private void createClientCache() {
    clientCacheRule.createClientCache();

    PoolImpl pool = (PoolImpl) PoolManager.createFactory().addServer(hostName, port1)
        .addServer(hostName, port2).addServer(hostName, port3).setSubscriptionEnabled(true)
        .setSubscriptionRedundancy(-1).setSubscriptionMessageTrackingTimeout(54321)
        .setIdleTimeout(-1).setPingInterval(200).create(uniqueName);

    ClientRegionFactory clientRegionFactory =
        clientCacheRule.getClientCache().createClientRegionFactory(ClientRegionShortcut.LOCAL);
    clientRegionFactory.setPoolName(pool.getName());
  }
TRAC #36526: getActiveServers can return wrong answer
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/tier/sockets/GetConnectedServerCountRegressionTest.java