@RestrictedApi(explanation = "Should only be called in tests", link = "",
      allowedOnPath = ".*/src/test/.*")
  WALProvider getReplicationProvider() throws IOException {
    return replicationProvider.getProvider();
  }
Tell the underlying WAL providers to shut down, but do not clean up underlying storage. If you
are not ending cleanly and will need to replay edits from this factory's wals, use this method
if you can as it will try to leave things as tidy as possible.
hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALFactory.java