1034 lines
42 KiB
C#
1034 lines
42 KiB
C#
/*
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Copyright (c) Microsoft Corporation
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All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
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compliance with the License. You may obtain a copy of the License
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at http://www.apache.org/licenses/LICENSE-2.0
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THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER
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EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OR CONDITIONS OF
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TITLE, FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABLITY OR NON-INFRINGEMENT.
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See the Apache Version 2.0 License for specific language governing permissions and
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limitations under the License.
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*/
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Diagnostics;
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using System.Linq.Expressions;
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using System.Reflection;
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using System.IO;
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using System.Security.Cryptography.X509Certificates;
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using System.Threading.Tasks;
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using Microsoft.Research.DryadLinq.Internal;
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using Microsoft.Research.Peloponnese.ClusterUtils;
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using Microsoft.Research.Peloponnese.Storage;
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namespace Microsoft.Research.DryadLinq
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{
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/// <summary>
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/// The executor to run DryadLINQ jobs. The current release only supports Dryad.
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/// </summary>
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public enum ExecutorKind
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{
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/// <summary>
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/// Run DryadLINQ using Dryad.
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/// </summary>
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DRYAD
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}
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/// <summary>
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/// The service platforms where you can run DryadLINQ.
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/// </summary>
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public enum PlatformKind
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{
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/// <summary>
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/// run directly on a YARN cluster
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/// </summary>
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YARN_NATIVE,
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/// <summary>
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/// run on a YARN cluster in Azure HDInsight
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/// </summary>
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YARN_AZURE,
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/// <summary>
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/// run locally at client side
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/// </summary>
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LOCAL
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}
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/// <summary>
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/// Base interface for cluster types that the DryadLinqContext constructor can accept.
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/// </summary>
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public interface DryadLinqCluster
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{
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/// <summary>
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/// Gets the service platform of this cluster.
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/// </summary>
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PlatformKind Kind { get; }
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/// <summary>
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/// Gets the hostname of the head node of the cluster.
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/// </summary>
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string HeadNode { get; }
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/// <summary>
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/// Gets the client DFS interface.
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/// </summary>
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IDfsClient DfsClient { get; }
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/// <summary>
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/// Gets the client cluster interface.
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/// </summary>
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/// <param name="context">An instnace of DryadLinqContext</param>
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/// <returns>The client interface to the cluster</returns>
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ClusterClient Client(DryadLinqContext context);
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/// <summary>
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/// Makes a new unique URI for storing a dataset in the DFS.
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/// </summary>
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/// <param name="path">A user provided local path</param>
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/// <returns>A new unique URI that can be used to store a dataset</returns>
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Uri MakeDefaultUri(string path);
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}
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/// <summary>
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/// The interface for a YARN native cluster.
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/// </summary>
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internal class DryadLinqYarnCluster : DryadLinqCluster
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{
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/// <summary>
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/// The hostname of the computer where the YarnLauncher program is running
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/// </summary>
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public string HeadNode { get; set; }
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/// <summary>
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/// The port where the YarnLauncher program is listening
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/// </summary>
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public int LauncherPort;
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/// <summary>
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/// The hostname of the computer where the default HDFS instance is running
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/// </summary>
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public string NameNode;
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/// <summary>
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/// The port that the Hdfs protocol is listening on
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/// </summary>
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public int HdfsPort;
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/// <summary>
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/// The port that the WebHdfs protocol is listening on
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/// </summary>
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public int WebHdfsPort;
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private WebHdfsClient _dfsClient;
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private NativeYarnClient _clusterClient;
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/// <summary>
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/// Make a new cluster object representing a YARN cluster with default ports
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/// </summary>
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/// <param name="headNode">The computer where the YarnLauncher is running</param>
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public DryadLinqYarnCluster(string headNode)
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{
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HeadNode = headNode;
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LauncherPort = 8471;
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NameNode = headNode;
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HdfsPort = 9000;
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WebHdfsPort = 50070;
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_dfsClient = null;
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_clusterClient = null;
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}
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public PlatformKind Kind { get { return PlatformKind.YARN_NATIVE; } }
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public IDfsClient DfsClient {
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get
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{
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if (_dfsClient == null)
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{
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_dfsClient = new WebHdfsClient(HeadNode, HdfsPort, WebHdfsPort);
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}
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return _dfsClient;
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}
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}
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public ClusterClient Client(DryadLinqContext context)
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{
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if (_clusterClient == null)
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{
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_clusterClient = new NativeYarnClient(HeadNode, HdfsPort, LauncherPort);
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}
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return _clusterClient;
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}
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public Uri MakeDefaultUri(string path)
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{
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return _dfsClient.MakeDfsUri(path);
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}
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}
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/// <summary>
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/// The interface for a YARN Azure cluster.
