topic 4.29 Memory Leak on StreamLayer in ArcGIS JavaScript Maps SDK Questions

4.29 Memory Leak on StreamLayer

orahlagi — Sun, 21 Apr 2024 09:54:28 GMT

Hello, Our product is using StreamLayer with a vast amount of updates, that are sent through "sendMessageToClient" API.

After ±20 minutes of use, the map becomes blank, and a large amount of errors such as :

TypeError: Cannot read properties of undefined (reading 'memoryStats') at get memoryStats And: Array buffer allocation failed

are popping up. so the map gets stuck and hundreds of errors are stacked.

We verified that it only happens on 4.29, downgrade to 4.28 resolves this.

Pretty tough for me to reproduce this on a sandbox because of the nature of the data and update amount.

If this can be fixed before 4.30 it would be very helpful.

Thanks.

Re: 4.29 Memory Leak on StreamLayer

UndralBatsukh — Mon, 22 Apr 2024 15:52:15 GMT

We will take a look into this behavior. Can you please give me some specifics on how many features, what kind of updates and update frequency? thanks

Re: 4.29 Memory Leak on StreamLayer

orahlagi — Tue, 30 Apr 2024 09:11:36 GMT

Approx 5000 features spread on 3 Stream layers

around 1000 updates a min that include movements of the features (by updating the location)

Running 4.29 on any other environment that includes a bit fewer features / movements works fine and doesn't crash. only on intensive env. 4.28 on the same env is perfectly fine.

Re: 4.29 Memory Leak on StreamLayer

snlasystem — Sun, 12 May 2024 16:00:04 GMT

We are experiencing the same error with version 4.29.5, will try to downgrade to 4.28.10 to see if that fixes the problem. We have multiple layers that the user can choose to toggle on and off the ones most frequently updated have roughly 15 features that get updated a few times per second at most. Others might have a few hundred features but they doesn't get updated that often.

Re: 4.29 Memory Leak on StreamLayer

snlasystem — Thu, 16 May 2024 05:55:37 GMT

Downgrading to 4.28.10 fixed the problem

Re: 4.29 Memory Leak on StreamLayer

UndralBatsukh — Thu, 23 May 2024 19:09:02 GMT

Hi there,

This issue is addressed at 4.30. You will be able to test the fix using our next version. Please test it out and the fix is working for you. Thanks

https://github.com/Esri/feedback-js-api-next/blob/main/CHANGELOG.md

Re: 4.29 Memory Leak on StreamLayer

irshadk — Sun, 26 May 2024 07:14:08 GMT

hy , i found many great solutions from you. Iam trying to integrate a custom map to my ionic app and i given the tilelayer url while initialising like follows and it works on web. but in mobile its showing 4965.a94c2e5e3a97c8ce.js:1 [esri.layers.TileLayer] #load() Failed to load layer . DOMException: The source image could not be decoded.[esri.views.2d.layers.TileLayerView2D] like these.

const layer = new TileLayer({

id: 'moi',

title: 'خريطة وزارة الداخلية',

url: 'here is my custom map url created with arcgis',

});

this.MOImap = new Map({

basemap: new Basemap({

id: 'MOI',

baseLayers: [layer],

}),

});

this.MOIview = new MapView({

container: 'previewMap', // Ensure this matches the id of your map container element

map: this.MOImap,

zoom: 4,

center: [this.longitude, this.latitude],

});

this.MOIview.when(async () => {

await this.addMarker(this.longitude, this.latitude);

});

can you please help ?