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Microsoft Dynamics 365 | Integration, Dataverse...
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Slow cold start of environment (one to more minutes TTFB)

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Posted on by 38

Dear,

We have a (production) dynamics 365 environment that takes quite some to respond when opening it after some time (hours or days) of inactivity of the environment. The longer the inactivity is, the longer it takes that the environment starts responding.

It doesn't matter if we open a (default or custom) model-driven app or even just the advanced settings page (xxx.crm.dynamics.com/main.asxp?settingsonly=true)... The very first page load takes too long, after that, the environment responds "normally", though I experience some minor delays.

Below a devtools screenshot of opening the settings page, which takes more than a minute to respond...

pastedimage1642783766957v1.png

Currently, nobody except me uses this environment. There are no scheduled flows in the environment...

I have already contacted MS Support, but they also don't know what is going on. IMHO, it has nothing to do with the client (different computers, different networks, different users, ... all the same).

I suspect that some (unknown) queries are being put in some sort of queue, and that this queue is being triggered once somebody enters the environment after a while... I have however no evidence, and I don't know how/where to check this...

Anybody knows how to find out what is going on?

Thanks,

Koen

I have the same question (0)
  • edmunch Profile Picture
    Microsoft Employee on at

    I would say if its an online environment then MS support should be able to help determine the delay as long as you provide a Fiddler of the issue and maybe even a WireShark.  MS support should then be able to use this data along with MS telemetry to find the cause of this.  The Fiddle in itself should be able to show the response times if its coming from client side or server.

  • KoJaPD Profile Picture
    38 on at

    Indeed, I have send them multiple HAR files already. I will await their further investigation, but maybe someone here knows some other tools to dig into this problem...

  • Nicolas Gingras Profile Picture
    on at

    We have the same problem here. Have you found something after further investigation?

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