Docker-alpine: 503 Backend is unhealthy

[cyrilfr]

Step 2/15 : RUN apk --update add bash
---> Running in b46c1ce6a802
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/community/x86_64/APKINDEX.tar.gz
ERROR: http://dl-cdn.alpinelinux.org/alpine/v3.7/main: temporary error (try again later)
WARNING: Ignoring APKINDEX.70c88391.tar.gz: No such file or directory
ERROR: http://dl-cdn.alpinelinux.org/alpine/v3.7/community: temporary error (try again later)
WARNING: Ignoring APKINDEX.5022a8a2.tar.gz: No such file or directory

[cilindrox]

Same here with several other packages (tini, python, make). Seems like an issue with the CDN?

[cilindrox]

This seems to be a dupe of #386

[cicdteam]

the same for me

curl -v -s http://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz -o /dev/null -I
*   Trying 151.101.112.249...
* Connected to dl-cdn.alpinelinux.org (151.101.112.249) port 80 (#0)
> HEAD /alpine/edge/main/x86_64/APKINDEX.tar.gz HTTP/1.1
> Host: dl-cdn.alpinelinux.org
> User-Agent: curl/7.47.0
> Accept: */*
>
< HTTP/1.1 503 Backend is unhealthy
< Server: Varnish
< Retry-After: 0
< Content-Type: text/html; charset=utf-8
< Content-Length: 454
< Accept-Ranges: bytes
< Date: Mon, 19 Mar 2018 13:45:38 GMT
< Via: 1.1 varnish
< Connection: close
< X-Served-By: cache-hhn1524-HHN
< X-Cache: MISS
< X-Cache-Hits: 0
< X-Timer: S1521467138.045334,VS0,VE0
<
* Closing connection 0

[cyrilfr]

And #351

[bat-cha]

it's back up for me...

[maishsk]

Same here

[wsantos]

Confirmed, it's back.

[maprager]

and me - back up:

curl -v -s http://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz -o /dev/null -I

• Trying 151.101.0.249...
• TCP_NODELAY set
• Connected to dl-cdn.alpinelinux.org (151.101.0.249) port 80 (#0)

HEAD /alpine/edge/main/x86_64/APKINDEX.tar.gz HTTP/1.1
Host: dl-cdn.alpinelinux.org
User-Agent: curl/7.55.1
Accept: /

< HTTP/1.1 200 OK
< Server: nginx
< ETag: "5aafb378-bf941"
< Accept-Ranges: bytes
< Accept-Ranges: bytes
< Date: Mon, 19 Mar 2018 13:52:17 GMT
< X-Served-By: cache-fra19137-FRA
< X-Cache: MISS
< X-Cache-Hits: 0
< X-Timer: S1521467538.675278,VS0,VE42
< Content-Length: 784705
< Content-Type: application/octet-stream
< Last-Modified: Mon, 19 Mar 2018 12:56:24 GMT
< Via: ....
< Connection: keep-alive
<

• Connection #0 to host dl-cdn.alpinelinux.org left intact

[cyrilfr]

Still down for me.

[siebertm]

still flaky. sometimes requests go through, sometimes they don't.

[MarienLbc]

Same as @cyrilfr but i'm on v3.6

[brejnko]

Before was 503 Backend is unhealthy now I get 503 Connection timed out.

[jangia]

Down for me too

[AndriiHryshaienko]

Looks like its working now.

[MarienLbc]

Seems ok too !

[chrisweeksnz]

Seems like the cdn availability is extremely variable :\

Down again at the moment.

[jangia]

It's down again

[Adrian-Turjak]

Down again.

$ curl -v http://dl-cdn.alpinelinux.org/alpine/v3.4/main/x86_64/APKINDEX.tar.gz > /dev/null
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0*   Trying 151.101.164.249...
* TCP_NODELAY set
* Connected to dl-cdn.alpinelinux.org (151.101.164.249) port 80 (#0)
> GET /alpine/v3.4/main/x86_64/APKINDEX.tar.gz HTTP/1.1
> Host: dl-cdn.alpinelinux.org
> User-Agent: curl/7.59.0
> Accept: */*
> 
< HTTP/1.1 503 Backend is unhealthy
< Server: Varnish
< Retry-After: 0
< Content-Type: text/html; charset=utf-8
< Content-Length: 454
< Accept-Ranges: bytes
< Date: Mon, 30 Apr 2018 00:19:12 GMT
< Via: 1.1 varnish
< Connection: close
< X-Served-By: cache-akl1421-AKL
< X-Cache: MISS
< X-Cache-Hits: 0
< X-Timer: S1525047552.345876,VS0,VE0
< 
{ [454 bytes data]
100   454  100   454    0     0   8254      0 --:--:-- --:--:-- --:--:--  8254
* Closing connection 0

[ncopa]

we have replaced the dl-cdn backend to something we believe will be more stable. We have in addition also configure a failover that will take over if backend is unavailable.

[jovanimp]

Hi all,
I get the same error now
Error 503 Backend is unhealthy
Backend is unhealthy
Guru Mediation:
Details: cache-ams4128-AMS 1530767897 492878393

Varnish cache server

[radiocity]

Looks like the github problem (githubusercontent.com)

Updated an hour ago: We're investigating reports of intermittent connection failures.
Check our status site and @githubstatus on Twitter for updates.