Persistent "No such file or directory" Error After Restarting Batch Download

[Prince Pantino]

Hello HCP-Users community,

I am seeking help with a persistent issue I'm facing while downloading the "Retinotopy Task fMRI 2mm/32k FIX-Denoised (Compact)" package using the Aspera client.

The download repeatedly fails with a "No such file or directory" error. The error log specifically names certain subjects, such as 131217 and 550439, as the source of the failure (a screenshot of the error is attached).

Believing it was a standard corrupted session, I followed the recommended procedure: I completely stopped the transfer, deleted all partial .zip and temporary .aspx files, and then restarted the entire package download from the beginning.

Unfortunately, after running for several hours, the download failed again with the exact same type of error.

Since a clean restart of the entire download did not solve the problem, I'm hoping someone here might have more advanced suggestions.

• Has anyone encountered a situation where this error persists even after restarting the download?

• Could this point to a potential server-side issue with these specific files, or is it more likely a local Aspera configuration problem?

• Are there any specific Aspera settings (e.g., transfer policy, datagram size, or rate limits) that are known to improve the stability of these very large batch downloads?

I am also reporting this to the official HCP support team, but I wanted to leverage the community's experience in case this is a known issue with a specific solution.

Thank you for your help,

Prince Isaac Pantino

[Elam, Jennifer]

Hi Prince Issac,

Did the error message specify the same subjects every time you tried? Both those subjects should have the Retinotopy Task fMRI 2mm/32k FIX-Denoised (Compact) package. Were you able to download the packages for other subjects? You can use the filters on the Subject Dashboard in ConnectomeDB to select individual/some subjects with 7T data and see if that is successful.

I also can’t download these packages and it looks like it’s a problem with the availability of the zip archive itself rather than an Aspera setting issue:

We will look into what is going on, but in the meantime I also suggest you getting the data from our Amazon S3 bucket, see https://wiki.humanconnectome.org/docs/How%20To%20Connect%20to%20Connectome%20Data%20via%20AWS.html

Best,

Jenn

________________________________________

Jennifer Elam, Ph.D.
Scientific Outreach, Human Connectome Project
Washington University School of Medicine
el...@wustl.edu
www.humanconnectome.org

 

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[prasanna vijayaragavan]

I would like to report a similar issue. I am trying to download  HCP-Young Adult 2025 MEG dataset. I also get the same error of directory not found repeatedly. 

I get the same error when I tried the test file from Aspera Connect. 

[Tim Coalson]

The issue in the previous post was that a few subjects were missing the expected zip file on our side.  Here it appears that you may be getting this error for all subjects.  I also see "test_file" in your Aspera window with a similar-looking error, presumably from IBM's Aspera testing website.  If you didn't successfully download test_file either, you may have configured Aspera to put its outputs into a folder that doesn't exist, or that you don't have write permissions for, and that could be the source of your errors.  It looks like it tried to write test_file to the root folder of your filesystem.

Tim

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[prasanna vijayaragavan]

Thank you. It was a permission issue, I downloaded the test file to my desktop and it worked. 

Prasanna