topic Re: R80.20 - Is the REST API working asynchronous? in API / CLI Discussion

R80.20 - Is the REST API working asynchronous?

KonstantinS — Mon, 02 Sep 2019 11:04:29 GMT

Hi all,

We are currently doing a lot of stuff with the REST API (v1.3).

In general we are sending four API calls:

1. login

2. set-% (e.g. set-access-role)

3. publish

4. logout

Sometimes it happens that the change will not get through and/or the logout will not work.

It seems that the API Server is executing them asychronously, because it helps if we are inserting some waits (e.g. 10sec) between the calls. Without the waits it would be executed within milliseconds and leads into inconsistent objects. Of course, this isn't a solution because in our PROD environment we may have a higher load on the system later.

Has anyone the same or similar issues? Is the API Server executing the calls in some queue?

Regards,

Konstantin

Re: R80.20 - Is the REST API working asynchronous?

PhoneBoy — Mon, 02 Sep 2019 15:36:37 GMT

How many commands are you doing before you publish?
One thing we recommend as a best practice is to limit the number of changes made per session (a few hundred) before you publish.

Re: R80.20 - Is the REST API working asynchronous?

KonstantinS — Mon, 02 Sep 2019 15:42:01 GMT

@PhoneBoy

Only one command / one change.

Re: R80.20 - Is the REST API working asynchronous?

PhoneBoy — Tue, 03 Sep 2019 15:35:12 GMT

What are the specs on your management server(s) (RAM, CPU)?
If it's multi-domain, how many domains?
Perhaps some tuning needs to be done on the API server for better performance and/or more RAM/CPU may be needed.

Re: R80.20 - Is the REST API working asynchronous?

KonstantinS — Wed, 04 Sep 2019 07:03:15 GMT

It is a fresh installed Management Server with one domain.

We have only the standard objects in place.

Re: R80.20 - Is the REST API working asynchronous?

PhoneBoy — Wed, 04 Sep 2019 16:19:35 GMT

Amount of RAM/CPU in management server?

Re: R80.20 - Is the REST API working asynchronous?

KonstantinS — Thu, 05 Sep 2019 07:09:32 GMT

32GB RAM and 16 CPUs

Re: R80.20 - Is the REST API working asynchronous?

Timothy_Hall — Thu, 05 Sep 2019 13:12:27 GMT

Please see the following SK, your API server may not be flat-out crashing but if it is constrained for memory it can cause some problematic effects. Heavy use of the API will almost certainly require giving the API server more memory:

sk119553: Security Management API server crashes under heavy load

Re: R80.20 - Is the REST API working asynchronous?

KonstantinS — Thu, 05 Sep 2019 16:18:33 GMT

Hi @Timothy_Hall ,

Thanks, I saw this article, but I don't think that adding one object to an existing Access Role is known as "heavy load".

Re: R80.20 - Is the REST API working asynchronous?

PhoneBoy — Thu, 05 Sep 2019 21:08:33 GMT

I highly recommend getting the TAC involved to troubleshoot this.

Re: R80.20 - Is the REST API working asynchronous?

KonstantinS — Fri, 06 Sep 2019 06:07:59 GMT

Yes, we did already and it is still ongoing.

But I have the hope that someone ran into the same problem.