Remote client receives 'connection refused'

[sean171]

JBoss 4.2.0 with JBoss Remoting 2.2.2SP1. The server is started with "-b 0.0.0.0"

We have a remote client using http(s) transport. On upgrading JBoss Remoting to 2.2.2SP11 (tried 2.3.x and 2.5.x also). We start to see 'connection refused' on the remote client side.

Looking at the packet trace when JR 2.2.2SP1 is used, the ip address returned in the proxy contains a valid server IP address (x.y.z.w). However on other versions or patches, the ip address returned in the proxy is all "0.0.0.0".

From the JR doc, the client InvokeLocator will try to connect to "localhost" for no avail.

Any thoughts would be appreciated.

[sean171]

More on this, the EJB is annotated as,

clientBindUrl = "https://0.0.0.0:443/servlet-invoker/SSLServerInvokerServlet"

It seems to be related with http://community.jboss.org/thread/111231

This behavior change is sort of insidious.

[ron_sigal]

Hi Dongjun,

Are you saying that with the same version of the Application Server, with everything else the same, one version of JBossRemoting works and a later version doesn't?  Or is the problem related to an upgrade in the Application Server?

-Ron

[sean171]

We keep AppServer unchanged (4.2.0) and only tried to upgrade jboss-remoting to newer versions. There seems to be a jboss-remoting-integration.jar or some such, which is also kept unchanged. Thx,

[ron_sigal]

Hi Dongjun,

The EJB proxies aren't created by Remoting, so I don't understand how changing the version of Remoting would change affect this behavior.  Have you made any progress?

-Ron

[sean171]

Not knowing much about the interactions between the EJB layer and the remoting  framework. But here's what seems to get the problem going away aftering changing the client binding url,

clientBindUrl = "https://:443/servlet-invoker/SSLServerInvokerServlet"

The difference is to dop the host part of "0.0.0.0". Although the url is *not* a complete one missing the host part, that seems to do the trick.

Thanks.

[ron_sigal]

Thanks, Dongjun.