I facing this critical issue which i am not able to solve.When i create map object using ArcGISDynamicMapServiceLayer then things work fine but since i need lot of graphics and want to handle user interactions on map so i want to feature layer to my map but when i add feature layer the browser hangs.

'm using ArcGIS Server 10.1 and the ArcGIS JS API 3.6.

Please let me know what could be the issue how can i avoid feature layer from hanging from my machine.

map = new esri.Map("map");
              var layer = new esri.layers.ArcGISDynamicMapServiceLayer("");
              var url = "";
              var info_content = "<table><tr><td><b>COUNTRY :</b></td><td style='text-align:right'>${COUNTRY}</td></tr></table>";
              var infoTemplate1 = new esri.InfoTemplate("${COUNTRY}", info_content);
              var fl = new esri.layers.FeatureLayer(url, {
                id: "world-regions",
                 outFields: ["COUNTRY"],
                infoTemplate: infoTemplate1

When i see in net panel of my firebug i see some of request being timeout and aborted like below once

Where is the issue is this something to do with lot of graphics of feature layer that browse has to fetch if so what is the solution , else is it related with query feature of feature layer , i tried to query using rest url i added COUNTRY='Australia' i got result immediately so please kindly help with this issue.

I tried setting autoGeneralize as enable but still no help.

Kindly let me know what could be the issue.

Below is the output of rest service [][1]

Name: World_Countries_v3 

Display Field: COUNTRY 

Type: Feature Layer 

Geometry Type: esriGeometryPolygon 

Description: World Countires Map (v3) with the Display field as ISO3A. No changes to the data from V1. 

Definition Expression: 

Copyright Text: 

Default Visibility: true 

MaxRecordCount: 1000

Supported Query Formats: JSON, AMF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: false

Supports Statistics: false

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

XMin: -179.99999999990004
YMin: -89.99999999990001
XMax: 180.00000000010002
YMax: 83.66549107605236
Spatial Reference: 4326  (4326) 

Drawing Info:
Simple Renderer:
Style: esriSFSSolid 
Color: [206, 191, 242, 255] 
Style: esriSLSSolid 
Color: [110, 110, 110, 255] 
Width: 0
Transparency: 0 
Labeling Info:

HasZ: false 

HasM: false 

Has Attachments: false 

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText 

Type ID Field: null

FID ( type: esriFieldTypeOID , alias: FID )
Shape ( type: esriFieldTypeGeometry , alias: Shape )
OBJECTID ( type: esriFieldTypeInteger , alias: OBJECTID )
COUNTRY ( type: esriFieldTypeString , alias: COUNTRY , length: 50 )
CONTINENT ( type: esriFieldTypeString , alias: CONTINENT , length: 13 )
ISO3A ( type: esriFieldTypeString , alias: ISO3A , length: 5 )
ISO2 ( type: esriFieldTypeString , alias: ISO2 , length: 5 )
Shape_Leng ( type: esriFieldTypeDouble , alias: Shape_Leng )
Shape_Area ( type: esriFieldTypeDouble , alias: Shape_Area )

Supported Operations:   Query   Generate Renderer   Return Updates
  • My Feature layer has 220 plogons still it takes too much of time and browser hangs any suggestion will be appriated
    – Anil
    Sep 2, 2013 at 12:10
  • We have projection system as WGS84 , is this issue , pelase let me know how can i resolve this issue i read this " had a look at the REST Services statement and it seems that you have some data in WGS84 (based on their naming convention). Google Earth is based on Web Mercator, as such if you convert your data into Web Mercator then you will see something with the new extent parameters and the services will speed up" from one of the forum post
    – Anil
    Sep 2, 2013 at 14:41

1 Answer 1


This blog addresses your issue: High performance web apps with big datasets as feature layers

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