boolean isOperationReliable() {
    Operation op = event.getOperation();
    if (!op.isRegionDestroy()) {
      return true;
    }
    // must be a region destroy that is "local" which means
    // Region.localDestroyRegion or Region.close or Cache.clsoe
    // none of these should do reliability checks
    return op.isDistributed();
  }
Return true if this operation needs to check for reliable delivery. Return false if not.
Currently the only case it doesn't need to be is a DestroyRegionOperation doing a "local"
destroy.

@since GemFire 5.0
geode-core/src/main/java/org/apache/geode/internal/cache/DistributedCacheOperation.java