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/// </summary>
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internal class DryadLinqAzureCluster : DryadLinqCluster
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{
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/// <summary>
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/// The name of the HDInsight cluster
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/// </summary>
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public string HeadNode { get { return _cluster.Result.Name; } }
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private readonly AzureSubscriptions _azureSubscriptions;
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private readonly Task<AzureCluster> _cluster;
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private readonly Task<AzureDfsClient> _dfsClient;
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private Task<AzureYarnClient> _clusterClient;
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/// <summary>
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/// Make a new cluster object representing an Azure HDInsight cluster, reading the details
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/// from a subscription stored in the Powershell defaults.
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/// </summary>
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/// <param name="clusterName">The name of the HDInsight cluster</param>
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public DryadLinqAzureCluster(string clusterName)
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{
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// start fetching details about the subscriptions, available clusters, etc.
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_azureSubscriptions = new AzureSubscriptions();
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_cluster = _azureSubscriptions.GetClusterAsync(clusterName);
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_dfsClient = _cluster.ContinueWith(c => new AzureDfsClient(c.Result.StorageAccount, c.Result.StorageKey, "staging"));
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}
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/// <summary>
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/// Make a new cluster object representing an Azure HDInsight cluster, specifying the details
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/// manually.
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/// </summary>
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/// <param name="clusterName">The name of the HDInsight cluster</param>
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/// <param name="storageAccount">The storage account to use for staging job resources</param>
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/// <param name="storageContainer">The storage account container to use for staging job resources</param>
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/// <param name="storageKey">The storage account key, which will be looked up in the subscription if null</param>
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public DryadLinqAzureCluster(string clusterName, string storageAccount, string storageContainer, string storageKey = null)
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{
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// start fetching details about the subscriptions, available clusters, etc.
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_azureSubscriptions = new AzureSubscriptions();
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if (storageKey != null)
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{
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_azureSubscriptions.AddAccount(storageAccount, storageKey);
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}
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_cluster = _azureSubscriptions.GetClusterAsync(clusterName)
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.ContinueWith(t => { t.Result.SetStorageAccount(storageAccount, storageKey); return t.Result; });
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_dfsClient = _cluster.ContinueWith(c => new AzureDfsClient(c.Result.StorageAccount, c.Result.StorageKey, storageContainer));
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}
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/// <summary>
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/// Make a new cluster object representing an Azure HDInsight cluster, specifying the details
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/// manually.
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/// </summary>
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/// <param name="clusterName">The name of the HDInsight cluster</param>
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/// <param name="subscriptionId">The ID of the subscription to fetch cluster details from</param>
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/// <param name="certificateThumbprint">The thumbprint of the certificate associated with the subscription</param>
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public DryadLinqAzureCluster(string clusterName, string subscriptionId, string certificateThumbprint)
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{
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// start fetching details about the subscriptions, available clusters, etc.
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_azureSubscriptions = new AzureSubscriptions();
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_azureSubscriptions.AddSubscription(subscriptionId, certificateThumbprint);
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_cluster = _azureSubscriptions.GetClusterAsync(clusterName);
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_dfsClient = _cluster.ContinueWith(c => new AzureDfsClient(c.Result.StorageAccount, c.Result.StorageKey, "staging"));
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}
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/// <summary>
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/// Make a new cluster object representing an Azure HDInsight cluster, specifying the details
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/// manually.
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/// </summary>
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/// <param name="clusterName">The name of the HDInsight cluster</param>
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/// <param name="subscriptionId">The ID of the subscription to fetch cluster details from</param>
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/// <param name="certificate">The certificate associated with the subscription</param>
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public DryadLinqAzureCluster(string clusterName, string subscriptionId, X509Certificate2 certificate)
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{
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// start fetching details about the subscriptions, available clusters, etc.
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_azureSubscriptions = new AzureSubscriptions();
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_azureSubscriptions.AddSubscription(subscriptionId, certificate);
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_cluster = _azureSubscriptions.GetClusterAsync(clusterName);
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_dfsClient = _cluster.ContinueWith(c => new AzureDfsClient(c.Result.StorageAccount, c.Result.StorageKey, "staging"));
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}
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/// <summary>
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/// Make a new cluster object representing an Azure HDInsight cluster, specifying the details
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/// manually.
