topic Re:IAS occasionally timeout on HTTP requests in Intel® Software Guard Extensions (Intel® SGX)

IAS occasionally timeout on HTTP requests

KingLi — Wed, 13 Apr 2022 10:19:01 GMT

Hi,

Our project relies on Intel IAS for remote attestation, and we use service provided at https://api.trustedservices.intel.com for that.

Lately we notice some of the requests made to https://api.trustedservices.intel.com will timeout, is there any rate limit enforced on the service or any measure we can take to mitigate this issue?

Example

(https://api.trustedservices.intel.com/sgx/attestation/v4/sigrl/00000c13): operation timed out

Re:IAS occasionally timeout on HTTP requests

JesusG_Intel — Fri, 15 Apr 2022 16:56:06 GMT

Hello KingLi,

We are investigating this issue. We appreciate your patience.

Regards,

Jesus G.

Intel Customer Support

Re:IAS occasionally timeout on HTTP requests

JesusG_Intel — Fri, 15 Apr 2022 20:01:58 GMT

Hello KingLi,

We received this response from engineering:

We are not using rate limiting on this specific API. Rate limiting would result in HTTP code 429 and not timeout. Timeout suggests a network layer issue.
Our monitoring systems did not detect any issues suggesting network layer problems – specifically no connection timeouts and in addition overall service response time seems normal.
To help diagnose the issue further it would be helpful if you could provide more details:
1. When did you start noticing the problem?
2. Provide time of example timeout failure. In other words, how long does it take to timeout?
3. What is the timeout threshold set on the client side?
To mitigate such issues one of the possible approaches is to use retry logic.

Sincerely,

Jesus G.

Intel Customer Support

Re:IAS occasionally timeout on HTTP requests

JesusG_Intel — Tue, 19 Apr 2022 17:47:43 GMT

Hello KingLi,

Do you need further help with this issue?

Sincerely,

Jesus G.

Intel Customer Support

Re:IAS occasionally timeout on HTTP requests

JesusG_Intel — Thu, 21 Apr 2022 23:59:58 GMT

Hello KingLi,

We have not heard from you in several days so we will no longer monitor this thread. We hope you were able to resolve your issue. Please start a new thread if you need further help.

Sincerely,

Jesus G.

Intel Customer Support