public void start(Map<Object, Object> params) {
   parseParams(params);
   nodeCache.resize(maxNodeCacheSize);
   relCache.resize(maxRelCacheSize);
   if (useAdaptiveCache) {
     cacheManager.registerCache(nodeCache, adaptiveCacheHeapRatio, minNodeCacheSize);
     cacheManager.registerCache(relCache, adaptiveCacheHeapRatio, minRelCacheSize);
     cacheManager.start(params);
   }
 }