Server error 500 on several modules

vasturiano commented 5 years ago

Currently experiencing 500 errors on various modules:

<html><head>
<meta http-equiv="content-type" content="text/html;charset=utf-8">
<title>500 Server Error</title>
</head>
<body text=#000000 bgcolor=#ffffff>
<h1>Error: Server Error</h1>
<h2>The server encountered an error and could not complete your request.<p>Please try again in 30 seconds.</h2>
<h2></h2>
</body></html>

For example: https://unpkg.com/chroma https://unpkg.com/topojson https://unpkg.com/d3-scale https://unpkg.com/d3-geo https://unpkg.com/polished ...

Any idea of what the issue may be?

GordonSmith commented 5 years ago

Quick me too.

j-f1 commented 5 years ago

Seems like it might be fixed?

davidwhthomas commented 5 years ago

Same issue here:

curl -I https://unpkg.com/draggabilly@2.2.0/dist/draggabilly.pkgd.js
HTTP/2 500 
date: Thu, 27 Jun 2019 01:59:24 GMT
content-type: text/html; charset=UTF-8
content-length: 323
x-cloud-trace-context: 9f38bd082b35a564dbcf98f3741a6a32
cf-cache-status: MISS
strict-transport-security: max-age=31536000; includeSubDomains; preload
x-content-type-options: nosniff
expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
server: cloudflare

Update: unfortunately this was causing some problematic errors in production for us. As no quick resolution, we've switched to using a different CDN.

therefromhere commented 5 years ago

Possibly related, redirect to latest version took 10 seconds:

time curl -I 'https://unpkg.com/swagger-ui-dist@3/swagger-ui-bundle.js'
HTTP/2 302 
date: Thu, 27 Jun 2019 03:22:16 GMT
content-type: text/plain; charset=utf-8
content-length: 66
access-control-allow-origin: *
cache-control: public, s-maxage=14400, max-age=3600
location: /swagger-ui-dist@3.22.3/swagger-ui-bundle.js
vary: Accept
x-cloud-trace-context: 467eb7000b805ebdcab5bae142f7a46e
cf-cache-status: STALE
age: 20673
strict-transport-security: max-age=31536000; includeSubDomains; preload
x-content-type-options: nosniff
expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
server: cloudflare
cf-ray: 4ed44b67ba2da433-AKL

real    0m10.833s
user    0m0.050s
sys 0m0.004s

Loading the specific version works instantly though.

or-else commented 5 years ago

Still broken:

curl -I https://unpkg.com/prop-types@15/prop-types.js
HTTP/2 500 
date: Thu, 27 Jun 2019 03:43:52 GMT
content-type: text/html; charset=UTF-8
content-length: 323
x-cloud-trace-context: dba80e42cf1a21cd355630fad25753c6
cf-cache-status: MISS
strict-transport-security: max-age=31536000; includeSubDomains; preload
x-content-type-options: nosniff
expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
server: cloudflare
cf-ray: 4ed46b1158ef7866-LAX

mjackson commented 5 years ago

Thanks for the heads up. No idea what the problem is yet, but I'm looking into it. There has been a huge spike (4x the normal) in request volume over the past 24 hours, which may be to blame. I've added a few more servers but it probably won't be enough. I'll keep investigating. In the meantime, any other details you can provide will help. Thanks!

zivkaziv commented 5 years ago

We are having this problem too.

Link: https://unpkg.com/vff

Any way I can help you?

nickjanssen commented 5 years ago

@mjackson are you using GKE? You should upgrade to the latest version ASAP as 3 vulnerabilities were discovered allowing DoS attacks. Check your mail for GCP announcements which have more information. I don't know of course if there's a connection, but a 4x traffic increase feels off.

Stalinko commented 5 years ago

Same issue here. https://unpkg.com/driver.js/dist/driver.min.js loads 10s and then shows 500 Server Error

MikeTatsky commented 5 years ago

Same issue https://unpkg.com/fancygrid@1.7.54/client/fancy.min.css?_v=1754

Error: Server Error
The server encountered an error and could not complete your request.
Please try again in 30 seconds.

huqiliang commented 5 years ago

Same issue https://unpkg.com/docsify-demo-box-vue@1/dist/docsify-demo-box-vue.min.js

pierrealixt commented 5 years ago

Same issue https://unpkg.com/@fullcalendar/ https://unpkg.com/react/

sachingupta commented 5 years ago

We are also having same issue https://unpkg.com/@microsoft/teams-js@1.5.0-beta.5/
FYI: @ydogandjiev

nickjanssen commented 5 years ago

Feel free to use our temporary mirror: https://unpkg.laska.io (kindly provided by Laska)

mjackson commented 5 years ago

Things should be back to normal for now. Not sure if this was a DoS attack or not. I'll be investigating today.

@nickjanssen Thank you for putting up the mirror :) Very helpful! We are using GAE. Here's what our request activity looks like over the past 24 hours:

That large spike of 50x traffic looks suspiciously like a DoS attack to me...

GordonSmith commented 5 years ago

(or a recursive fetch? Is there a pathogenic circular reference case I wonder?)

mjackson commented 5 years ago

@GordonSmith That's a possibility. I wonder if there's a way for GAE to setup auto rate limiting from a given IP address. Or maybe Cloudflare can do it.

lddubeau commented 5 years ago

The problem came back or it was not completely resolved. Among the URLs that were presented as problematic earlier in this thread, this works:

https://unpkg.com/chroma

This does not work:

https://unpkg.com/@microsoft/teams-js@1.5.0-beta.5/

My own attempt that did not work was with:

https://unpkg.com/jquery@latest

I discovered that if I drop the @latest tag, then the query does work. The query works just fine on the mirror at https://unpkg.laska.io/ with or without @latest.