@Test
  public void testCompactionTimestamps() throws Exception {
    createTableWithDefaultConf(tableName);
    try (Table table = conn.getTable(tableName)) {
      long ts = admin.getLastMajorCompactionTimestamp(tableName);
    }
  }
HBASE-19496 noticed that the RegionLoad/ServerLoad may be corrupted if rpc server reuses the
bytebuffer backed, so this test call the Admin#getLastMajorCompactionTimestamp() to invoke
HMaster to iterate all stored server/region loads.
hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestServerLoadDurability.java