[infinispan-issues] [JBoss JIRA] (ISPN-6771) HotRod Client - TcpTransportFactory - update topology issue with multiple caches

[Jean-Francois LARTAUD (JIRA)]

Jean-Francois LARTAUD created ISPN-6771:
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             Summary: HotRod Client - TcpTransportFactory - update topology issue with multiple caches
                 Key: ISPN-6771
                 URL: https://issues.jboss.org/browse/ISPN-6771
             Project: Infinispan
          Issue Type: Bug
          Components: hot
    Affects Versions: 8.2.2.Final, 9.0.0.Alpha2
         Environment: Infinispan server 8.2.2.Final
Hot rod client (Java) : 8.2.2.Final 


            Reporter: Jean-Francois LARTAUD


After debugging : 
In TcpTransportFactory, the topologyInfo is global (whatever the number of caches), the balancing strategies are defined by cache.

* For the 1st cache, the servers list is updated (org.infinispan.client.hotrod.impl.transport.tcp.TcpTransportFactory#updateServers(java.util.Collection<java.net.SocketAddress>, byte[], boolean), the topologyInfo is updated.
** The new servers list is returned only if servers have been added.
** As this list is not empty, the balancy strategy for the first cache is updated.
* For the other caches, the server list is updated by calling the same "updateServers" method, the "updateTopologyInfo" method is called
** But as the topologyInfo has been already updated for the 1st cache, it returns "Collections.emptyList();"
** The associated balancing strategies are not updated.

{code}
public void updateServers(Collection<SocketAddress> newServers, byte[] cacheName, boolean quiet) {
      synchronized (lock) {
         Collection<SocketAddress> servers = updateTopologyInfo(newServers, quiet);
        //  
        if (!servers.isEmpty()) {
            FailoverRequestBalancingStrategy balancer = getOrCreateIfAbsentBalancer(cacheName);
            balancer.setServers(servers);
         }
      }
   }
{code}



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