@Parameterized.Parameters(name = "{index}: provider={0}")
  public static Iterable<Object[]> data() {
    return Arrays.asList(new Object[] { "filesystem" }, new Object[] { "asyncfs" });
  }
Ensure configuration changes are having an effect on WAL. There is a lot of reflection around WAL
setup; could be skipping Configuration changes.
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestWALConfiguration.java