Cannot install snap apps from store

[Shuduo Sang]

Not sure if there are CDN deployed in China to accelerate Ubuntu Core
store. If there are, the issue need be resolved by CDN vendor. If there are
not, please help to deploy some. Network issue really make Chinese
developer and Ubuntu Core taster frustrated.

On Fri, Dec 9, 2016 at 3:54 PM, XiaoGuo Liu <xiaoguo.liu at canonical.com>
wrote:

> Yes, at one time, it was consistent that it did not work at all no matter
> how many times I tried, and it was quite embarrassing during a training
> session. I thought it was network problem. After some time, it became OK.
>
> On Fri, Dec 9, 2016 at 3:46 PM, Manik Taneja <manik.taneja at canonical.com>
> wrote:
>
>>
>>
>> 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/tensorfl
>>> ow-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/tensorfl
>>> ow-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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>
>
> --
> XiaoGuo, Liu
>
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