@Override
        public void beforeFailoverByCacheClientUpdater(ServerLocation epFailed) {
          try {
            Thread.sleep(300000);
          } catch (InterruptedException ie) {
            // expected - test will shut down the cache which will interrupt
            // the CacheClientUpdater thread that invoked this method
            Thread.currentThread().interrupt();
          }
        }
@param connectedServers is the expected number of connected servers (1 or more)
@param redundantServers is the expected number of redundant servers (0 or more)
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/tier/sockets/RedundancyLevelTestBase.java