Accessing pool members by IP/PORT in v9x?

The underlying architecture in 9.x changed to not include Node Servers (addr:port) as independent objects. They now only exist within the context of the pool that they are defined. So, now if you disable a node server it can still be enabled in another pool.

We now have only Node Addresses (addr) (accessible via the LocalLB::NodeAddress interface) at the top level. So, you can enable/disable an entire address at a global level, just not a address:port combination.

With that being said, there are several things you can do. You can query all the pools with LocalLB::Pool::get_list() and pass that into LocalLB::Pool::get_member() to return you all the members defined on the system. Then you can use the LocalLB::PoolMember interface to query or set the status of the members.

In 9.x the methods for controlling the state have changed a bit as well. They are:

 SessionStatus[] get/set_session_status( 
     in String[] node_addresses 
 ); 
  
 and 
  
 MonitorStatus[] get/set_monitor_status( 
     in String[] node_addresses 
 );

get/set_session_status() will query or set whether or not new sessions are allowed on the address. get/set_monitor_state() will query or set whether or not any traffic is allowed on the address.

Alternately, maybe just the address is all you care about as you are only running a single service on each backend node or you care if any of the running services is down. If that is the case, then you can use the LocalLB::NodeAddress to do what you were doing before.

Hopefully this helps. If not, post your application logic and I'll see what I can do to help out further.

-Joe