very simple datastore reimplementation

Tomeu Vizoso tomeu at tomeuvizoso.net
Thu May 8 07:54:39 EDT 2008


On Thu, May 8, 2008 at 11:37 AM, Marco Pesenti Gritti
<mpgritti at gmail.com> wrote:
> On Thu, May 8, 2008 at 1:29 PM, Tomeu Vizoso <tomeu at tomeuvizoso.net> wrote:
>>
>> On Thu, May 8, 2008 at 11:20 AM, Marco Pesenti Gritti
>>  <mpgritti at gmail.com> wrote:
>>  > On Thu, May 8, 2008 at 12:58 PM, Tomeu Vizoso <tomeu at tomeuvizoso.net> wrote:
>>  >>  Yes, the title is currently stored in the metadata file next to the
>>  >>  actual file, so perhaps some ls-ds tool may be easily coded to present
>>  >>  the files with names based on their title?
>>  >
>>  > I think Jim point was that we need a way to be able to read files on a
>>  > system with no olpc specific tools installed.
>>
>>  I think we are talking about two different things here:
>>
>>  - How to interact with the DS (thus only in the XO) using standard
>>  tools. A FUSE plugin?
>>
>>  - How we can aid in debugging the internal structures of the DS.
>>  Again, only on the XO.
>>
>>  If the process of moving files from the XO to another machine involves
>>  the FUSE plugin, then files will come out from there with names based
>>  on their title.
>>
>>  What else is missing?
>
> The only thing which seem missing is a way to move the files to
> another system (in a readable way) when the datastore, and hence the
> FUSE plugin, are not working. Maybe that's something we can punt, not
> sure.

Well, as the metadata is now stored in a json file that is easily
read, we can use whatever tool to assign names to files based on their
metadata (title). That's one of the biggest advantages of the new
approach.

Thanks,

Tomeu


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