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/// </summary>
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/// <param name="clusterName">The name of the HDInsight cluster</param>
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/// <param name="subscriptionId">The ID of the subscription to fetch cluster details from</param>
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/// <param name="certificateThumbprint">The thumbprint of the certificate associated with the subscription</param>
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/// <param name="storageAccount">The storage account to use for staging job resources</param>
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/// <param name="storageContainer">The storage account container to use for staging job resources</param>
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/// <param name="storageKey">The storage account key, which will be looked up in the subscription if null</param>
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public DryadLinqAzureCluster(string clusterName, string subscriptionId, string certificateThumbprint,
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string storageAccount, string storageContainer, string storageKey = null)
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{
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// start fetching details about the subscriptions, available clusters, etc.
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_azureSubscriptions = new AzureSubscriptions();
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if (storageKey != null)
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{
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_azureSubscriptions.AddAccount(storageAccount, storageKey);
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}
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_azureSubscriptions.AddCluster(clusterName, storageAccount, storageKey, subscriptionId, certificateThumbprint);
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_cluster = _azureSubscriptions.GetClusterAsync(clusterName);
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_dfsClient = _cluster.ContinueWith(c => new AzureDfsClient(c.Result.StorageAccount, c.Result.StorageKey, storageContainer));
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}
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/// <summary>
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/// Make a new cluster object representing an Azure HDInsight cluster, specifying the details
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/// manually
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/// </summary>
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/// <param name="clusterName">The name of the HDInsight cluster</param>
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/// <param name="subscriptionId">The ID of the subscription to fetch cluster details from</param>
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/// <param name="certificate">The certificate associated with the subscription</param>
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/// <param name="storageAccount">The storage account to use for staging job resources</param>
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/// <param name="storageContainer">The storage account container to use for staging job resources</param>
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/// <param name="storageKey">The storage account key, which will be looked up in the subscription if null</param>
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public DryadLinqAzureCluster(string clusterName, string subscriptionId, X509Certificate2 certificate,
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string storageAccount, string storageContainer, string storageKey = null)
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{
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// start fetching details about the subscriptions, available clusters, etc.
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_azureSubscriptions = new AzureSubscriptions();
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if (storageKey != null)
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{
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_azureSubscriptions.AddAccount(storageAccount, storageKey);
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}
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_azureSubscriptions.AddCluster(clusterName, storageAccount, storageKey, subscriptionId, certificate);
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_cluster = _azureSubscriptions.GetClusterAsync(clusterName);
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_dfsClient = _cluster.ContinueWith(
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c => new AzureDfsClient(c.Result.StorageAccount, c.Result.StorageKey, storageContainer));
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}
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public PlatformKind Kind { get { return PlatformKind.YARN_AZURE; } }
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internal AzureSubscriptions Subscriptions { get { return _azureSubscriptions; } }
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public AzureCluster Cluster { get { return _cluster.Result; } }
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public IDfsClient DfsClient { get { return _dfsClient.Result; } }
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public ClusterClient Client(DryadLinqContext context)
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{
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if (_clusterClient == null)
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{
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_clusterClient = _dfsClient.ContinueWith(
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c => new AzureYarnClient(_azureSubscriptions, c.Result, context.PeloponneseHomeDirectory, Cluster.Name));
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}
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return _clusterClient.Result;
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}
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public Uri MakeDefaultUri(string path)
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{
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return AzureUtils.ToAzureUri(_dfsClient.Result.AccountName, _dfsClient.Result.ContainerName, path, null, _dfsClient.Result.AccountKey);
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}
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}
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/// <summary>
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/// Represents the context necessary to prepare and execute a DryadLinq Query,
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/// </summary>
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/// <remarks>
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/// <para>
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/// DryadLinqContext is the main entry point for the DryadLINQ framework.
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/// The context that is maintained by a DryadLinqContext instance includes
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/// configuration information.
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/// </para>
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/// <para>
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/// A DryadLinqContext may be reused by multiple queries and query executions.
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/// </para>
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/// <para>
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/// A DryadLinqContext may hold open connections to cluster services.
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/// To release these connections, call DryadLinqContext.Dispose().
