| import time | |
| import pandas as pd | |
| import numpy as np | |
| import grizzly.grizzly as gr | |
| verbosity = False | |
| #data_path = "/data/0.tsv" | |
| #edges = pd.read_csv(data_path, delimiter='\t', encoding='utf-8', header=None, dtype={'0': np.int64, '1': np.int64}, index_col=None) | |
| #links = list(zip(edges[0], edges[1])) | |
| links = [(1, 2),(1, 3),(1, 4),(2, 1),(2, 3),(3, 2)] |
| # Copyright 2016 The TensorFlow Authors. All Rights Reserved. | |
| # | |
| # Licensed under the Apache License, Version 2.0 (the "License"); | |
| # you may not use this file except in compliance with the License. | |
| # You may obtain a copy of the License at | |
| # | |
| # http://www.apache.org/licenses/LICENSE-2.0 | |
| # | |
| # Unless required by applicable law or agreed to in writing, software | |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| import me.prettyprint.cassandra.serializers.ObjectSerializer; | |
| import me.prettyprint.cassandra.service.ThriftCfDef; | |
| import me.prettyprint.hector.api.*; | |
| import me.prettyprint.hector.api.beans.HColumn; | |
| import me.prettyprint.hector.api.ddl.*; | |
| import me.prettyprint.hector.api.factory.HFactory; | |
| import me.prettyprint.hector.api.mutation.Mutator; | |
| import me.prettyprint.hector.api.query.QueryResult; | |
| import org.slf4j.*; |
| import org.scalatest.FunSuite | |
| import org.nd4j.api.Implicits._ | |
| import org.nd4j.linalg.api.ndarray.INDArray | |
| import org.nd4j.linalg.factory.Nd4j | |
| import scala.language.implicitConversions | |
| class Main$Nd4jPerformanceTest extends FunSuite { | |
| test("ND4j.map.test") { |
One of the very good design decisions Presto designers made is that it's loosely coupled from storages.
Presto is a distributed SQL executor engine, and doesn't manager schema or metadata of tables by itself. It doesn't manage read data from storage by itself. Those businesses are done by plugins called Connector. Presto comes with Hive connector built-in, which connects Hive's metastore and HDFS to Presto.
We can connect any storages into Presto by writing connector plugins.