Hi Ben,

After discussing with my team, the general feeling is that keeping protobuf would be a preferred choice. The reason, as i stated earlier, is that proto provides a better standardized description of the API than JSON and also we could create data model rather quickly for bindings/tools written in other languages. We have already generated the go-spdk based upon the proto model for OpenSDS's interaction with SPDK drivers. It provides benefits at least judging from our own practice.

Frankly given gRPC's wide adoption I don't think this should be a big issue. If you still have doubt about this, I think maybe we could setup a conf call, or I could discuss with Harris when he's in China for SPDK summit.

For repo, I think it is entirely up to the community's decision on whether maintain it in the main repo or creating a new one.

On Sat, Jan 27, 2018 at 6:28 AM, Walker, Benjamin <benjamin.walker@intel.com> wrote:
On Wed, 2018-01-24 at 07:13 +0800, Zhipeng Huang wrote:
> Do we have a conclusion on this issue ? If it is ok to have a spdk/sdk repo,
> then wewe will modify the current patch (get rid of protobuff) and resubmit
> the patch to the new repo once it is established (meanwhile abandon the
> current one to spdk/spdk).

If you remove protobuf, can you describe what is left? Recently scripts/rpc.py
was refactored to break it up into a set of Python libraries in scripts/rpc,
plus the command line tool at scripts/rpc.py. What functionality does this new
code provide over and above what is already present there?

SPDK is certainly in need of better management tools, so in the most general
sense the community is very supportive of your effort here. New management tools
can also go directly into the main spdk repository (a separate repository was
only suggested when we thought this was a Python binding to the SPDK libraries).
I'm wondering if an easier way forward would be to continue refining the Python
packages in scripts/rpc to be more general purpose libraries for sending the
JSON RPCs. What are your thoughts on that?
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Zhipeng (Howard) Huang

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