Could not connect to app server for remote client [Failed to connect to any server.]

[sachin.dhingra]

I have a client application which it needs to access the connection factory, topic & queue on my JBOSS EAP 6.1.0 application server which is on different box.

In my client code when i use the providerURL as "remote://<box-name>:4447" it is giving below error:

javax.naming.NamingException: Failed to connect to any server. Servers tried: [remote://<box-name>:4447]
    at org.jboss.naming.remote.client.HaRemoteNamingStore.failOverSequence(HaRemoteNamingStore.java:213)
    at org.jboss.naming.remote.client.HaRemoteNamingStore.namingStore(HaRemoteNamingStore.java:144)
    at org.jboss.naming.remote.client.HaRemoteNamingStore.namingOperation(HaRemoteNamingStore.java:125)
    at org.jboss.naming.remote.client.HaRemoteNamingStore.lookup(HaRemoteNamingStore.java:241)
    at org.jboss.naming.remote.client.RemoteContext.lookup(RemoteContext.java:79)
    at org.jboss.naming.remote.client.RemoteContext.lookup(RemoteContext.java:83)
    at javax.naming.InitialContext.lookup(Unknown Source)

But when I moved my client code to the box where the JBOSS server is installed and changed the providerURL as "remote://localhost:4447", then it worked fine.

Client code has below settings:

InitialContextFactory=org.jboss.naming.remote.client.InitialContextFactory
ProviderURL=remote://<Box-name>:4447

I am not sure what else to be changed.

Attached is the standalone.xml file.

Any help is appreciated.

[sachin.dhingra]

I have updated my standalone.xml file as:

     1. Added new interface "any" and change the "public" interface to use the IP address of the box

<interface name="public">
            <inet-address value="${jboss.bind.address:10.0.10.176}"/>
        </interface>
        <interface name="unsecure">
            <inet-address value="${jboss.bind.address.unsecure:127.0.0.1}"/>
        </interface>
        <interface name="any">
            <any-address/>
        </interface>

     2. Changed the "socket-binding-group"  to use the default-interface="any" as shown below but socket-binding name="messaging" &  socket-binding name="remoting" as public interface.

<socket-binding-group name="standard-sockets" default-interface="any" port-offset="${jboss.socket.binding.port-offset:0}">
        <socket-binding name="management-native" port="${jboss.management.native.port:9999}"/>
        <socket-binding name="management-http" port="${jboss.management.http.port:9990}"/>
        <socket-binding name="management-https" port="${jboss.management.https.port:9443}"/>
        <socket-binding name="ajp" port="8009"/>
        <socket-binding name="http" port="8080"/>
        <socket-binding name="https" port="8443"/>
        <socket-binding name="jacorb" interface="unsecure" port="3528"/>
        <socket-binding name="jacorb-ssl" interface="unsecure" port="3529"/>
        <socket-binding name="messaging" interface="public" port="5445"/>
        <socket-binding name="messaging-group" port="0" multicast-address="${jboss.messaging.group.address:231.7.7.7}" multicast-port="${jboss.messaging.group.port:9876}"/>
        <socket-binding name="messaging-throughput" port="5455"/>
        <socket-binding name="remoting" interface="public" port="4447"/>
        <socket-binding name="txn-recovery-environment" port="4712"/>
        <socket-binding name="txn-status-manager" port="4713"/>
        <outbound-socket-binding name="mail-smtp">
            <remote-destination host="<box-name>" port="25"/>
        </outbound-socket-binding>
    </socket-binding-group>

Now i could able to see below messages in log file:

09:28:32,901 INFO  [org.jboss.as.remoting] (MSC service thread 1-1) JBAS017100: Listening on 10.0.10.176:4447

I could able to do the client connection from same box by providing the below:

ProviderURL=remote://<Box-name>:4447  

But when i did the same thing from other box in same network, it is still giving me same error:

javax.naming.NamingException: Failed to connect to any server. Servers tried: [remote://<box-name>:4447]  
    at org.jboss.naming.remote.client.HaRemoteNamingStore.failOverSequence(HaRemoteNamingStore.java:213)  
    at org.jboss.naming.remote.client.HaRemoteNamingStore.namingStore(HaRemoteNamingStore.java:144)  
    at org.jboss.naming.remote.client.HaRemoteNamingStore.namingOperation(HaRemoteNamingStore.java:125)  
    at org.jboss.naming.remote.client.HaRemoteNamingStore.lookup(HaRemoteNamingStore.java:241)  
    at org.jboss.naming.remote.client.RemoteContext.lookup(RemoteContext.java:79)  
    at org.jboss.naming.remote.client.RemoteContext.lookup(RemoteContext.java:83)  
    at javax.naming.InitialContext.lookup(Unknown Source) 

Please suggest.

[sachin.dhingra]

I got the solution finally by removing security-realm="ApplicationRealm" from below line in standalone.xml file as in my client code i am not setting any user/password.

<connector name="remoting-connector" socket-binding="remoting" security-realm="ApplicationRealm"/>

[sachin.dhingra]

Here one weird observation is, I could able to access from remote client when client is on another windows box but not when my client is on AS/400 (Iseries) box.

