Cannot install snap apps from store

[Manik Taneja]

> On Dec 8, 2016, at 11:13 PM, Michael Nelson <michael.nelson at canonical.com> wrote:
> 
>> On Fri, Dec 9, 2016 at 5:39 PM Manik Taneja <manik.taneja at canonical.com> wrote:
>>> On Dec 8, 2016, at 8:21 PM, Oliver Ries <oliver.ries at canonical.com> wrote:
>>> Hi
>>> 
>>> On Thu, Dec 8, 2016 at 6:31 PM, XiaoGuo Liu <xiaoguo.liu at canonical.com> wrote:
>>> Hi,
>>> 
>>> I do not know how many of you have met the issue. When I try to install an app from the store, it comes me an error like:
>>> 
>>> liuxg at ubuntu:~$ sudo snap install tensorflow-demo --devmode --beta
>>> error: cannot install "tensorflow-demo": Get https://search.apps.ubuntu.com/api/v1/snaps/details/tensorflow-demo?channel=beta: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
>>> liuxg at ubuntu:~$ sudo snap install tensorflow-demo --devmode --beta
>>> error: cannot install "tensorflow-demo": Get https://search.apps.ubuntu.com/api/v1/snaps/details/tensorflow-demo?channel=beta: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
>> 
>> This has been usually because of CDN issues afaik. The store team should able to confirm shortly.
> 
> In this case, it's an issue just with the initial connection from the client to search.apps.ubuntu.com, before following any CDN url to download the snap. I also tried to reproduce around 40mins after XiaoGuo and couldn't.
> 
> After trying to reproduce, I checked the apache logs for search.apps.ubuntu.com and saw that during that time it only ever saw requests which resulted in 200 replies:
> 
> http://paste.ubuntu.com/23602216/
> 
> There were no relevant errors in the error log that I could see, nor does our monitoring show any high load at the time, so unless apache isn't logging timeouts, I suspect the requests weren't getting through to search.apps.ubuntu.com for some network-related reason, but I'm keen for someone else on the store team to check the networking and logs.
> 
> We have seen this before intermittently, so please if you see a client timeout as above, add your data to:
> 
> https://bugs.launchpad.net/click-package-index/+bug/1639981
> 
> and we'll keep digging.
Just to add, I have seen this issue intermittently a few times before. Next time, I'll capture logs and add to the bug. Please list out all that you need captured..
> 
> Thanks!
> -Michael
> 
>> 
>> Can you check status.snapcraft.io to see any outages around the date you experienced this?
>> 
>>> 
>>> I just did a quick test on my classic Ubuntu (AMD64) and was able to download & install the snap just fine.
>>>  
>>> In fact, I have met this this problem a number of times, and sometimes it works fine. Also, my colleague said to me that he gets the same issue sometimes. What is the root cause for this?
>>> 
>>> it might be good to get this into a bug report with all relevant information (distribution, architecture, network setup (traceroute?) and a timestamp so server logs can be matched.
>>> 
>>> let us know the id and the team will be looking at that asap.
>>> 
>>> thx,
>>> Olli
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