Can you elaborate on the load balancing that you've implemented which seems
to be causing the problem?  This might help figure out what's going on.

On Mon, Jul 25, 2016 at 8:56 AM Alex Rodriguez <a.rodriguez1...@gmail.com>
wrote:

> Dear Galaxy developers,
> I am interested in adding a download link to the “Download or Export
> Workflow” page of a workflow. I am able to add the link through the files
> in the templates directory and correctly add the necessary API functions in
> the lib/webapps/galaxy/controllers/workflow.py file.
> I wanted to ask for some help in figuring out what I might be missing when
> I try to download a file when I have load balancing feature activated. The
> page looks something like this:
> Download to FileDownload workflow to file so that it can be saved or
> imported into another Galaxy server.
> <https://dev.globusgenomics.org/u/arodri7/w/workflow-1-for-asms-2016-workshop-imported-from-uploaded-file-1/json-download>
>
> New Test Download ( test file)
> URL for Importing to Another GalaxyThis workflow must be accessible
> before it can be imported into another Galaxy.
> <https://dev.globusgenomics.org/workflow/sharing?id=a728237e0d32bb8c>
>
>
> As you can see I added the “New test Download” link.
> I have added and tested the function which gets me the information about
> the workflow I want correctly. For now it’s just a “hello world” string.
> When I don’t use load balancing I get the contents I want downloaded to
> the file correctly.
> However, when I activate load balancing, it only downloads an empty file.
> I can print the contents of the test download file to the galaxy log, but
> as I said nothing gets printed on the actual file.
>
> Is there some javascript code I also need to add for this functionality
> that I might be missing such that the download works with load balancing?
> As I mentioned I do get a proper download when load balancing is not
> activated. BTW, all other existing download links work properly with both
> load balancing and no load balancing.
>
> Thanks,
>
> Alex
>
>
>
>
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