Mongodb Bulk operation support

[sourav11b]

nosqlbench mongodb driver should be able to support bulk operation https://www.mongodb.com/docs/manual/reference/method/js-bulk/

Yes, many application require order and unordered bulk operations with a mix of insert, updates and deletes

*yes. i can push code

Additional context

[msmygit]

Hi @sourav11b 👋🏼

We have implemented the generic runCommand style support with the MongoDB Adaptor and hence you could already run bulk operations such as the following example in your workload as follows:

db.runCommand({
  bulkWrite: "<collection>",
  requests: [
    { insertOne: { document: { name: "John Doe", age: 25 } } },
    { updateOne: { filter: { name: "Jane Doe" }, update: { $inc: { age: 1 } } } },
    { deleteOne: { filter: { name: "Jim Doe" } } }
  ]
})

and in your workload, you could something such as below,

{
  bulkWrite: "<collection>",
  requests: [
    { insertOne: { document: { name: "John Doe", age: 25 } } },
    { updateOne: { filter: { name: "Jane Doe" }, update: { $inc: { age: 1 } } } },
    { deleteOne: { filter: { name: "Jim Doe" } } }
  ]
}

[sourav11b]

bulkWrite is not working with runCommand

rs0 [direct: primary] test> use test_batch
switched to db test_batch
rs0 [direct: primary] test_batch> db.runCommand({
...   : "test_bulk",
...   requests: [
...     { insertOne: { document: { name: "John Doe", age: 25 } } },
...     { updateOne: { filter: { name: "Jane Doe" }, update: { $inc: { age: 1 } } } },
...     { deleteOne: { filter: { name: "Jim Doe" } } }
...   ]
... })
MongoServerError: Unknown admin command bulkWrite

[sourav11b]

this the mongodb documentation for supported commands

https://www.mongodb.com/docs/manual/reference/command/#std-label-database-commands

[jshook]

The MongoDB drivers have changed significantly since we first introduced this adapter. Specifically, the underlying wire-protocol and BSON types have been effectively removed from circulation as they originally were documented. We'll likely be adding driver updates here to fit the current driver standards before adding any more features.
The original driver adapter did leave room for this with little effort. I believe only the common usage patterns and builders need to be added for the op types, mapper, and dispensers.