I am getting below exception:

javax.naming.NamingException: Failed to connect to any server. Servers tried: [remote://<box-name>:4447]    
    at org.jboss.naming.remote.client.HaRemoteNamingStore.failOverSequence(HaRemoteNamingStore.java:213)    
    at org.jboss.naming.remote.client.HaRemoteNamingStore.namingStore(HaRemoteNamingStore.java:144)    
    at org.jboss.naming.remote.client.HaRemoteNamingStore.namingOperation(HaRemoteNamingStore.java:125)    
    at org.jboss.naming.remote.client.HaRemoteNamingStore.lookup(HaRemoteNamingStore.java:241)    
    at org.jboss.naming.remote.client.RemoteContext.lookup(RemoteContext.java:79)    
    at org.jboss.naming.remote.client.RemoteContext.lookup(RemoteContext.java:83)    
    at javax.naming.InitialContext.lookup(Unknown Source)  

Don't know what difference it makes when accessing from the Iseries box. Client code is just duplicated from windows box where it is working.

My standalone.xml:

<interfaces>
        <interface name="management">
            <inet-address value="${jboss.bind.address.management:127.0.0.1}"/>
        </interface>
        <interface name="public">
            <inet-address value="${jboss.bind.address:10.0.10.176}"/>
        </interface>
        <interface name="unsecure">
            <inet-address value="${jboss.bind.address.unsecure:127.0.0.1}"/>
        </interface>
        <interface name="any">
            <any-address/>
        </interface>
    </interfaces>

    <socket-binding-group name="standard-sockets" default-interface="any" port-offset="${jboss.socket.binding.port-offset:0}">
        <socket-binding name="management-native" port="${jboss.management.native.port:9999}"/>
        <socket-binding name="management-http" port="${jboss.management.http.port:9990}"/>
        <socket-binding name="management-https" port="${jboss.management.https.port:9443}"/>
        <socket-binding name="ajp" port="8009"/>
        <socket-binding name="http" port="8080"/>
        <socket-binding name="https" interface="public" port="8443"/>
        <socket-binding name="jacorb" interface="unsecure" port="3528"/>
        <socket-binding name="jacorb-ssl" interface="unsecure" port="3529"/>
        <socket-binding name="messaging" interface="public" port="5445"/>
        <socket-binding name="messaging-group" port="0" multicast-address="${jboss.messaging.group.address:231.7.7.7}" multicast-port="${jboss.messaging.group.port:9876}"/>
        <socket-binding name="messaging-throughput" port="5455"/>
        <socket-binding name="remoting" interface="public" port="4447"/>
        <socket-binding name="txn-recovery-environment" port="4712"/>
        <socket-binding name="txn-status-manager" port="4713"/>
        <outbound-socket-binding name="mail-smtp">
            <remote-destination host="localhost" port="25"/>
        </outbound-socket-binding>
    </socket-binding-group>

Any help is appreciated.

[wdfink]

If a client on a different box works for you  the server should be correct configured with the security settings and ports.

Also the client code seems correct.

The difference might be the AS/400 configuration, did you have firewalls or other network stuff in between?

You might use telnet to check whether you can connect the port 4447 from the server machine.

[sachin.dhingra]

I have tried telnet to the box where JBOSS server is running using port 4447 from AS/400 box and it just flashed the screen and displayed message:

TELNET session ended.  Connection closed.

Also, in JBOSS server command window, I got the below message:

01:27:43,576 ERROR [org.jboss.remoting.remote.connection] (Remoting "<boxname>" read-1) JBREM000200: Remote connection failed: java.io.IOException: Received a
n invalid message length of -321281

Even I tried telnet from another windows box where I could able to successfully connect using remote client, I got the similar message on JBOSS server console:

01:34:05,882 ERROR [org.jboss.remoting.remote.connection] (Remoting "<boxname>" read-1) JBREM000200: Remote connection failed: java.io.IOException: Received a
n invalid message length of 218762506

This indicates to me that it has connected from AS/400 box also. Isn't it?

I don't have any clue what's wrong now when client is on AS/400 box.

[wdfink]

Yes, that seems to be a successful connection to the server via 4447 port.

The only reason that prevent the client from a connection in this case is

- you use a different server name / ip address, or the name resolution is different

- the java process is blocked for outbound connections

- the java process select a wrong interface or IPv

Is there a similar java option to set "java.net.preferIPv4Stack=true"

[sachin.dhingra]

Wolf,

For your suggestions I have below updates:

You use a different server name / ip address, or the name resolution is different

     - I have used IP addess/fully qualified name but not luck.

The java process is blocked for outbound connections

     - I don't think java process is blocked for outbound connections because i can access other servers from same client having different port.

The java process select a wrong interface or IPv

     - I don't know what is this?

Right now, my way of client invocation doesn't have 'java.net.preferIPv4Stack=true' but I also tried with this but still same results.

[jonathasjose]

Change as below:

<interface name="public"> 

     <inet-address value="${jboss.bind.address:10.0.10.176}" />

</interface>

to

<interface name="public"> 

     <inet-address value="10.0.10.176" />

</interface>

worked for me!