@After
  public void tearDown() throws Exception {
    try {
      cache.close();
    } finally {
      DiskStoreImpl.SET_IGNORE_PREALLOCATE = false;
    }
  }
Verifies that automatic compaction works after cache recovered from oplogs
geode-core/src/integrationTest/java/org/apache/geode/internal/cache/DiskRegionCompactorClearOplogAfterRecoveryIntegrationTest.java