CODEWITHSUNDEEP
c#.netasynchronousaws-sdkamazon-cloudwatch
Baris Seker
Baris Seker

Reputation: 173

AmazonCloudWatchLogsClient async methods failing with no error

I'm trying to use the AWS CloudWatch library for logging. Everything works fine with synchronous methods. However, when I try to use the async versions of the same methods, the code fails abruptly, with no exceptions thrown. This piece of line fails:

await _amazonCloudWatchLogsClient.PutLogEventsAsync(request);

While this line works fine:

_amazonCloudWatchLogsClient.PutLogEvents(request);

Interestingly, this line works as well:

var result = _amazonCloudWatchLogsClient.PutLogEventsAsync(request).Result;

At this point I can't think of a way other than going back to the synchronous methods. Again, this is true for all the async methods that I've tried, not for this particular method.

Upvotes: 3

Views: 1116

Answers (1)

Baris Seker
Baris Seker

Reputation: 173

Apparently, you have to be careful while calling async methods. One problem in the calling chain will cause issues. In my case, 3 functions up the stack, a method was async with a return value of void.

public async void LogBatchThroughput

and I was calling this method like a regular method from a synchronous method. This was causing the last async method to be called (PutLogEventsAsync) to fail, silently. I changed the previous method signature to be:

public async Task LogBatchThroughput

and called it by .GetAwaiter().GetResult(), from a synchronous method.

This solved the issue. The issue didn't have anything to do with the AWS Cloudwatch libraries.

Upvotes: 1

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