Customizable libmongoc driver version

[baumgold]

Upon the recent release of MongoC_jll.jl v1.25.1+1 (a major version bump) my client code that uses Mongoc.jl automatically picked up the new MongoC_jll.jl (as expected). However this caused my previously working code to break with the following error:

ERROR: LoadError: BSONError: domain=3, code=15, message=Server at mongo-server:27017 reports wire version 4, but this version of libmongoc requires at least 6 (MongoDB 3.6)
Stacktrace:
  [1] _iterate(cursor::Mongoc.Cursor{Mongoc.Collection}, state::Nothing)
    @ Mongoc ~/.julia/packages/Mongoc/tJNDW/src/collection.jl:690
  [2] iterate (repeats 2 times)
    @ ~/.julia/packages/Mongoc/tJNDW/src/collection.jl:698 [inlined]
  [3] iterate
    @ ./generator.jl:44 [inlined]

How can I explicitly specify the libmongoc driver version that I want to use in my client code? Suggestions appreciated.

[felipenoris]

@baumgold thanks for reporting this! This is really bad, actually.

As a workaround, you can add this to the [compat] section of your Project.toml file to use the previous version for the driver:

MongoC_jll = "=1.19.1"

Can you give more detail on your error? (code example, mongodb server version, operating system, Julia version).

[baumgold]

Using Mongoc v0.9.0 and MongoC_jll v1.25.1+0:

julia> versioninfo()
Julia Version 1.9.4
Commit 8e5136fa297 (2023-11-14 08:46 UTC)
Build Info:
  Official https://julialang.org/ release
Platform Info:
  OS: Linux (x86_64-linux-gnu)
  CPU: 48 × Intel(R) Xeon(R) Gold 6136 CPU @ 3.00GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-14.0.6 (ORCJIT, skylake-avx512)
  Threads: 4 on 48 virtual cores
Environment:
  JULIA_NUM_THREADS = 4

julia> using Mongoc

julia> client = Mongoc.Client("mongo-hedge-solicitor-prod", 27017)

julia> Mongoc.find_one(client["hedge-solicitor"]["hedge-notifications"])
ERROR: BSONError: domain=3, code=15, message=Server at mongo-hedge-solicitor-prod:27017 reports wire version 4, but this version of libmongoc requires at least 6 (MongoDB 3.6)
Stacktrace:
 [1] _iterate(cursor::Mongoc.Cursor{Mongoc.Collection}, state::Nothing)
   @ Mongoc ~/.julia/packages/Mongoc/tJNDW/src/collection.jl:690
 [2] _iterate
   @ ~/.julia/packages/Mongoc/tJNDW/src/collection.jl:680 [inlined]
 [3] #find_one#62
   @ ~/.julia/packages/Mongoc/tJNDW/src/collection.jl:332 [inlined]
 [4] find_one
   @ ~/.julia/packages/Mongoc/tJNDW/src/collection.jl:327 [inlined]
 [5] find_one(collection::Mongoc.Collection)
   @ Mongoc ~/.julia/packages/Mongoc/tJNDW/src/collection.jl:327
 [6] top-level scope
   @ REPL[3]:1

julia> Mongoc.get_server_mongodb_version(client)
ERROR: BSONError: domain=3, code=15, message=Server at mongo-hedge-solicitor-prod:27017 reports wire version 4, but this version of libmongoc requires at least 6 (MongoDB 3.6)
Stacktrace:
 [1] command_simple
   @ ~/.julia/packages/Mongoc/tJNDW/src/database.jl:33 [inlined]
 [2] get_server_mongodb_version(client::Mongoc.Client{Nothing})
   @ Mongoc ~/.julia/packages/Mongoc/tJNDW/src/client.jl:79
 [3] top-level scope
   @ REPL[8]:1

After downgrading MongoC_jll to v1.19.1+0:

julia> using Mongoc

julia> Mongoc.get_server_mongodb_version(Mongoc.Client("mongo-hedge-solicitor-prod", 27017))
v"3.2.22"

[baumgold]

@felipenoris - anything I can do to help here? Thanks.