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/// </para>
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/// </remarks>
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public class DryadLinqContext : IDisposable, IEquatable<DryadLinqContext>
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{
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private ExecutorKind _executorKind = ExecutorKind.DRYAD;
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private PlatformKind _platformKind = PlatformKind.LOCAL;
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private string _headNode;
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private DryadLinqCluster _clusterDetails;
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private AzureSubscriptions _azureSubscriptions;
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private Version _clientVersion;
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private CompressionScheme _intermediateDataCompressionScheme = CompressionScheme.None;
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private CompressionScheme _outputCompressionScheme = CompressionScheme.None;
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private bool _compileForVertexDebugging = false; // Ship PDBs + No optimization
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private string _jobFriendlyName;
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private int? _jobMinNodes;
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private int? _jobMaxNodes;
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private string _nodeGroup;
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private int? _jobRuntimeLimit;
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private bool _localDebug = false;
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private bool _localExecution = false;
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private string _jobUsername = null;
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private string _jobPassword = null;
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private QueryTraceLevel _runtimeTraceLevel = QueryTraceLevel.Error;
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private string _graphManagerNode;
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private bool _enableSpeculativeDuplication = true;
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private bool _selectOrderPreserving = false;
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private bool _matchClientNetFrameworkVersion = true;
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private bool _multiThreading = true;
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private string _partitionUncPath = null;
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private string _storageSetScheme = null;
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private DryadLinqStringDictionary _jobEnvironmentVariables = new DryadLinqStringDictionary();
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private DryadLinqStringList _resourcesToAdd = new DryadLinqStringList();
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private DryadLinqStringList _resourcesToRemove = new DryadLinqStringList();
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private bool _forceGC = false;
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private bool _isDisposed = false;
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private string _dryadHome;
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private string _peloponneseHome;
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private static DryadLinqCluster MakeCluster(string clusterName, PlatformKind kind)
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{
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if (kind == PlatformKind.LOCAL)
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{
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throw new DryadLinqException("Can't make a cluster of kind LOCAL");
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}
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else if (kind == PlatformKind.YARN_NATIVE)
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{
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return new DryadLinqYarnCluster(clusterName);
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}
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else if (kind == PlatformKind.YARN_AZURE)
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{
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return new DryadLinqAzureCluster(clusterName);
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}
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else
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{
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throw new DryadLinqException("Unknown cluster kind " + kind);
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}
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}
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/// <summary>
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/// Initializes a new instance of the DryadLinqContext class for local execution.
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/// </summary>
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/// <param name="numProcesses">The number of local worker processes that should be started.</param>
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/// <param name="storageSetScheme">The default scheme for storage. Defaults to partitioned file</param>
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public DryadLinqContext(int numProcesses, string storageSetScheme = null)
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{
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this.CommonInit();
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this._platformKind = PlatformKind.LOCAL;
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this._localExecution = true;
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this._headNode = "LocalExecution";
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this._storageSetScheme = storageSetScheme;
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if (String.IsNullOrEmpty(this._storageSetScheme))
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{
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this._storageSetScheme = DataPath.PARTFILE_URI_SCHEME;
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}
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this._jobMinNodes = numProcesses;
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// make an Azure subscriptions object just in case we want to access azure streams from local execution
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this._azureSubscriptions = new AzureSubscriptions();
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}
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/// <summary>
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/// Initializes a new instance of the DryadLinqContext class for a YARN cluster.
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/// </summary>
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/// <param name="clusterName">The head node of the cluster and DFS</param>
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/// <param name="platform">The service platform to run DryadLINQ jobs. Defaults to YARN Azure</param>
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public DryadLinqContext(string clusterName, PlatformKind platform = PlatformKind.YARN_AZURE)
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: this(MakeCluster(clusterName, platform))
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{
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}
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/// <summary>
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/// Initializes a new instance of the DryadLinqContext class for a specified cluster.
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/// </summary>
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/// <param name="cluster">The cluster to run DryadLINQ jobs</param>
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public DryadLinqContext(DryadLinqCluster cluster)
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{
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// Verify that the head node is set
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if (String.IsNullOrEmpty(cluster.HeadNode))
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{
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throw new DryadLinqException(DryadLinqErrorCode.ClusterNameMustBeSpecified,
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SR.ClusterNameMustBeSpecified);
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}
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this.CommonInit();
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this._platformKind = cluster.Kind;
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this._headNode = cluster.HeadNode;
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this._clusterDetails = cluster;
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if (cluster.Kind == DryadLinq.PlatformKind.YARN_NATIVE)
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{
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this._storageSetScheme = DataPath.HDFS_URI_SCHEME;
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// make an Azure subscriptions object just in case we want to access azure streams from the native yarn cluster
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this._azureSubscriptions = new AzureSubscriptions();
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}
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else if (cluster.Kind == DryadLinq.PlatformKind.YARN_AZURE)
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{
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this._storageSetScheme = DataPath.AZUREBLOB_URI_SCHEME;
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DryadLinqAzureCluster azureCluster = cluster as DryadLinqAzureCluster;
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this._azureSubscriptions = azureCluster.Subscriptions;
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}
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}
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private void CommonInit()
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{
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this._peloponneseHome = Peloponnese.ClusterUtils.ConfigHelpers.GetPPMHome(null);
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if (Microsoft.Research.Peloponnese.ClusterUtils.ConfigHelpers.RunningFromNugetPackage)
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{
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this._dryadHome = Microsoft.Research.Peloponnese.ClusterUtils.ConfigHelpers.GetPPMHome(null);
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}
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else
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{
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this._dryadHome = Environment.GetEnvironmentVariable(StaticConfig.DryadHomeVar);
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}
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}
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/// <summary>
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/// Gets and sets the job executor. The current release only supports Dryad.
