Sure Alain,
Thanks for responding. My calendar creation code is pretty standard, I assume, 
since I use the client apis (although wrapped in a few classes of mine which 
are not shown here). Here is the code that actually gets to run on calendar 
creation (after resolving the intermediate level) :
----------------------------------------------------------------------------------------------------------
CalendarEntry entry = new CalendarEntry();
entry.setTitle(new PlainTextConstruct("Some name"));
entry.setSummary(new PlainTextConstruct("Some description"));
CalendarEntry newEntry = null;
CalendarService calendarService = new CalendarService("My own service");
try {
      calendarService.insert(updateURLFeed(new 
URL("https://www.google.com/calendar/feeds/default/owncalendars/full";)), entry);

} catch (ServiceException e) {
...
} catch (Exception e) {
...
}

Where 'updateURLFeed' is a method that adds the 'xoauth_requestor_id' http 
parameter to the feed url.
----------------------------------------------------------------------------------------------------------

So, a couple of things come to mind from your response:

1-      I don't think I could optimize this (simple) code. Or, do you have any 
suggestions on how to do this?

2-      Your statement about the likelihood of api failures increasing with the 
number of calendar a user owns tells me that the Google api implementation is 
really not scalable, and it probably needs improvement. Are there any plans in 
place for Google to work on this?
Thanks again for your response,
-Patricia

From: [email protected] 
[mailto:[email protected]] On Behalf Of Alain 
Vongsouvanh
Sent: Friday, September 23, 2011 3:44 AM
To: [email protected]
Subject: Re: [Calendar API] programmatic calendar creation is failing often

Hello Patricia,

500 errors usually mean a temporary issue with the API. It can be avoided by 
optimizing the code and making sure no weird requests are sent to the API.
Would you mind sharing the part of your code that creates the calendar (by 
removing any private data)?

Also, the more calendar a user has, the more likely the API will fail as 
processing too many calendar in the allocated time (for a web request) might 
not be possible.
Thanks!
Alain

On Thu, Sep 22, 2011 at 9:56 PM, Patricia Goldweic 
<[email protected]<mailto:[email protected]>> wrote:
My web application creates Google Apps calendars among other types of
content, and it has been failing often since yesterday, in approximately
10-25% of calendar creation requests. The application uses the Java gdata
client apis, and has been getting the following type of error:

com.google.gdata.util.ServiceException: Internal Server Error
Internal Error

       at
com.google.gdata.client.http.HttpGDataRequest.handleErrorResponse(HttpGDataR
equest.java:624)
       at
com.google.gdata.client.http.GoogleGDataRequest.handleErrorResponse(GoogleGD
ataRequest.java:563)
       at
com.google.gdata.client.http.HttpGDataRequest.checkResponse(HttpGDataRequest
.java:552)
       at
com.google.gdata.client.http.HttpGDataRequest.execute(HttpGDataRequest.java:
530)
       at
com.google.gdata.client.http.GoogleGDataRequest.execute(GoogleGDataRequest.j
ava:535)
       at com.google.gdata.client.Service.insert(Service.java:1409)
       at
com.google.gdata.client.GoogleService.insert(GoogleService.java:606)
       at
edu.northwestern.at.bboogle.gint.data.gservices.GintCalendarService.insertCa
lendarEntry(GintCalendarService.java:132)

Is this a known bug in Google Apps Calendars, or a temporary issue?  Please
note that I have successfully submitted later requests to create the same
type of calendar (with the same names) and they have succeeded.

Thanks in advance,
-Patricia



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