Extremely Slow Map Loading in ArcGIS Dashboard – Assistance Required

[mehmetaktas]

I am experiencing a significant issue with map loading in my ArcGIS Dashboard. The map data takes an unusually long time to load, causing considerable delays and impacting usability. This problem persists across multiple attempts, even when using different browsers or network connections.

Here are the details of the issue:

• Software Version: ArcGIS Enterprise 11.3
• Environment: Corporate network with Firewall (FW)
• Shared Service: Web Map
• Number of Registered Layers: 1
• Number of Records: 490,000
• Error Codes: None; the performance is extremely slow.
• Steps Taken:
  • Cleared browser cache.
  • Tried different browsers (e.g., Chrome, Firefox, Edge).
  • Ensured a stable internet connection.
• Expected Outcome: The map data should load quickly to allow for efficient use of the dashboard.

Could you please provide guidance on how to resolve this issue? Your assistance is greatly appreciated.

[KevinJohnsonSDD]

I've experienced the exact same issues the last 2 days.  My basemap will load reasonably well but the layers build extremely slowly or don't appear at all.  On 1/8/25 I was getting error messages that it could not load the layer.  I haven't opened a case with ESRI, but it appears they are having problems with content delivery.  

[Laura]

AGOL has been having issues but I see you are using Enterprise. Are your instances for the layers dedicated or shared? Sometimes changing those up or the # of dedicated instances can make a big difference. If it's shared you can try switching to dedicated and see if anything changes. 

Can also play around with the extent of the layer. Loading thousands of points far out may take a bit. 

Make sure the layer isn't publicly editable as that can also slow it down. 

[mehmetaktas]

Our instances are not dedicated; they are shared.

Regarding the extent, it is already set as I need the layer to appear this way.

As for the editability, the layer needs to remain editable since it is required for the data and graphics I have prepared.

[RyanUthoff]

Does the map load slow if you directly view the map in the map viewer (outside of the dashboard)? Or is it slow only when accessing it through the dashboard?

[mehmetaktas]

The map loads slowly in both cases, whether I access it directly in the Map Viewer or through the dashboard.

[RyanUthoff]

Do you have other maps containing data from other feature services and databases in Portal? And if so, are they going slow as well?

Basically, what you will need to do is isolate the problem. Either narrow it down to a specific feature service or a specific component of ArcGIS Enterprise environment.

If the issue is isolated to only this one feature service, then it's possible that there is something wrong with the underlying data. Such as spatial/attribute indexes needing to be reindexed. 

If everything is slow, then it could be a problem with your enterprise environment. Perhaps security software is slowing it down, or something is misconfigured elsewhere. In that case, you'd probably need to work with your IT department to troubleshoot that further.

[mehmetaktas]

Yes, there are other map services in the Portal, and they are also slow. I have already created indexes for the geometries in the data, but it did not make any difference. I have also consulted with the IT department in our organization, and there does not appear to be any issues caused by security software blocking or interfering.