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/// </summary>
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public ExecutorKind ExecutorKind
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{
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get { return this._executorKind; }
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set { _executorKind = value; }
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}
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/// <summary>
|
|
/// Gets or sets the service platform
|
|
/// </summary>
|
|
public PlatformKind PlatformKind
|
|
{
|
|
get { return _platformKind; }
|
|
set { _platformKind = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the value specifying whether data passed between stages will be compressed.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// The default is true.
|
|
/// </remarks>
|
|
public CompressionScheme IntermediateDataCompressionScheme
|
|
{
|
|
get { return this._intermediateDataCompressionScheme; }
|
|
set { this._intermediateDataCompressionScheme = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the value specifying the compression scheme for output data.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// The default is <see cref="CompressionScheme.None"/>.
|
|
/// </remarks>
|
|
public CompressionScheme OutputDataCompressionScheme
|
|
{
|
|
get { return this._outputCompressionScheme; }
|
|
set { this._outputCompressionScheme = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the value specifying whether to compile code with debugging support.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// If true, vertex code will be compiled with no code-level optimizations and a PDB will be generated.
|
|
/// Also, the query execution job look for and include the PDB associated with every DLL resource
|
|
/// that is part of the submitted job.
|
|
/// <para>The default is false.</para>
|
|
/// </remarks>
|
|
public bool CompileForVertexDebugging
|
|
{
|
|
get { return _compileForVertexDebugging; }
|
|
set { _compileForVertexDebugging = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the bin directory for Dryad.
|
|
/// </summary>
|
|
public string DryadHomeDirectory
|
|
{
|
|
get { return _dryadHome; }
|
|
set { _dryadHome = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the bin directory for Peloponnese.
|
|
/// </summary>
|
|
public string PeloponneseHomeDirectory
|
|
{
|
|
get { return _peloponneseHome; }
|
|
set { _peloponneseHome = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the head node for executing a DryadLinq query.
|
|
/// </summary>
|
|
public string HeadNode
|
|
{
|
|
get { return _headNode; }
|
|
set { _headNode = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the partition UNC path used when constructing a partitioned table.
|
|
/// </summary>
|
|
public string PartitionUncPath
|
|
{
|
|
get { return _partitionUncPath; }
|
|
set { _partitionUncPath = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the cluster object used to run the DryadLINQ query
|
|
/// </summary>
|
|
internal DryadLinqCluster Cluster
|
|
{
|
|
get { return _clusterDetails; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the collection of environment variables associated with the DryadLINQ job.
|
|
/// </summary>
|
|
public IDictionary<string, string> JobEnvironmentVariables
|
|
{
|
|
get { return _jobEnvironmentVariables; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the descriptive name used to describe the DryadLINQ job.
|
|
/// </summary>
|
|
public string JobFriendlyName
|
|
{
|
|
get { return _jobFriendlyName; }
|
|
set { _jobFriendlyName = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the minimum number of cluster nodes for the DryadLINQ job.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// <para>The default is null (no lower limit). May be overriden by cluster settings such as node templates.</para>
|
|
/// </remarks>
|
|
public int? JobMinNodes
|
|
{
|
|
get { return _jobMinNodes; }
|
|
set { _jobMinNodes = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the maximum number of cluster nodes for the DryadLINQ job.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// <para>The default is null (no upper limit). May be overriden by cluster settings such as node templates.</para>
|
|
/// </remarks>
|
|
public int? JobMaxNodes
|
|
{
|
|
get { return _jobMaxNodes; }
|
|
set { _jobMaxNodes = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the name of the compute node group when running on the cluster.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// Creation and management of nodes groups is performed using the Cluster Manager.
|
|
/// </remarks>
|
|
/// <remarks>
|
|
/// <para>The default is null (no node group restriction).</para>
|
|
/// </remarks>
|
|
public string NodeGroup
|
|
{
|
|
get { return _nodeGroup; }
|
|
set { _nodeGroup = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the maximum execution time for the DryadLINQ job, in seconds.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// <para>The default is null (no runtime limit).</para>
|
|
/// </remarks>
|
|
public int? JobRuntimeLimit
|
|
{
|
|
get { return _jobRuntimeLimit; }
|
|
set { _jobRuntimeLimit = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Enables or disables speculative duplication of vertices based on runtime performance analysis.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// <para>The default is true.</para>
|
|
/// </remarks>
|
|
public bool EnableSpeculativeDuplication
|
|
{
|
|
get { return _enableSpeculativeDuplication; }
|
|
set { _enableSpeculativeDuplication = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the value specifying whether to use Local debugging mode.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// <para>
|
|
/// If true, the DryadLINQ query will execute in the current CLR via LINQ-to-Objects.
