migrate-mongo's Introduction

migrate-mongo

Migrate mongodb collections by streaming way,include data and indexes.

Features

Migrate mongo all data from db to db
Migrate mongo data from db to db by specified collections
Migrate mongo data include indexes, create indexes before inserting data
Batch inserting for migration
Interval between each single inserting

Install

go get -u github.com/Dongss/migrate-mongo

Usage

$ migrate-mongo --help

A Tool for data migrations between mongodb databases.
Migrations are by streaming way.
Complete documentation is available at https://github.com/Dongss/migrate-mongo

Usage:
  migrate-mongo [command]

Available Commands:
  cln         Migrate specified collections
  help        Help about any command
  version     Print the version of migrate-mongo

Flags:
  -h, --help   help for migrate-mongo

Use "migrate-mongo [command] --help" for more information about a command.

Migration options:

$ migrate-mongo help cln

Migrate specified collections

Usage:
  migrate-mongo cln <collections> [flags]

Flags:
      --all            Migrate all collections
  -b, --batch int32    Batch insert, count of each inserting (default 1)
  -d, --dst string     Destination mongodb uri (required) (default "mongodb://user:[email protected]/database2")
  -h, --help           help for cln
      --index          Include indexes, create indexes before inserting data
  -i, --interval int   Interval of each single insert, milliseconds
      --show-only      Only show details of source db collection, no migration operation
  -s, --src string     Source mongodb uri (required) (default "mongodb://user:[email protected]/database1")

Example

Overview:

migrate-mongo cln test log --src mongodb://u:[email protected]:27017/db1 --dst mongodb://u:[email protected]:27017/db2 --show-only

outputs:

Collection details: [test log]

Name: test
Count: 4
Indexes:
   _id_, userid_-1

Name: log
Count: 1548
Indexes:
   _id_

Migrate:

migrate-mongo cln test test2 --src mongodb://u:[email protected]:27017/db1 --dst mongodb://u:[email protected]:27017/db2

outputs:

Collection details: [test test2]

Name: test
Count: 4
Indexes:
   _id_, userid_-1

Name: test2
Count: 3
Indexes:
   _id_

Start migration:

Done: test 4/4, elapsed: 159ms
Done: test2 3/3, elapsed: 112ms