protected void createSenders(Integer lnPort) {
    createSenders(lnPort, false);
  }
1 region and sender configured on local site and 1 region and a receiver configured on remote
site. Puts to the local region are in progress. Remote region is destroyed in the middle.
geode-wan/src/distributedTest/java/org/apache/geode/internal/cache/wan/parallel/ParallelWANStatsDistributedTest.java