|
|
/// This mode is particularly useful for debugging user-functions before attempting cluster execution.
|
|
/// LocalDebug mode accesses input and output data as usual.
|
|
/// </para>
|
|
/// <para>
|
|
/// LocalDebug mode does not perform vertex-code compilation.
|
|
/// </para>
|
|
/// <para>The default is false.</para>
|
|
/// </remarks>
|
|
public bool LocalDebug
|
|
{
|
|
get { return _localDebug; }
|
|
set { _localDebug = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the value specifying whether to use Local execution mode.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// <para>
|
|
/// If true, the DryadLINQ Query will execute by forking processes on the local
|
|
/// computer instead of using a cluster. LocalExecution mode accesses HDFS as usual for
|
|
/// input and output data.
|
|
/// </para>
|
|
/// <para>The default is false.</para>
|
|
/// </remarks>
|
|
public bool LocalExecution
|
|
{
|
|
get { return _localExecution; }
|
|
set { _localExecution = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets and sets the value specifying whether a vertex should break into the debugger
|
|
/// </summary>
|
|
public bool DebugBreak
|
|
{
|
|
get
|
|
{
|
|
return this.JobEnvironmentVariables.ContainsKey("DLINQ_DEBUGVERTEX");
|
|
}
|
|
set
|
|
{
|
|
this.JobEnvironmentVariables["DLINQ_DEBUGVERTEX"] = "BREAK";
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Get the list of resources to add to the DryadLINQ job.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// <para>
|
|
/// During query submission, some resources will be detected and added automatically.
|
|
/// It is only necessary to add resources that are not detected automatically.
|
|
/// </para>
|
|
/// <para>
|
|
/// Each resource should be a complete path to a file-based resource accessible
|
|
/// from the local machine.
|
|
/// </para>
|
|
/// </remarks>
|
|
public IList<string> ResourcesToAdd
|
|
{
|
|
get { return _resourcesToAdd; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Get the list of resources to be excluded from the DryadLINQ job.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// <para>
|
|
/// During query submission, some resources will be detected and added automatically.
|
|
/// Remove resources that are detected automatically but that are not required for job execution.
|
|
/// </para>
|
|
/// <para>
|
|
/// Each resource should be a complete path to a file-based resource accessible from the local machine.
|
|
/// </para>
|
|
/// </remarks>
|
|
public IList<string> ResourcesToRemove
|
|
{
|
|
get { return _resourcesToRemove; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the RunAs password for jobs submitted to the cluster.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// <para>The default is null (use the credentials of the current Thread)</para>
|
|
/// </remarks>
|
|
public string JobUsername
|
|
{
|
|
get { return _jobUsername; }
|
|
set { _jobUsername = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the RunAs password for jobs submitted to the cluster.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// <para>The default is null (use the credentials of the current Thread)</para>
|
|
/// </remarks>
|
|
public string JobPassword
|
|
{
|
|
get { return _jobPassword; }
|
|
set { _jobPassword = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the trace level to use for DryadLINQ Query jobs.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// <para>The RuntimeTraceLevel affects the logs produced by all components associated with the execution
|
|
/// of a DryadLINQ Query job.
|
|
/// </para>
|
|
/// <para>The default is QueryTraceLevel.Error</para>
|
|
/// </remarks>
|
|
public QueryTraceLevel RuntimeTraceLevel
|
|
{
|
|
get { return _runtimeTraceLevel; }
|
|
set { _runtimeTraceLevel = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the node that should be used for running the Dryad Graph Manager task.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// If null, the Graph Manager task will run on an arbitrary machine that is allocated to the DryadLINQ job.
|
|
/// </remarks>
|
|
public string GraphManagerNode
|
|
{
|
|
get { return _graphManagerNode; }
|
|
set { _graphManagerNode = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets whether certain operators will preserve item ordering.
|
|
/// When true, the Select, SelectMany and Where operators will preserve item ordering;
|
|
/// otherwise, they may shuffle the input items as they are processed.
|
|
/// </summary>
|
|
public bool SelectOrderPreserving
|
|
{
|
|
get { return _selectOrderPreserving; }
|
|
set { _selectOrderPreserving = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Configures query jobs to be launched on the cluster nodes against a .NET framework version
|
|
/// matching that of the client process. This should only be set if all cluster nodes are known to have
|
|
/// the same .NET version as the client.
