Clustering is not getting enabled in openfire 4.0.3

Hi All,

I have two hosts, trying to enable the clustering in both of them so I followed the below steps but somehow I'm not able to enable the clustering.

1. Installed the hazelcast plugin in both of them.

2. Tried to enable clustering into clustering tab in Server tab.

But it was not able to enable the clustering(I waited for 15-20 mins too)

Openfire version: 4.0.3

Hazelcast version: 2.2.0

Am I doing anything wrong??

Is there anything, if that time users were using the application?

Please help me out . For any help I would be very grateful.

Thanks,

AKS