Annoying Gem::RemoteFetcher::UnknownHostError Failure

Neo · November 30, 2020, 4:52am

Strange:

From time to time, a Discourse rebuild fails because of this error (happened a few minutes ago, again):

I, [2020-11-30T04:36:02.650422 #1]  INFO -- : > cd /var/www/discourse && gem update bundler
ERROR:  While executing gem ... (Gem::RemoteFetcher::UnknownHostError)
    timed out (https://rubygems.org/specs.4.8.gz)
I, [2020-11-30T04:37:02.895072 #1]  INFO -- :

Rerun the build and all is OK

Neo · November 30, 2020, 5:20am

Neo:

, [2020-11-30T04:36:02.650422 #1]  INFO -- : > cd /var/www/discourse && gem update bundler
ERROR:  While executing gem ... (Gem::RemoteFetcher::UnknownHostError)
    timed out (https://rubygems.org/specs.4.8.gz)
I, [2020-11-30T04:37:02.895072 #1]  INFO -- :

Seems we are not the only ones seeing this issue:

https://groups.google.com/g/rubygems-org/c/DQd6TDMyi4o

I checked the TTL and the TTL for this hostname is 600 seconds.

My "first guess" is that this issue is a DNS problem based on the short TTL.