Started to get "A task was cancelled"

I’ve noticed that i have started to get “A task was cancelled” errors from some tasks im using to collect data from GA. I have read this thread https://github.com/googleapis/google-api-dotnet-client/issues/1394 that looks similar but i don’t think i have any network issues. At least it fails both when i run it locally AND in my Azure function. It also doesn’t fail all the time, i use a loop to grab alot of data with something like X number of rows in each request. Sometimes it runs for 1 iteration, sometimes 3 and so on.

I suppose it is some kind of timeout error?

• Is it possible to get any more details on the error than “A task was cancelled”? Can i enable more logging somehow?
• What else can i do to debug this?

The gist of my code looks like this.

            while (rowcount >= maxResults && interations < maxIterations)
            {
                var accountEmailAddress = Environment.GetEnvironmentVariable("GA.AccountEmail");
                var api = new GoogleAnalyticsAPI(xmlKey, accountEmailAddress);

                string[] dimensions = new string[] { dimension };
                string[] metrics = new string[] { metric };
                string[] filters = new string[] { $"{pathFilter};{metric}>{viewFilter}" };
                string[] sort = new string[] { "-" + metric };

                log.LogInformation($"Start GA request for iteration {interations} of {maxIterations}.");

                var request = api.BuildAnalyticRequest("ga:15796540", dimensions, metrics, filters, maxResults, sort, startDate, endDate, index, "gaid::-1");

                var response = request.Execute();

                foreach (List<string> row in response.Rows)
                {
                    allRows.Add(row);
                }

                rowcount = response.Rows.Count;

                log.LogInformation($"Collected {rowcount} from GA in iteration {interations}.");

                index += rowcount;
                interations += 1;
            }

        public DataResource.GaResource.GetRequest BuildAnalyticRequest(string profileId, string[] dimensions, string[] metrics,
                                                                    string[] filters, int maxResults, string[] sort,
                                                                    string startDate, string endDate, int startIndex, string segment)
        {

            DataResource.GaResource.GetRequest request = Service.Data.Ga.Get(profileId, startDate,
                                                                                endDate, string.Join(",", metrics));
            request.Dimensions = string.Join(",", dimensions);
            request.MaxResults = maxResults;
            request.Filters = string.Join(",", filters);
            request.Sort = string.Join(",", sort);
            request.StartIndex = startIndex;
            if (segment != "")
            {
                request.Segment = segment;
            }

            return request;

        }

        public GoogleAnalyticsAPI(string xmlKey, string accountEmailAddress)
        {

            var rsa = new RSACryptoServiceProvider();
            RSACryptoServiceProviderExtensions.RSACryptoServiceProviderExtensions.FromXmlString(rsa, xmlKey);


            ServiceAccountCredential credentials = new ServiceAccountCredential(
            new ServiceAccountCredential.Initializer(accountEmailAddress)
            {
                Scopes = new[] { AnalyticsService.Scope.AnalyticsReadonly },
                Key = rsa
            });

            Service = new AnalyticsService(new BaseClientService.Initializer()
            {
                HttpClientInitializer = credentials,
                ApplicationName = "WorthlessVariable"
            });
        }

When i started debugging this i was using Google.Apis.Analytics.v3 1.37.0.1306 but i updated it to 1.49.0.1679 but i still get the same error.

[jskeet]

Thanks for the extra information, folks. It does sound like it’s probably something in the service itself - I’ll raise it internally on Tuesday.

[Robert-Zandberg]

We have currently the same issue (A task was cancelled).

We’re using the Service account method with an certificate. The code looks like this:

  var certificate2 = new X509Certificate2(@"key.p12", "notasecret", X509KeyStorageFlags.Exportable);
  var credential = new ServiceAccountCredential(new ServiceAccountCredential.Initializer(_gaMail)
  {
    Scopes = scopes
  }.FromCertificate(certificate2));

  var service = new AnalyticsService(new BaseClientService.Initializer
  {
    ApplicationName = "Analytics portal",
    HttpClientInitializer = credential
  });



  var dataList = _db.GaProperties.Where(property => property.Enabled).ToList();
  var dataAray = new GaSiteData[dataList.Count + 1];
  var total = 0;

  try
  {
    var data = service.Data.Realtime.Get("ga:" + dataList[0].PropertyId, "rt:activeUsers").Execute();
    var  gaVisitors = data.TotalsForAllResults["rt:activeUsers"];
    total += int.Parse(gaVisitors);
  }
  catch (GoogleApiException e)
  {
    var gaVisitors = "Error realtime api google";
  }

The error doesn’t show up all the time so my guess is that when I build the workaround that retries the failed request it will do the job.