Latency Metrics Logging

[ozheng-circle]

SDK v1 could enable latency metrics logging, but I am having trouble finding the v2 counterpart? It seems like this guide is the only one that's relevant, and it doesn't have any information on latency logging.

[debora-ito]

In v2, you can generate latency metrics by using a MetricPublisher -

        S3Client client = S3Client.builder()
            .region(Region.US_WEST_2)
            .overrideConfiguration(c->c.addMetricPublisher(LoggingMetricPublisher.create()))
            .build();

LoggingMetricPublisher is provided out-of-the-box, but there's also a way to publish metrics to CloudWatch.

For more info see Use SDK Metrics in our Dev Guide and check the examples in the blog post.