I use it to prepare for SoaSuite and BPM Bootcamps and one thing I try to do is to use JDeveloper 11g on my Host (OpenSuse 11.2) and connect to the application server in my VirtualBox guest. In fact, that would (probably) be the architecture to use in a real developer environment.
So I changed the network adapter of the VirtualBox VM (in Device Settings) from NAT to "host-only". Then I re-activated the network-adapter in the guest (Oracle Enterprise Linux), to have it query for new ip-settings.As root I queried for the ip-address using ' ifconfig':
[root@soabpm-vm ~]# ifconfig
eth0 Link encap:Ethernet HWaddr 08:00:27:1C:4C:37
inet addr:192.168.56.101 Bcast:192.168.56.255 Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:fe1c:4c37/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:219 errors:0 dropped:0 overruns:0 frame:0
TX packets:192 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:21908 (21.3 KiB) TX bytes:26686 (26.0 KiB)
Interrupt:10 Base address:0xd020
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:2222 errors:0 dropped:0 overruns:0 frame:0
TX packets:2222 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2942937 (2.8 MiB) TX bytes:2942937 (2.8 MiB)
So the ip-address of my vm is '192.168.56.101'.
Then I changed the /etc/hosts file of the VM as:
127.0.0.1 localhost 192.168.56.101 soabpm-vm soapbm-vm.local bpm-vm.local bpm-vm ::1 localhost6.localdomain6 localhost6
And I added the same address in the host file of my OpenSuse host:
192.168.56.101 soabpm-vm soabpm-vm.darwin-it.local
In Jdeveloper 11g I created an application server connection, named "soabpm-vm', added the credentials (weblogic/welcome1), hostname: soabpm-vm, ports 7001/7002, domain name: domain1. And then we test:
Fine. So in my BPM Bootcamp preperations I came to the point I have to map the abstract roles (swimlanes) to LDAP roles/users. Doing so you have to query the users over the application server connection. Choosing the connection it would populate the realm-poplist. In my case it would not.Testing in the JDeveloper within the VM would give me:
So I tried to deploy a SoaProject, that builds fine, but deploying resulted in:
[03:10:41 PM] Error sending deployment request to server AdminServer [localhost:7001] java.net.ConnectException: Connection refused [03:10:41 PM] Error sending deployment request to server AdminServer [localhost:7001] java.net.ConnectException: Connection refused
After a while I noticed 'AdminServer [localhost:7001]'! That's not where I want to connect to! And it is certainly not the host I applied in the Jdev Applicatioin Server dialog.
Apparently the AdminURL of Weblogic is not correctly set during startup. This is set in the config.xml.
This can easily be found as follows:
[oracle@soabpm-vm config]$ cd [oracle@soabpm-vm ~]$ cd bin [oracle@soabpm-vm bin]$ . ./wls_env.sh [oracle@soabpm-vm bin]$ cd $DOMAIN_HOME/config [oracle@soabpm-vm config]$ ls config.xml config.xmlEdit the config.xml and look for:
<external-dns-name>localhost</external-dns-name>Then change it in:
<!--<external-dns-name>localhost</external-dns-name>--> <external-dns-name>soabpm-vm</external-dns-name>
As always it is good practice to backup the config.xml. And after the change of course you'll need to restart the weblogic server.
But then the connection to the AdminServer will work, the realm can be queried and deploying will work.
Important lesson: the hostname in the setting above should not be localhost, but a meaningful host name.that can be resolved on both the SoaSuite server as well as the Client running JDeveloper.
Nice article from my experience this error also occur when you try to connect remote JVM and its not running. see here "Failed to connect to remote VM. Connection refused" or "Connection refused: connect"
ReplyDeleteHi there,
ReplyDeleteIf you select Host only network for dev (virtual) machine, weblogic and soa stack shall not be able to connect to outside world. Just wondering what was your experience?
Hi there,
ReplyDeleteJust wondering if host-only option worked for you. If we select host-only network, weblogic and soa stack shall not be able to communicate with outside work.
Just wondering what was your experience with host only selection
Hi,
ReplyDeleteHost only is meant to work as a network that is confined to only your host-machine. Through that netwok al the VM's running on your host that have a hostonly adapter will be able to connect to each other. Also your host is reachable. It has an address like 192.168.56.1, where the .56. may vary between installations.
For me that suffice. The pro's of the host only is that a request between your host and the VM's or the VM's between each other won't have a round trip through your external router. Also the host only network is up when you're on the move with your laptop(and have no physical network ocnnection).
If you need to be able to do requests from within your VM to the outside, you have two options:
1. NAT
2. Bridged networking.
The first is the simplest. It shares the ip-address of your host. That means that it cannot respond to requests from outside your host to your VM. For that purpose the Bridged Network adapter is meant. This means that the VM gets an ip-address that is reachable from outside your host. So to the network it responds as a standalone PC.
Now I often use a combination of host-only and a bridged. That means that when I'm connected, the VM is connected externally as well. But on the road, the VM is still reachable through the host-only network.
In that combination you might need to look into your routes. See the routing tab in the Networking Administration tool. The host-only adapter (eth0 if it is the first in row), needs to be routed for only the request within the network. In Oracle Linux6 there is a checkbox for that. Otherwise your requests to www.oracle.com for instance might be routed to your host only network adapter instead of your bridged.
Hope this clears it up for you.
Regards,
Martien
Hello Martien,
ReplyDeleteI keep struggling with my VB image of soa suite and connecting to it from a remote JDeveloper. Somehow I cannot get it to work anymore like I have done before.
I set up the hostfiles as you have done. When I go to soabpm-vm:7001 I get the soasuite screen. However when I make it soabpm-vm:7001/em it redirects to www.soasuite-vm.site:7001/em and it doesn't find a page.
Any ideas?