protected void getCrfsAndKrfs(Set<String> crfs, Set<String> krfs) {
    for (File dir : dirs) {
      File[] files = dir.listFiles();
      for (File file : files) {
        if (file.getName().endsWith(".crf")) {
          crfs.add(file.getName().split("\\.")[0]);
        } else if (file.getName().endsWith(".krf")) {
          krfs.add(file.getName().split("\\.")[0]);
        }
      }
    }
  }
Test to make sure that we create missing krfs when we restart the system.
geode-core/src/integrationTest/java/org/apache/geode/internal/cache/DiskRegionAsyncRecoveryJUnitTest.java