https://swish.swi-prolog.org/ is down. No response when trying to visit the website. EDIT: after a long time waiting, I get a 504: [image]

Thanks. Restarted. Looks like a problem that happened before. I’ll see whether it is reproducible.

SWISH is down again. It shows exactly the same symptoms as @yochem experienced 11 days ago

In the meantime i went to cplint (for those not already familiar with it). /JCR

Unfortunately, some of my notebooks are only hosted on SWISH. Will have to find some old backups :wink:

It is back up. Sorry for the service interrupt.

This most recent outage may have been due to heavy traffic after Swish was featured on Hacker News .

SWISH is done again now, it has been for a few hours. Same symptoms as before, I eventually get a 504. cc: @jan

Restarted. Will investigate soon and hopefully find a more robust solution :frowning:

Did some more investigation: There was a write-after-free issue related to tabling and some people were playing with tabling. There was another write-after-use issue related to destroying the private predicates of a Pengine. The server runs a monitoring program that validates SWISH is still happil…

Swish is down

SWI-Prolog web site and services

richard.siddall January 15, 2023, 1:27am 16

https://swish2.swi-prolog.org/ is up. See Work on SWISH for more information.

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Swish is down

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