|
|
/// When set to false (default), the vertex code will be compiled and run against .NET Framework 3.5.
|
|
/// </summary>
|
|
public bool MatchClientNetFrameworkVersion
|
|
{
|
|
get { return _matchClientNetFrameworkVersion; }
|
|
set { _matchClientNetFrameworkVersion = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets whether user-defined methods and custom serializers may be called on
|
|
/// multiple threads of a single process.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// This option affects the internal behavior of individual queries and applies to both the
|
|
/// client process (for serialization and local-debug mode) and to vertex processes.
|
|
/// This option does not have any serializing effect for queries that are submitted
|
|
/// concurrently by one or more client processes.
|
|
/// If true, user-defined methods may be called concurrently.
|
|
/// If false, user-defined methods will be called without concurrency.
|
|
/// </remarks>
|
|
public bool EnableMultiThreadingInVertex
|
|
{
|
|
get { return _multiThreading; }
|
|
set { _multiThreading = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets whether to run GC after Moxie runs each task.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// This only works with Moxie (for now at least).
|
|
/// </remarks>
|
|
public bool ForceGC
|
|
{
|
|
get { return _forceGC; }
|
|
set { _forceGC = value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Version of the DryadLinq client components
|
|
/// </summary>
|
|
/// <returns>The version of the DryadLINQ DLL</returns>
|
|
public Version ClientVersion()
|
|
{
|
|
ThrowIfDisposed();
|
|
if (_clientVersion == null)
|
|
{
|
|
try
|
|
{
|
|
Assembly asm = Assembly.GetExecutingAssembly();
|
|
_clientVersion = new Version(FileVersionInfo.GetVersionInfo(asm.Location).FileVersion);
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
throw new DryadLinqException(DryadLinqErrorCode.CouldNotGetClientVersion,
|
|
SR.CouldNotGetClientVersion, ex);
|
|
}
|
|
}
|
|
return _clientVersion;
|
|
}
|
|
|
|
internal DryadLinqJobExecutor MakeJobExecutor()
|
|
{
|
|
switch (this.ExecutorKind)
|
|
{
|
|
case ExecutorKind.DRYAD:
|
|
{
|
|
return new DryadLinqJobExecutor(this);
|
|
}
|
|
default:
|
|
{
|
|
throw new Exception("No implementation for scheduler: " + this.ExecutorKind.ToString());
|
|
}
|
|
}
|
|
}
|
|
|
|
internal Uri MakeTemporaryStreamUri()
|
|
{
|
|
if (this._storageSetScheme == null)
|
|
{
|
|
throw new DryadLinqException("The storage scheme for temporary streams must be specified.");
|
|
}
|
|
DataProvider dataProvider = DataProvider.GetDataProvider(this._storageSetScheme);
|
|
return dataProvider.GetTemporaryStreamUri(this, DryadLinqUtil.MakeUniqueName());
|
|
}
|
|
|
|
/// <summary>
|
|
/// Open a dataset as a DryadLinq specialized IQueryable{T}.
|
|
/// </summary>
|
|
/// <typeparam name="T">The type of the records in the table.</typeparam>
|
|
/// <param name="dataSetUri">The name of the dataset. </param>
|
|
/// <returns>An IQueryable{T} representing the data.</returns>
|
|
public IQueryable<T> FromStore<T>(string dataSetUri)
|
|
{
|
|
return FromStore<T>(new Uri(dataSetUri));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Open a dataset as a DryadLinq specialized IQueryable{T}.
|
|
/// </summary>
|
|
/// <typeparam name="T">The type of the records in the table.</typeparam>
|
|
/// <param name="dataSetUri">The name of the dataset. </param>
|
|
/// <returns>An IQueryable{T} representing the data.</returns>
|
|
public IQueryable<T> FromStore<T>(Uri dataSetUri)
|
|
{
|
|
ThrowIfDisposed();
|
|
DryadLinqQuery<T> q = DataProvider.GetPartitionedTable<T>(this, dataSetUri);
|
|
q.CheckAndInitialize(); // force the data-info checks.
|
|
return q;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Converts an IEnumerable{T} to a DryadLinq specialized IQueryable{T}.
|
|
/// </summary>
|
|
/// <typeparam name="T">The type of the records in the table.</typeparam>
|
|
/// <param name="data">The source data.</param>
|
|
/// <returns>An IQueryable{T} representing the data with DryadLinq query provider.</returns>
|
|
/// <remarks>
|
|
/// The source data will be serialized to a temp stream.
