Cannot install snap apps from store

Sun Dec 11 00:26:34 UTC 2016

Hi Madper,

Thanks for your reply. Yeah, it has been confirmed in the bug report at
https://bugs.launchpad.net/snappy/+bug/1639981. It happens in other regions
as well.

Best regards,
XiaoGuo

On Fri, Dec 9, 2016 at 8:29 PM, Madper Xie <madper.xie at canonical.com> wrote:

> Hi Xiaoguo,
>
> I do believe that you have a good proxy. So just try to use your proxy
> when you reproduce the timeout issue again. So that we can know if Mainland
> China is the only affected area.
>
>
>    - sudo systemctl edit snapd; #adding following configure:
>
> [Service]
> Environment=http_proxy=http://host:port
>
>    - sudo systemctl restart snapd
>    - If you do only have a socks proxy you can use polipoc as a bridge.
>    Which will accept http input and redirect it to a socks interface.
>    - Put following configuration into /etc/polipo/config
>
> `````
>
> logSyslog = true
> logFile = /var/log/polipo/polipo.log
> proxyAddress = "0.0.0.0"
> proxyPort = 8118
> socksParentProxy = "127.0.0.1:1080"     # please modify this line as
> needed.
> socksProxyType = socks5
> ```````
>
> On Fri, Dec 9, 2016 at 7:46 PM, Shuduo Sang <shuduo.sang at canonical.com>
> wrote:
>
>> 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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>>>
>>>
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>>> XiaoGuo, Liu
>>>
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-- 
XiaoGuo, Liu
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