Yesterday, during the working day I myself observed this mistake. 100% of
the requests. Suddenly, everything is fine now. I can not understand what
is happening. Many thanks for the quick reply!
понедельник, 21 декабря 2015 г., 21:43:46 UTC+3 пользователь Nick (Cloud
Platform Support) написал:
>
> Including the text of the error would be useful. It's unclear as of this
> moment where the root cause of the issue lies. I've attempted to reproduce
> using the code you supplied, but instead saw either no error, or one time,
> "deadline exceeded" from urlfetch, which could be caused by a high load on
> the server. A dig query from a GCE machine shows they have records in
> place, and curl can successfully retrieve a page from rutracker.org.
>
> Is this still happening to you?
>
> dig rutracker.org ANY
>
> ; <<>> DiG 9.9.5-3ubuntu0.6-Ubuntu <<>> rutracker.org ANY
> ;; global options: +cmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 57269
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 10, AUTHORITY: 0, ADDITIONAL: 1
>
> ;; OPT PSEUDOSECTION:
> ; EDNS: version: 0, flags:; udp: 512
> ;; QUESTION SECTION:
> ;rutracker.org. IN ANY
>
> ;; ANSWER SECTION:rutracker.org. 489 IN SOA
> ns1.rutracker.org. hw.rutracker.org. 15122121 3600 900 120960
> 600rutracker.org. 489 IN NS
> ns2.rutracker.org.rutracker.org. 489 IN NS
> ns4.rutracker.org.rutracker.org. 489 IN NS
> ns1.rutracker.org.rutracker.org. 489 IN NS
> ns3.rutracker.org.rutracker.org. 489 IN NS
> ns5.rutracker.org.rutracker.org. 489 IN A
> 195.82.146.214rutracker.org. 489 IN AAAA
> 2a02:4680:22::214rutracker.org. 489 IN MX 5
> mail.rutracker.org.rutracker.org. 489 IN TXT "v=spf1 mx
> mx:mail.rutracker.org -all"
>
> ;; Query time: 1 msec
> ;; SERVER: 169.254.169.254#53(169.254.169.254)
> ;; WHEN: Mon Dec 21 18:42:03 UTC 2015
> ;; MSG SIZE rcvd: 285
>
>
> On Monday, December 21, 2015 at 5:26:20 AM UTC-5, Sofia S wrote:
>>
>> This code works fine in the simulator (i.e. GoogleAppEngineLauncher). I
>> get an DNS error when run on the GAE server. How can I fix this?
>>
>> #!/usr/bin/env python
>>
>> import webapp2
>> from google.appengine.api import urlfetch
>>
>> class MainHandler(webapp2.RequestHandler):
>>
>> def get(self):
>> self.response.headers['Content-Type'] = 'text/html;
>> charset=windows-1251'
>>
>> try:
>> result = urlfetch.fetch("http://rutracker.org/";)
>> self.response.write(result.content)
>> except Exception as e:
>> self.response.write(e)
>>
>> app = webapp2.WSGIApplication([
>> ('/.*', MainHandler)
>> ], debug=True)
>>
>>
>>
>>
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