|
|
/// The resulting fileset has an auto-generated name and a temporary lease.
|
|
/// </remarks>
|
|
public IQueryable<T> FromEnumerable<T>(IEnumerable<T> data)
|
|
{
|
|
Uri dataSetName = this.MakeTemporaryStreamUri();
|
|
CompressionScheme compressionScheme = this.OutputDataCompressionScheme;
|
|
DryadLinqMetaData metadata = new DryadLinqMetaData(this, typeof(T), dataSetName, compressionScheme);
|
|
return DataProvider.StoreData(this, data, dataSetName, metadata, compressionScheme, true);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Register a named account with the specified storage key, so that key won't need to be specified in Azure blob URIs
|
|
/// </summary>
|
|
/// <param name="storageAccountName">The name of the storage account</param>
|
|
/// <param name="storageAccountKey">The account's key</param>
|
|
public void RegisterAzureAccount(string storageAccountName, string storageAccountKey)
|
|
{
|
|
_azureSubscriptions.AddAccount(storageAccountName, storageAccountKey);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Get the key associated with a named account, or null if it is not registered or auto-detected from
|
|
/// the subscriptions
|
|
/// </summary>
|
|
/// <param name="storageAccountName">The name of the storage account</param>
|
|
/// <returns>The storage key, or null</returns>
|
|
public string AzureAccountKey(string storageAccountName)
|
|
{
|
|
return _azureSubscriptions.GetAccountKeyAsync(storageAccountName).Result;
|
|
}
|
|
|
|
internal static DryadLinqContext GetContext(IQueryProvider provider)
|
|
{
|
|
DryadLinqProviderBase baseProvider = provider as DryadLinqProviderBase;
|
|
if (baseProvider == null)
|
|
{
|
|
throw new DryadLinqException("Must be DryadLINQ query provider.");
|
|
}
|
|
DryadLinqContext context = baseProvider.Context;
|
|
context.ThrowIfDisposed();
|
|
return context;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Releases all resources used by the DryadLinqContext.
|
|
/// </summary>
|
|
public void Dispose()
|
|
{
|
|
if (!_isDisposed)
|
|
{
|
|
_isDisposed = true;
|
|
}
|
|
}
|
|
|
|
internal void ThrowIfDisposed()
|
|
{
|
|
if (this._isDisposed)
|
|
{
|
|
throw new DryadLinqException(DryadLinqErrorCode.ContextDisposed, SR.ContextDisposed);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Determines whether this instance of DryadLinqContext is equal to another instance
|
|
/// of <see cref="DryadLinqContext"/>.
|
|
/// </summary>
|
|
/// <param name="context">The other DryadLinqContext instance</param>
|
|
/// <returns>true if the two instances are equal</returns>
|
|
public virtual bool Equals(DryadLinqContext context)
|
|
{
|
|
return (this.IntermediateDataCompressionScheme == context.IntermediateDataCompressionScheme &&
|
|
this.OutputDataCompressionScheme == context.OutputDataCompressionScheme &&
|
|
this.CompileForVertexDebugging == context.CompileForVertexDebugging &&
|
|
this.DryadHomeDirectory == context.DryadHomeDirectory &&
|
|
this.PeloponneseHomeDirectory == context.PeloponneseHomeDirectory &&
|
|
this.HeadNode == context.HeadNode &&
|
|
this.Cluster == context.Cluster &&
|
|
this.PartitionUncPath == context.PartitionUncPath &&
|
|
this.JobMinNodes == context.JobMinNodes &&
|
|
this.JobMaxNodes == context.JobMaxNodes &&
|
|
this.NodeGroup == context.NodeGroup &&
|
|
this.JobRuntimeLimit == context.JobRuntimeLimit &&
|
|
this.EnableSpeculativeDuplication == context.EnableSpeculativeDuplication &&
|
|
this.LocalDebug == context.LocalDebug &&
|
|
this.LocalExecution == context.LocalExecution &&
|
|
this.PlatformKind == context.PlatformKind &&
|
|
this.JobUsername == context.JobUsername &&
|
|
this.JobPassword == context.JobPassword &&
|
|
this.RuntimeTraceLevel == context.RuntimeTraceLevel &&
|
|
this.GraphManagerNode == context.GraphManagerNode &&
|
|
this.SelectOrderPreserving == context.SelectOrderPreserving &&
|
|
this.MatchClientNetFrameworkVersion == context.MatchClientNetFrameworkVersion &&
|
|
this.EnableMultiThreadingInVertex == context.EnableMultiThreadingInVertex &&
|
|
this.ForceGC == context.ForceGC);
|
|
}
|
|
}
|
|
}
|