protected void createSenderPRs(int redundancy) {
    vm4.invoke(
        () -> WANTestBase.createPartitionedRegion(testName, "ln", redundancy, 10, isOffHeap()));
    vm5.invoke(
        () -> WANTestBase.createPartitionedRegion(testName, "ln", redundancy, 10, isOffHeap()));
    vm6.invoke(
        () -> WANTestBase.createPartitionedRegion(testName, "ln", redundancy, 10, isOffHeap()));
    vm7.invoke(
        () -> WANTestBase.createPartitionedRegion(testName, "ln", redundancy, 10, isOffHeap()));
  }
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