InstanceCredentialsProvider does not eagerlyFetch

[ghost]

I've been debugging an issue where we observe increased latency during our first DynamoDB request. We are using the InstanceCredentialsProvider from the 1.11 AWS SDK and instantiating it with true for the first parameter.

In reviewing the source code it seems that this calls a private constructor that takes two boolean parameters, the second being eagerlyRefreshCredentialsAsync. Unfortunately this parameter is ignored and shouldRefresh is set to false, therefore the credentials are not actually fetched until they are used.

If the credentials were to be eagerly fetched (as it seems was intended), then our application would not suffer this latency hit on the first customer request. As it is we will need to work around this by eagerly calling getCredentials ourself.

https://github.com/aws/aws-sdk-java/blob/master/aws-java-sdk-core/src/main/java/com/amazonaws/auth/InstanceProfileCredentialsProvider.java#L100

[debora-ito]

Hi @rhoons do you think the latency you've been observing is the same reported in

• InstanceProfileCredentialsProvider is slow to get credentials since 1.11.678 #2171 and
• Slow requests to get credentials from InstanceProfileCredentialsProvider aws-sdk-java-v2#1667?

[debora-ito]

Closing due to no response. Feel free to reopen if you have further questions.