Issue with Clustering function

[trongnotfound]

Hi Mod,

I have an error when trying cluster as picture below. Firewall is still opening on both NxFilter, how can I fix that?

[support200]

Whatever it is, something blocks TCP/19004 on your master node. Try 'telnet master-node-ip 19004' on your slave node's cmd.

Yod didn't add any IP on 'System > Clustering > Slave IP'? If you added your slave IP there, it might appear with a different IP to your master node. In that case, you may see some log on your master node side.

[trongnotfound]

Yes, you're right. I don't know why TCP 19004 not working on my server (19003, 19002, and other ports are still normal). It's really strange, do you have any suggestions?

[support200]

On your master node, do you see 'MM, NodeListener started.' in your log file when you restart it?

[support200]

And did you change 'Run Mode' on 'System > Clustering' on your master node? You have to restart it when you change it.

[trongnotfound]

Yes, I saw it when restart.

[trongnotfound]

And did you change 'Run Mode' on 'System > Clustering' on your master node? You have to restart it when you change it.

Yes. I already change Run mode to 'Run as Master'

[support200]

Then try 'telnet localhost 19004' on your master node.

[trongnotfound]

Then try 'telnet localhost 19004' on your master node.

I tried to reboot my machine and finally port TCP 19004 went up, When I restart slave node, log on master node received the status of slave node. But on the GUI, I didn't see any slave node status.
And I can't go to the slave node GUI anymore.

[support200]

Slave node doesn't have GUI as you need to change settings on your master node GUI. Even if you log in, you only can change 'Run Mode'. The stats on master node updates once in a minute.

[trongnotfound]

Slave node doesn't have GUI as you need to change settings on your master node GUI. Even if you log in, you only can change 'Run Mode'. The stats on master node updates once in a minute.

Yes, but I can't even see the login page. When slave node joins the cluster, I cannot use any function because all the ports automatically closed as below

[trongnotfound]

And on Master node GUI, I still don't see any status of slave node even though 30mins pass by.

[support200]

You need to see this kind of log once in a minute on your master node, 'NodeListener.SockHandler.dealHello, line =..'.

I just installed a cluster and I can login to slave node GUI without a problem. Of course, there's only 'System > Clustering' menu.

Why don't you just stop your firewall for testing?

[trongnotfound]

Finally, I found what causes the issue - 2 machines have the same 'hostname' so whenever the slave node connects to master node simply slave node lost all the connections (slave node connects to themselves I guess).
Btw thanks for your instant support <3

[support200]

Good to hear that. Will be helpful to others.