oplog-dump
A binary that dumps the oplog from MongoDB.
This has some advantages over a direct mongodump command:
- Its interface is designed specifically for creating oplog dumps for a certain point in time.
- It can be used in conjunction with https://github.com/Clever/mongo-op-throttler to run Mongo operations on multiple databases.
Usage
Build Oplog Dump and put it in your GOPATH with:
go get github.com/Clever/oplog-dump/cmd
Run it as follows:
oplog-dump --dir /tmp/out
Params: -path="/dev/stdout": The path to write the dump to -mongoUrl="localhost": The URL to dump from -unixTime=0: Grab all oplog entries greater than or equal to this timestamp -query="": (Optional) grab all oplog entries satisfying the query
The query should be a Mongo query, for example the query '{ ns : { $ne : "database.cooldocs" } }' would retrieve everything in database database outside of the cooldocs collection, while '{ ns : "database.cooldocs" }' would grab exactly the cooldocs collection. Take a look at the oplog collection to see the structure of ops.
Vendoring
Please view the dev-handbook for instructions.