Hi Danilo,
Could you share your API MCC customer id by using the "Reply to Author"
option?
Cheers,
Anash P. Oommen,
AdWords API Advisor.
On Wednesday, October 1, 2014 8:48:26 AM UTC-4, Danilo B. wrote:
>
> The Adwords API appears to be behind some load balancer. Using netstat, I
> could trace back the "hanging" to a specific IP. This is the output during
> a "successful" request:
>
> Proto Recv-Q Send-Q Local Address Foreign Address
> State PID/Program name
> tcp 0 0 172.31.42.112:49312 74.125.24.101:443
> ESTABLISHED 3939/python
> tcp6 0 0 ::1:37156 ::1:5432
> ESTABLISHED 3939/python
>
> And this is the "hanging" request:
>
> Proto Recv-Q Send-Q Local Address Foreign Address
> State PID/Program name
> tcp 0 1543 172.31.42.112:57350 74.125.24.113:443
> ESTABLISHED 3939/python
> tcp6 0 0 ::1:37156 ::1:5432
> ESTABLISHED 3939/python
>
> So it appears that the server at 74.125.24.113 is having problems.
>
> Could anyone confirm this?
>
> Best regards,
> Danilo
>
>
> On Wednesday, October 1, 2014 2:16:08 PM UTC+2, Danilo B. wrote:
>>
>> I work on a project where we have a lot of outgoing HTTP requests to the
>> Adwords API. The system worked good until last week, where a lot of the
>> outgoing calls to Adwords started getting timeouts without any response
>> from the Server.
>>
>> I managed to find a request to the reporting URL that seemed to trigger
>> the problem every 5-10 requests (using the python-requests library):
>>
>> requests.post('
>> https://adwords.google.com/api/adwords/reportdownload/v201406',
>> data='__rdxml=XXX',
>> headers={
>> 'clientCustomerID': 1234,
>> 'developerToken': 'XXX',
>> 'Accept-Encoding': 'gzip',
>> 'User-Agent': 'XXX',
>> 'Content-Type': 'application/x-www-form-urlencoded',
>> 'Authorization': u'Bearer XXX'
>> },
>> stream=False)
>>
>> With this, every few requests the following exception occured:
>>
>> > ConnectionError: HTTPSConnectionPool(host='adwords.google.com',
>> port=443): Max retries exceeded with url:
>> /api/adwords/reportdownload/v201406 (Caused by <class
>> 'httplib.BadStatusLine'>: '')
>>
>> This only happens on our Amazon EC2 instance though. If I try to do the
>> request from my local host, everything runs fine for hundreds of requests.
>>
>> The problem not only occurs when querying the reports, but also when
>> using the SOAP API via the googleads library / suds.
>>
>> Unauthenticated GET requests on the same resource are not affected:
>>
>> >>> for i in range(500):
>> ... url = '
>> https://adwords.google.com/api/adwords/reportdownload/v201406'
>> ... requests.get(url)
>> ...
>> <Response [400]>
>> <Response [400]>
>> (...)
>>
>> I tried to debug the call using strace. The file descriptor is created,
>> then a connection is established:
>>
>> fcntl(8, F_GETFL) = 0x2 (flags O_RDWR)
>> fcntl(8, F_SETFL, O_RDWR) = 0
>> connect(8, {sa_family=AF_INET, sin_port=htons(443),
>> sin_addr=inet_addr("74.125.24.113")}, 16) = 0
>> setsockopt(8, SOL_TCP, TCP_NODELAY, [1], 4) = 0
>> getpeername(8, {sa_family=AF_INET, sin_port=htons(443),
>> sin_addr=inet_addr("74.125.24.113")}, [16]) = 0
>>
>>
>> open("/var/venv/radar/local/lib/python2.7/site-packages/requests/cacert.pem",
>>
>> O_RDONLY) = 9
>> read(9, "XXX"..., 4096) = 4096
>> (...)
>> read(9, "XXX"..., 4096) = 1234
>> read(9, "", 4096) = 0
>> close(9) = 0
>> munmap(0x7f63311fe000, 4096) = 0
>>
>> Then the TLS handshake takes place and the request is sent. But a
>> response is never returned.
>>
>> write(8,
>> "\26\3\1\1\37\1\0\1\33\3\3T+\343\2175\21\361\221X\224P\371uf\362\313O\272\353;\21"...,
>>
>> 292) = 292
>> read(8, "\26\3\3\0=\2\0", 7) = 7
>> read(8,
>> "\0009\3\3T+\343\217\277\377`\370\220\177\350\nh\214\10\305W\247\37\267e\252\200\235\32\331g\276"...,
>>
>> 59) = 59
>> read(8, "\26\3\3\16\366", 5) = 5
>> read(8,
>> "\v\0\16\362\0\16\357\0\7q0\202\7m0\202\6U\240\3\2\1\2\2\10%\323H%\200`\276"...,
>>
>> 3830) = 3830
>> read(8, "\26\3\3\1M", 5) = 5
>> read(8,
>> "\f\0\1I\3\0\27A\4]\255\356\356\35F\340UW/w\361\323\334\244\212\242k\223\244\377\2167"...,
>>
>> 333) = 333
>> read(8, "\26\3\3\0\4", 5) = 5
>> read(8, "\16\0\0\0", 4) = 4
>> write(8,
>> "\26\3\3\0F\20\0\0BA\4\325\306k,\300\244*\246\34\32\232\322/,\21F\337\230\254\270\332"...,
>>
>> 126) = 126
>> read(8, "\26\3\3\0\256", 5) = 5
>> read(8,
>> "\4\0\0\252\0\1\211\300\0\244\03003\177/St\230G\250ov\210&P\376
>> uI?k\306"..., 174) = 174
>> read(8, "\24\3\3\0\1", 5) = 5
>> read(8, "\1", 1) = 1
>> read(8, "\26\3\3\0(", 5) = 5
>> read(8,
>> "\0\0\0\0\0\0\0\0\204\251\275\247/L\205v\273R\253\207\255\215v\227\263P\r%\200r\357\7"...,
>>
>> 40) = 40
>> write(8,
>> "\27\3\3\6\2\234\35\255\207D\357\357\324\222\nZ\267\377LgY\7Zm\270\344q\20d\3406\305"...,
>>
>> 1543) = 1543
>> fcntl(8, F_GETFL) = 0x2 (flags O_RDWR)
>> fcntl(8, F_SETFL, O_RDWR) = 0
>> read(8, <unfinished ...>
>>
>> After a few minutes of no response data, a timeout aborts the read call.
>> As there is no response data, there is also no valid HTTP header and status
>> code, which causes the httplib.BadStatusLine error.
>>
>> The connection to the server appears to be established successfully, the
>> server responds with data to the TLS handshake. Also, in about 90% of the
>> cases the request seems to work successfully. Therefore I suspect that the
>> problem is on the server side.
>>
>> Any pointers on solving this problem?
>>
>
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