Our app reads from the feed upon user¹s request and as a test executes this:
entry = myService.update(new URL(entry.getEditLink().getHref()), entry);
It seems this update command does not always update the record and so I
compute the time diff based on some old update time.
2011/08/08 19:34:42:814 PDT [WARN] ImapConnection - GMail ~ updated1:
2011-08-09T02:29:27.253Z, value: 1312856967253, etag:
"Rnw-ezVSLit7I2A9WhdRGEgMTgI."
2011/08/08 19:34:43:117 PDT [WARN] ImapConnection - GMail ~ updated2:
2011-08-09T02:32:51.932Z, value: 1312857171932, etag:
"QHc4ejVSLit7I2A9WhdRGEgNRgM."
Time diff (min): 1
2011/08/08 19:35:01:282 PDT [WARN] ImapConnection - GMail ~ updated1:
2011-08-09T02:29:25.787Z, value: 1312856965787, etag:
"RHkzfzVSLit7I2A9WhdRGEgMTgI."
2011/08/08 19:35:01:553 PDT [WARN] ImapConnection - GMail ~ updated2:
2011-08-09T02:33:10.382Z, value: 1312857190382, etag:
"QX0zejVSLit7I2A9WhdRGEgNRg0."
Time diff (min): 1
2011/08/08 19:35:11:198 PDT [WARN] ImapConnection - GMail ~ updated1:
2011-08-09T02:29:25.787Z, value: 1312856965787, etag:
"RHkzfzVSLit7I2A9WhdRGEgMTgI."
2011/08/08 19:35:11:499 PDT [WARN] ImapConnection - GMail ~ updated2:
2011-08-09T02:29:25.787Z, value: 1312856965787, etag:
"RHkzfzVSLit7I2A9WhdRGEgMTgI."
Time diff (min): 5
On 8/8/11 11:31 AM, "Alain Vongsouvanh" <[email protected]> wrote:
> Hello Alexey,
>
> Are you using batch requests to update your contact? Can you make sure that
> the contact has indeed been updated?
> It might be hard to test but one thing you could try is printing the value of
> updated before and after the update to make sure that it changes.
> Another thing is to make sure that the contact's etag changed as well.
>
> Best,
> Alain
>
> On Sun, Aug 7, 2011 at 1:26 PM, Alexey Panteleev <[email protected]> wrote:
>> Hi Alain,
>>
>> I read recently updated contacts from the feed and execute the update for
>> each to measure the timestamp difference.
>> What I see is that for some contacts the difference is abnormal (I printed
>> out the entry.getUpdated() this time also):
>>
>> 2011/08/07 13:20:30:956 PDT [WARN] GMail ~ Time diff (min): 1, str:
>> 2011-08-07T20:18:15.362Z
>> 2011/08/07 13:20:39:099 PDT [WARN] GMail ~ Time diff (min): 1, str:
>> 2011-08-07T20:18:43.648Z
>> 2011/08/07 13:20:49:630 PDT [WARN] GMail ~ Time diff (min): 62, str:
>> 2011-08-07T19:17:54.834Z <---- 62min?
>> ...
>>
>>
>> I am using the following versions in my maven setup:
>>
>> <properties>
>> <gdataVersion>1.41.5</gdataVersion>
>> </properties>
>>
>> <dependency>
>> <groupId>com.google.gdata</groupId>
>> <artifactId>gdata-contacts-3.0</artifactId>
>> <version>${gdataVersion}</version>
>> </dependency>
>> ...
>> <dependency>
>> <groupId>com.google.gdata</groupId>
>> <artifactId>gdata-client-1.0</artifactId>
>> <version>${gdataVersion}</version>
>> </dependency>
>> <dependency>
>> <groupId>com.google.gdata</groupId>
>> <artifactId>gdata-core-1.0</artifactId>
>> <version>${gdataVersion}</version>
>> </dependency>
>> <dependency>
>> <groupId>com.google.collections</groupId>
>> <artifactId>google-collections</artifactId>
>> <version>1.0</version>
>> </dependency>
>>
>>
>> On 8/5/11 9:47 AM, "Alain Vongsouvanh" <[email protected]
>> <http://[email protected]> > wrote:
>>
>>> Hello Alexey,
>>>
>>> Sorry about the delay in getting back to you! I just tried updating and
>>> checking the difference between my computer timestamp and the updated value
>>> timestamp and the difference was within 1 or 2 seconds, not hours.
>>>
>>> Can you try printing the value of "entry.getUpdated()" to check if the
>>> string representation makes sense. Also, what version of the client library
>>> are you using?
>>>
>>> Best,
>>> Alain
>>>
>>> On Tue, Aug 2, 2011 at 1:02 PM, Alexey Panteleev <[email protected]
>>> <http://[email protected]> > wrote:
>>>>
>>>> Hello,
>>>>
>>>>
>>>>
>>>> I've been running some experiments monitoring the Updated timestamp on
>>>> contact records:
>>>>
>>>>
>>>>
>>>> long t1 = System.currentTimeMillis();
>>>>
>>>> entry = myService.update(new URL(entry.getEditLink().getHref()), entry);
>>>>
>>>> long updateTimeDiff = t1 - entry.getUpdated().getValue();
>>>>
>>>>
>>>>
>>>> What I see is that the time difference between the update time and my
>>>> local time varies drastically from one call to another,
>>>>
>>>> one time I see 1min difference another time it is 50min difference, which
>>>> really means that the google servers record very different utc timestamps
>>>> for events that actually happen next to each other.
>>>>
>>>>
>>>>
>>>> Can you please explain this and also tell me how I could rely on these
>>>> timestamps during synch
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