MongoDB Data Backup Import Export

(1) MongoDB Export (Mongoexport).

You can run the command by running:./mongoexport--help

./mongoexport--help Options:--help produce help message-v [--verbose] being more verbose (include multiple times for more verbosity e.g.-vvvvv)--version print th 
                            E program's version and Exit-h [--host] arg MONGO host to connect to (<set name>/s1,s2 for Sets)--port ARG server port. Can also use--host hostname:port--ipv6 enable IPV6 support (disabled by default)-U [--username ] Arg username-p [--password] arg password--dbpath arg directly access Mongod database files In the given path, instead of connecting to a Mongod server-n  Eeds to lock the data directory, so cannot being used if a mongod is currently accessing the same 
Path--DIRECTORYPERDB If dbpath specified, each db was in a separate                            Directory--journal enable journaling-d [--db] arg database t o use-c [--collection] arg collection to use (some commands)-F [--fields] arg comma separated list of fi
  Eld names e.g.-f name,age--fieldfile arg file with fields Names-1 per line -Q [--query] arg query filter, as a JSON string--csv export to CSV instead of Json-o [ --out] arg output file; 
                            If not specified, stdout are used--jsonarray output to a JSON array rather than one object per 
                            line-k [--slaveok] arg (=1) use secondaries for export if available, default True

Parameter description.

For example, I export a table in a database.

./mongoexport-h 127.0.0.1--port 27017-d upload-c video_encode_history-u uts-p u.l7a@bj-f MID,CREATETIME,IMGHTTPP Ath-q ' {vtype: "1", status:30,imghttppath:{"$ne": null}} '--csv-o History.txt

(2) MongoDB Import Tool Mongodimport

Run the help command:./mongoimport--help

Options:--help produce help message-v [--verbose] being more verbose (include multiple times
  For more verbosity e.g-VVVVV)--version print the program's version and exit -h [--host] arg MONGO host to connect to (<set name>/s1,s2 for sets)--port arg server por  T. Can also use--host hostname:port--ipv6 enable IPV6 support (disabled by default)-U [--username ] Arg username-p [--password] arg password--dbpath arg directly access Mongod database files in th e given path, instead of connecting to a Mongod server-needs to L Ock The data directory, so cannot was used if a mongod is currently accessing the same path--               Directoryperdb if dbpath specified, each db was in a separate directory--journal Enable Journaling-d [--DB] arg database to use-c [--collection] arg collection to use (some commands)-F [--fields] Arg comma separated list of field names e.g.-f name,age--fieldfile arg file with field names-1 per Lin e--ignoreblanks if given, empty fields in CSV and TSV would be ignored--type arg type of file T  o Import. Default:json (JSON,CSV,TSV)--file arg file to import from; If not specified stdin is used--drop drop collection first--headerline csv,tsv only-u SE first line as headers--upsert insert or update objects that already exist--upsertfields ARG c omma-separated fields for the query part of the Upsert. Should make sure this is indexed--stoponerror stop importing at first error rather than continuing--JS Onarray load a JSON array, not one item per line. 
                         Currently Limited to 4MB. 

Export command:/usr/local/mongodb/bin/mongoimport--username=uts--password=password-h 127.0.0.1--port 27017-d upload-c C_clou D Video.json

Connect remotely to other MongoDB machines:

/usr/local/mongodb/bin/mongo--username=uts--PASSWORD=U.L7A@BJ Host:port/upload