Hi, All.

I have tried most of the OS in "OVZ Seattle - Java" plan. In system, they show the swap size is 512MB.

However, the used swap is fixed to 0, and the free swap is always 512MB. I think the swap is not working at all.  And the process in system always got error for the insufficient RAM. 

Can someone fix the swap problem?

Thank you.

That plan do not come with any Swap, it is old OpenVZ. The system only support swap for Xen.