@Override
    public void beforeSwitchingOplog() {
      if (notifyRoller) {
        synchronized (notification) {
          proceedForRolling = true;
          notification.notifyAll();
        }
      }
    }
Flag to decide whether we want to allow roller to run
geode-core/src/integrationTest/java/org/apache/geode/internal/cache/DiskAccessExceptionDisablesServerRegressionTest.java