}
@Override
public void clearCache(RpcController controller, ClearCacheRequest request,
RpcCallback<ClearCacheResponse> done) {
GlobalCache cache = GlobalCache.getInstance(this.env);
Cache<ImmutableBytesPtr, PTable> metaDataCache =
GlobalCache.getInstance(this.env).getMetaDataCache();
metaDataCache.invalidateAll();
cache.clearTenantCache();
}