[keflavich]

The mirrors weren't well-exposed in the docs or even in the API before; minor addition there shows them in the docs and how to access them.

I also added a mirror-checker script to do a minimal HEAD request to find the fastest responder when mirrors are needed.

Right now, none are responding to me.

@ManonMarchand I know you left... just in time apparently.... but can you refer me to who I should be @'ing on this thread from CDS? I hope there's someone who can help out who is not currently running around on fire.

(claude sonnet wrote this the code; I wrote the comment, I told it what to do, it met my expectations)

[keflavich]

I intentionally set a very short timeout

[ManonMarchand]

Yes, perfect

[keflavich]

we should be doing this generally, otherwise it's a pain to access this list programatically

[ManonMarchand]

Yes! I changed it in SIMBAD but not in VizieR

[codecov]

Codecov Report

❌ Patch coverage is 32.55814% with 29 lines in your changes missing coverage. Please review.
✅ Project coverage is 73.86%. Comparing base (c41a46a) to head (a3a96d5).
⚠️ Report is 26 commits behind head on main.

Files with missing lines	Patch %	Lines
astroquery/utils/commons.py	5.55%	17 Missing ⚠️
astroquery/simbad/core.py	50.00%	6 Missing ⚠️
astroquery/vizier/core.py	45.45%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3701      +/-   ##
==========================================
- Coverage   73.86%   73.86%   -0.01%     
==========================================
  Files         228      228              
  Lines       21475    21613     +138     
==========================================
+ Hits        15863    15964     +101     
- Misses       5612     5649      +37     

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[ManonMarchand]

I'm still there til January. Thank you for this, I'll have a proper look tomorrow

[bsipocz]

@keflavich - please add labels next time :)

[aoberto]

The simbad mirror @harvard should be working, let me know if there are issues.

[ManonMarchand]

Thank you so much for taking the time to do this! Looks good to me, with the updates to the mirrors list.

I'll do a follow up PR (documentation only) with the list of which mirrors are complete or partial in the next hours.

[keflavich]

The vizier mirrors weren't working for me yesterday - should they all be?

SESAME has not stopped working; I don't know what mirrors it defaults to.

[ManonMarchand]

They should be, except the indian one (vizier.iucaa.ernet.in) which is down temporarily.

You might have switched to harvard.cfa for SESAME ? It's the only one up right now

[keflavich]

looks like coordinates.from_name (which uses SESAME) checks all of them, so yes, it must go to cfa.
https://github.com/astropy/astropy/blob/main/astropy/coordinates/name_resolve.py#L45

I'm still getting timeouts on most servers, e.g.:

from astroquery.vizier import Vizier

viz = Vizier(vizier_server='vizier.cfa.harvard.edu')

viz.query_object('Algol')

is that working for you @ManonMarchand ?

[keflavich]

ah, rather, for cfa:

HTTPError: 502 Server Error: Bad Gateway for url: https://vizier.cfa.harvard.edu/viz-bin/votable

while for idia:

ReadTimeout: HTTPSConnectionPool(host='vizier.idia.ac.za', port=443): Read timed out. (read timeout=5)

[ManonMarchand]

Yes, harvard was ddos by bots, the team is working to pull it back up (minutes ago). IDIA should work but query_object is one of the most calculation consuming tasks, and the server there looks either slower or overcrowded. You can try to increase your timeout or to test with find_catalogs instead.

The mirrors have a huge load to absorb right now, as the main traffic usually goes to Strasbourg

PS: there should be a new SESAME mirror at idia in the next hours