Latest Contributions by DerekLaw

Hi Jamal, Which trades off can be made here between having the data stored in ArcSDE geodatabase to allow multiuser environment or storing it in file geodatabase for better performance? It depends on what functionality you want to enable in your web services. You'll need to have your data in an ArcSDE geodatabase to enable web editing. At 10.2, you can have the data stored in a spatially enabled database that is not a geodatabase. I have been posting a question but never got an answer: are Silverlight and Flex (viewers) much faster that ADF? Actually I believe I replied to this question already, please see my 2nd post earlier in this thread. Hope this helps, ... View more

Hi Jamal, Let�??s have the following scenario: In the screenshot below I have a service named �??T5�?� with the following tuning: �?� Minimum number of instances per machine: 1 �?� Maximum number of instances per machine: 2 �?� Isolation: high [ATTACH=CONFIG]24755[/ATTACH] In this particular case, does this mean that the maximum number of users who can access the �??T5�?� service AT THE SAME TIME by a web application is 2? And thus if the third concurrent user tries to access it then his/her web application fails? Think of each instance as a unit of work that can process a request to the service. For example: zooming-in, querying, etc. - each action is a request on the service. So when you have 2 users from 2 different web apps, each making a request to the T5 service, then yes, it is busy and the 3rd user will wait until the 2 requests are completed and an instance becomes available. 1. The distinction between the service (T5, for example) and its instances? Does the instance refer to the ArcSOC.exe generated in the processes of the operating system that takes from the RAM of the machine? If you have high isolation set for the service then yes, each instance equals an ArcSOC process. If you have low isolation set for the service then no; an ArcSOC process can contain multiple instances. And this is a general rule, I believe there can be some exceptions. 2. The distinction between the instance and its processes (instance per process)? I am not sure what you're asking here ... 3. Why the max/min number of instances is set to be PER machine? Which machines? Is it the host (server) machine? Or the client machine that uses the service/instance/process? At Server 10.1 we introduced a new architecture, where you define your instances per machine. Each machine in a multi-machine ArcGIS Server site deployment is a GIS server. When you add a new GIS server to an ArcGIS Server site, you duplicate the available resources for the site (assuming the machines are in the same cluster). And yes, this is for the GIS server machine, not the client machine. 4. It is correct to say that �??high isolation�?� option will be consuming the CPU of the host machine and thus slowing accessing the services by web applications and in return �??low isolation�?� will significantly enhance the speed of accessing the services be web application (while taking much size of the RAM)? From the help topic I referenced in my previous post: The advantage of low isolation is that it increases the number of concurrent instances supported by a single process. Using low isolation can significantly improve memory consumption on your server. However, this improvement comes with some risk. If a process experiences a shutdown or crash, all instances sharing the process are destroyed. Hope this helps, ... View more

Hi Timothy, Is there something special/unusual about the geodatabase name? Perhaps the name contains an odd character? Is the database name longer than 31 characters? (Which I believe is the character limit.) What happens when you try to create and register a new geodatabase with a different name? Does it work? Hope this helps, ... View more

Hi Timothy, ... I have registered the new database all the ways possible, the web manager, Server Properties on Catalog, and double clicking the error.  No matter what I do the same error comes up. Just to confirm, you've registered the geodatabase as a data store for your ArcGIS for Server site following these steps: About registering your data with the server After the data store was added, did you validate it? And when you run the "Analyze" operation on your map before you publish it, you still get the error, is that correct? ... The other thing is I have other databases in this SQL instance that are shared via ArcServer that are registered and working properly. But you've been able to register other geodatabases in the same SQL Server instance as data stores to your ArcGIS for Server site successfully, is that right? Hope this helps, ... View more

Hi Sirisha, Please see my post in this thread, where you posted the same question: Re: GeoEvent Processor Hope this helps, ... View more

Hi Jamal, Please review this help topic to learn more about pooling and instances in web services: Tuning and configuring services Hope this helps, ... View more

Hi Sirisha, I am attempting to create a GeoEvent Service with an Input of type JSON on a REST endpoint (Receive Generic JSON on a REST endpoint). Though I receive no error on the REST URL when tested with Fiddler and I am getting an 202 OK status the GeoEvent Service is not picking up the JSON as an input. An input type of .csv works but input of type JSON is failing. Will there be a fix for this issue in the production version. I am using GeoEvent Processor Extension Beta 2 Please post your question (which is about beta software) in the ArcGIS GeoEvent Processor for Server beta forums, at the Esri Beta Community site. Hope this helps, ... View more

Hi Jamal, What might be the reason behind this crash? Looks like something's not working properly with the Silverlight plugin in your web browser. Perhaps you should try to re-install the Microsoft Silverlight plugin? Hope this helps, ... View more

Hi Jamal, I suspect something in your OS/web server configuration(s) likely must have changed between the time the applications were working and now not working. I haven't heard of the ArcGIS Viewer for Silverlight all of a sudden stop working for no apparent reason. Please contact Esri Technical Support - they are best equipped to help you troubleshoot and diagnose the problem. Good luck, ... View more

Hi Jamal, I have still inquries regarding: �?� Data content: does this include labeling/scales at which data (or labels) are visible/feature class VS images? Please review the documentation that I referenced in my first post in this thread, it discusses these topics. �?� Type of web service: what does this refer to? For example, using cached services might be better for static/background data versus using dynamic services for only your business/operational data. Again, please read the help topic in my first post. �?� # of web services being displayed: does this refer to the number of started (active) services? The more services your web application references, the more likely it may need more time to load them when the web application first loads in your web browser. �?� Type Source data: does this refer to whether the database is SQL/Oracle/�?� Sometimes having your web service source data in a file geodatabase might be faster than having it stored in an ArcSDE geodatabase. why the ADF is still the best in terms of functions available for non-developers? It is almost like the desktop application! Very powerful! When the Silverlight + Flex (viewers) will reach such level? I think your statement that the Web ADF application builder is the "best" is pretty subjective. Yes, it currently does have some more options, but it is built on legacy technology and does not support the new ArcGIS for Server functionality. We are actively working to improve both the Flex and Silverlight Viewers by augmenting their capabilities with each new release. Hope this helps, ... View more

Hi Jamal, This is what surprises me the most: these applications are used to work properly + I do have full permissions + my web server is working fine What might be the issue then? Something in your OS/web server configuration(s) likely must have changed between the time the applications were working and now not working. I haven't heard of the ArcGIS Viewers for Flex and Silverlight all of a sudden stop working for no apparent reason. Please contact Esri Technical Support - they are best equipped to help you troubleshoot and diagnose the problem. Good luck, ... View more

Hi Jamal, Is there any chance to customize this behaviour such that the measure tool provides the local coordinate system of the base map instead of long\lat? Yes. We've provided the code for the tool: Measure Tool Hope this helps, ... View more

Hi Jamal, Did the web applications work previously and have now stopped working? or Are these brand new installations and they simply do not run? Do you have the appropriate admin privileges on your computer when you installed the software? Have you checked the status of your web server? (i.e., is IIS working properly?) Hope this helps, ... View more

Hi Jamal, Is Silverlight and flex are much faster than the .Net (ADF)? Many factors can affect and contribute to web application performance, such as: data content, types of web services, # of web services being displayed, type of source data behind the services, etc. It is difficult to provide a general answer. Be advised that the ArcGIS Server Web ADF technology has been deprecated and we encourage our users to migrate and use the Web Mapping API technologies (JavaScript, Flex, and Silverlight). FYI: ArcGIS 10 and 10.1 Deprecation Plan Hope this helps, ... View more