Why I can not acquire the endpoint information of other role running in the same hosted service from a role?

Question

Hi all,

I want to retrieve the endpoint information of other role running in the same hosted service from a instance of different role. How can I do that?

It seems that When I use :
                       var  endpoints = RoleEnvironment.Roles["RoleName"].Instances
                                  .Select(i => i.InstanceEndpoints["RoleName"]).ToArray();

it give me an empty array. I found that .Instances has already return 0 element.

Do anybody know the issue is normal, or it is the problem of my code?

 

Yours sincerely,

Jessie

 

Answer 1

BTW,

The endpoint I want to get is a Input Endpoint.

I know from that

http://social.msdn.microsoft.com/Forums/en/windowsazure/thread/35007aac-3cd1-4207-8952-a6878cf72d3e

the reason that why I get 0 instances returned. But even when I can the instance I want, I still can not get the Input Endpoint.

 

Jessie

 

 

Answer 2

The following is documented:

A role must define at least one internal endpoint in order for its set of instances to be known at runtime.

This means that unless a role defines an internal endpoint you will not be able to enumerate its instances from another role. Consequently, the observed behavior is correct.

 

Answer 3

Hi Neil,

Thank you. I have tried your suggestion.

When I add the internal endpoint to the role, I did enumerate the instances of the role.

But from other role, I still can not find the external input endpoint from the enumeration and it seem that I can only get the information of the internal endpoint I defines.

My question is do you know whether Windows Azure supports a role can comunicate other role by using the ipendpoint of input endpoint?

Thank you.

 

Jessie

  

Answer 4

My question is do you know whether Windows Azure supports a role can comunicate other role by using the ipendpoint of input endpoint?

I believe the only way to access the input endpoint of another role is to come in through the load balancer just like an external service or user.