AWS Cloudwatch only shows “1” in log monitoring?

Question

After more complex examples didn't work with the same outcome, I'm following the basic tutorial from here: https://docs.amazonaws.cn/en_us/AmazonCloudWatch/latest/logs/CountingLogEventsExample.html

I have set it up, and see the displayed dashboard:

I just send 1000 requests to the endpoint, however I'm only seeing "1" as the graphed metric.

ab -c 20 -n 1000 -T application/json -p data.json -m POST "<my-url.com>"

I'd like to see accurate reflection of request counts, what errors am I making in configuring cloudwatch metrics?

Answer 1

It sounds like you might be missing the log configuration from your ECS fargate task definition.

Make sure you have that setup. ie;

"logConfiguration": {
            "logDriver": "awslogs",
            "options": {
                "awslogs-group": "/ecs/my-app-logs",
                "awslogs-region": "us-east-1",
                "awslogs-stream-prefix": "myapp-prd-"
            }
        }

Take a read here, https://docs.aws.amazon.com/AmazonECS/latest/developerguide/using_awslogs.html#enable_awslogs

You must have the correct IAM permissions for logs:CreateLogStgream and logs:PutLogEvents attached to the IAM profile you use to run your ECS containers

Answer 2

The solution might have been to specify "0" as the default value (the default value is missing by default). I somehow go to see meaningful metrics, but when the metric value is "1", it shows I'm getting about 0.05 of them. Whatever the unit is (concurrency, maybe?)