Extremely slow snap downloads


I prepped screen shots but you dont allow new users to post them!! aye come on

Crazy slow snap origin servers
Please update your servers… this painful for mass machine deployments

Our ISP is not the issue

I’d show evidence, but you forum wont allow me



It’s not really our servers - all snap downloads are served from a CDN (Fastly), so it’s not something we can just “upgrade”, but we can certainly collect data and see if there’s any other action we can take. As noted above, if you go to fastly-debug.com (must be on the same network as the affected systems) it will give you a report which can be downloaded in text form and pasted here.

  • Daniel


Not YOUR servers? Mate, I had to wait 45 minutes to get a confirmation email from Snapcraft.io to confirm my account so that I could write this message… 45 MINUTES to get an account confirmation email!!!

No matter what I install from snap, it doesn’t go beyond 140Kbps. I have a 80MBits/s optic fiber link and I can certainly tell you that something is wrong with this snap infrastructure. Horrible performance.

Is there any mirrors that can be used? Sorry if I sound pissed off, but I am pissed off! I was so happy that I found a potentially universal package manager for Linux, but first try was disappointing at best!


I have a 30MBps cable link and snap downloads typically saturate my bandwidth and are very fast. There’s more to download performance than just advertised last-mile speed, and a number of factors between you and the server you’re trying to reach can affect this.

As stated in the previous message, you can go to fastly-debug.com and check what your performance is to the nearest Fastly mirror/POP server. If you then post that information here, it can help us see if there’s a pattern that we can report to the CDN provider. Even better, if you typically see that poor performance, and can get us several fastly-debug dumps at various times of the day, it would be better than just a point-in-time snapshot.


  • Daniel


Client IP Info
IP 111.xx.xx.xx
AS Name SNAP-NZ-AS Snap Internet Limited, NZ
AS Number 23655
City mount victoria
Continent OC
Country new zealand
State WGN
Resolver IP Info
IP 111.xx.xx.xx
AS Name SNAP-NZ-AS Snap Internet Limited, NZ
AS Number 23655
Country Code NZ
Server Connection Info
Datacenter AKL
BW to server 18.96mbps
Congestion Window 30
Next Hop
RTT 13.72ms
Delta Retransmits 0
Total Retransmits 10
POP Latency (ms)
SYD 36
PER 84
BNE 57
MEL 53
SIN 218
LAX 177
AKL 14
WLG 12
ANY 49
Request Info
Time Mon Aug 05 2019 15:37:12 GMT+1200 (New Zealand Standard Time)
Host www.fastly-debug.com
Accept text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8
User-Agent Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0
Accept-Language en-US,en;q=0.5
Accept-Encoding gzip


This shows the data center used to serve content to you (it’s geographically close to you, I think) and the speed from you to the datacenter, at the moment this debug dump was produced.

Are you still seeing slow downloads? The BW measurement would indicate not, but I’d like to confirm either way.

if you’re ever seeing slow downloads, then at that moment you can go to fastly-debug.com and get a data dump such as this one; if the “BW to server” measurement is low, that would explain the slowness. If it’s not low, it might mean our transfer speed to the CDN datacenter is the problem; so having the information either way is quite useful to us.

  • Daniel