void initializePersistenceAdvisor() {
    persistenceAdvisor.initialize();

    List<PartitionedRegion> colocatedWithList =
        ColocationHelper.getColocatedChildRegions(partitionedRegion);
    for (PartitionedRegion childPR : colocatedWithList) {
      ProxyBucketRegion[] childBucketArray = childPR.getRegionAdvisor().getProxyBucketArray();
      if (childBucketArray != null) {
        ProxyBucketRegion childBucket = childBucketArray[getBucketId()];
        if (childBucket.persistenceAdvisor != null) {
          childBucket.persistenceAdvisor.initialize();
        }
      }
    }
  }
Destroy the offline data just for this bucket.
geode-core/src/main/java/org/apache/geode/internal/cache/ProxyBucketRegion.java