On Wed, May 13, 2015 at 9:51 PM, Jody Garnett <[email protected]>
wrote:
> Sorry that was my assumption:
> - sometimes an import applies to more than one file (say in a directory)
> - The result of processing may result in multiple files out of a single
> raster (say if tiling was used match the block size of the distributed file
> system).
>
> I was more interested in the async workflow in case processing takes some
> time (regardless of where it is importing from).
>
Yep, and the importer uses asynch by default on the gui, and you can make
it go asynch in the REST case.
What's annoying, is that the REST setup workflow has the synch
upload/config part, because you post a request or a file
to the task list, and it will generate the tasks for you. Handy, but that
bit is synch, so it kind of stifles the idea of
an up-front setup and then have also the transfer work in a aysnch (which
is kind of mandatory for very large files).
In my use case that's not a killer, because over modern networks you can
transfer lots of data fast, but
if we think ftp, it will be limited to small-ish files or local networks,
because the post request that creates
the import is synch, and you cannot launch the import until you have the
ImportData and its task ready
(and only the run will be executed asynch).
An issue to be solved another day I guess (it will require some refactor of
both the core code, the REST module,
and the REST api workflow itself).
Cheers
Andrea
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