MongoDB we use the Mongodump command to back up MongoDB data. The command can export all data to the specified directory.The Mongodump command allows you to specify the server to which the exported data can be dumped by parameter.GrammarThe mongodump command script syntax is as follows:>mongodump-h dbhost-d Dbname-o db
MongoDB Data BackupIn MongoDB we use the Mongodump command to back up MongoDB data. The command can export all data to the specified directory.The Mongodump command allows you to specify the server to which the exported data can be dumped by parameter.GrammarThe mongodump command script syntax is as follows:>mongodump-h dbhost-d Dbname-o dbdirectory
-H:M
When dealing with databases, it is inevitable that data backup and recovery will occur. The following are the instructions used. I will leave them here for the time being. Data backup: E: mongodb-win32-x86_64-2.2.1binmongodump.exe -- dbCpsCommodityInfoE: mongo30329 data recovery: E: mongodb-win32-x86_64-2.2.1binmongore
Mongodb IntroductionDocument Type DatabaseThe C + + language, Distributed file storage open source database system, belongs to NoSQLIn the case of high load, more nodes can be added to ensure the performance of the serverProvide scalable, high-performance data storage solutions for Web applications.Stores data as a document, data structures consist of key-value pairs, and MongoDB documents resemble JSON obj
MONGODB data
Mongodump--host w3cschool.cc--port 27017
Mongodump--dbpath Db_path--out backup_directory
Mongodump--dbpath/data/db/--out/data/backup/
Mongodump--collection Collection--db db_name
The command backs up a collection of the specified databases.
Mongodump--collection mycol--db test
MongoDB Data RecoveryMongoDB uses the Mongorerstore
MongoDB service with IP 127.0.0.1 port number 27017 and backs up all data to the bin/dump/directory. The command output results are as follows:The list of optional parameters for the Mongodump command is as follows:
Grammar
Description
Example
Mongodump--host host_name--port port_number
This command will back up all MONGODB data
Mongodump--host w3cschool.c
Label:MongoDB database maintenance is inseparable from the necessary backup, recovery operations, and generally does not go wrong, so we use the most of the time using backup and recovery operations.
The principle of mongodump.exe backup is to get the current server snapshot through a single query and write the snapshot to disk, so this method is not saved in real time, because after the snapshot is taken,
Mongodb databases are also inseparable from necessary maintenance, such as backup, recovery, import, and export.
In fact, backup and recovery are easier to import and export than normal, so most of the time you can use backup and recovery operations.
1. Back up Mongodb
Ex
When dealing with databases, it is inevitable that data backup and recovery will occur. The following are the instructions used. I will leave them here for the time being.
Data backup:
E: \ mongodb-win32-x86_64-2.2.1 \ bin> export dump.exe -- db CpsCommodityInfo E: \ tables 20130329
Data Recovery:
E: \ mongodb-wi
It's written in front.
This article has already assumed that you have installed the MongoDB (2.6) and has opened the auth.
User
First we add the users needed to back up and recover the data, and this user needs to have ReadWrite and Useradmin permissions
Copy Code code as follows:
$ MONGO
$ use admin
$ db.auth ("admin", "youradminpasswd");
$ use backupdb
$ db.adduser ({User: "Backup", pwd: "passwd", Roles: ["ReadWrite", "User
/mongorestore-d Test--directoryperdb dump/test/(backup directory at Mongodump)Binary backup that not only backs up data, but also backs up indexes,Backup data is relatively small.Example: Backup and recovery of single table1.dump Tea Table1 1234 -D test-c Tea2. View the dump file1 # ll dump/Test2831151 May 10 :panax notoginseng tea.bson41179 May :Panax Notoginseng Tea.metadata.json3. Delete Tea table1 > db.tea.drop (); 2 true 3 > show Tables 4ani
Label:1. Data backup: Mongodump-h dbhost-d Dbname-o dbdirectory Parameter description: -H:mongdb server address, for example:127.0.0.1, of course, you can specify the port number:127.0.0.1:27017 -D: The database instance that needs to be backed up, for example:test -o: The data storage location of the backup, for example:c:\data\dump, of course, the directory needs to be established in advance, after the backup is completed, the system automatically in the dump directory to establish a Test Dire
MongoDB provides backup and restore capabilities, Mongodump.exe and Mongorestore.exe files in the MongoDB download directory, respectively.1. Back up your data using the following command:>mongodump-h dbhost-d Dbname-o dbdirectory-H:MONGDB the server address, for example: 127.0.0.1, you can also specify the port number: 127.0.0.1:27017-D: The database instance that needs to be backed up, for example: test-O
A properly configured Mongodb sharding cluster does not have a single point of failure.This article describes several potential node failure scenarios in a sharded cluster and how Mongodb handles these node faults.1. Mongos node downA Mongos process should run on each application server, which should exclusively occupy the Mongos process and communicate with the sharded cluster through it.Mongos processes a
Note: In the backup file directory selection, there is a condition that the file directory, no matter how deep, can only have one file, (that is, except for the backup file can only exist folder, this condition constrains its entire directory tree)Data backup:/mongodump--host 127.0.0.1:27017-d lanzhoudb-o/data/mongodb/data/--directoryperdbWhere:--host 127.0.0.1:27017 as host port-D Panodb for the database to be backed up-o/data/
Tags: res export database bat. exe start mongodump data exe Store1. Export Database/backup: @echo off
F:
cd F:\software1\mongdb\mongodb-win32-x86_64-3.0. 0 \
Bin 127.0. 0.1:27017 -D db-o F:\software1\mongdb Do not explain, modify the path information can be used directly; 2. Restore the backed up database: @echo off
F:
cd F:\software1\mongdb\mongodb-win32-x86_64-3.0. 0 \
Bin 127.0. 0.1:27017 -D db_store--di
The principle of mongodump.exe backup is to get the current server snapshot through a single query. The snapshot is written to disk, so it is not stored in real time, because the server will have data writes after the snapshot is taken, and in order to secure the backup, we can also use the Fsync lock to temporarily write the server data to the cache.
Efficient open source database (mongodb) Download address: http://www.jb51.net/softs/41751.html
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