Re: [MirageOS-devel] Current persistent storage situation

[Thomas Leonard <talex5@xxxxxxxxx>]

On 29 November 2017 at 19:18, Sven Anderson <sven@xxxxxxxxxxx> wrote:
>
>> Am 28.11.2017 um 13:06 schrieb Anil Madhavapeddy <anil@xxxxxxxxxx>:
>>
>> For this usecase, you may also want to look at the Capnproto OCaml bindings,
>> since they provide a serializable capability RPC model that is probably
>> useful to tracking the provenance of keys as they flow through the system.
>>
>
> This looks interesting indeed! Would it make sense to write an 
> irmin-capnproto as an alternative to irmin-http?

Yes, this would be an ideal use for it! For anyone interested, there
is a tutorial here: https://github.com/mirage/capnp-rpc

> And wouldn’t that also be a good storage format for values then?

Yes. It might be slightly less compact than some other binary formats,
but it allows many backwards-compatible changes to the schema to be
made, which can be useful.

> Unfortunately irmin seems to only support text based values, not binaries, 
> because value types always require a string serializers.

OCaml strings are just byte-arrays anyway, so this might not matter
(I'm not sure; I'm still trying to upgrade my software from Irmin
0.10...).


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