source: branches/HiveStatistics/sources/HeuristicLab.Services.Hive.DataAccess/3.3/Daos/TaskDao.cs @ 12691

Last change on this file since 12691 was 12691, checked in by dglaser, 7 years ago

#2388:

HeuristicLab.Services.Access:
HeuristicLab.Services.Access.DataAccess:

  • Changed connection strings and certificates for local usage

HeuristicLab.Services.Hive.DataAccess:

  • Added compiled queries for frequently used queries
  • Integrated string queries from OptimizedHiveDao

HeuristicLab.Services.Hive:

  • Added NewHeartbeatManager.cs
  • Added NewRoundRobinTaskScheduler.cs
  • Added PerformanceLogger
  • Updated AuthoriziationManager
  • Updated NewHiveService
    • Added Regions
    • Implemented missing methods
    • Improved performance of several queries

HeuristicLab.Services.WebApp.Status:

  • Fixed a bug which caused an error when calculating the average waiting time.
File size: 3.6 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.Collections.Generic;
24using System.Data.Linq;
25using System.Linq;
26
27namespace HeuristicLab.Services.Hive.DataAccess.Daos {
28  public class TaskDao : GenericDao<Guid, Task> {
29    public TaskDao(DataContext dataContext) : base(dataContext) { }
30
31    public override Task GetById(Guid id) {
32      return GetByIdQuery(DataContext, id);
33    }
34
35    public IQueryable<Task> GetAllChildTasks() {
36      return Table.Where(x => !x.IsParentTask);
37    }
38
39    public IQueryable<Task> GetByJobId(Guid id) {
40      return Table.Where(x => x.JobId == id);
41    }
42    public class TaskPriorityInfo {
43      public Guid JobId { get; set; }
44      public Guid TaskId { get; set; }
45      public int Priority { get; set; }
46    }
47
48    public IEnumerable<TaskPriorityInfo> GetWaitingTasks(Slave slave) {
49      //Originally we checked here if there are parent tasks which should be calculated (with GetParentTasks(resourceIds, count, false);).
50      //Because there is at the moment no case where this makes sense (there don't exist parent tasks which need to be calculated),
51      //we skip this step because it's wasted runtime
52      return DataContext.ExecuteQuery<TaskPriorityInfo>(GetWaitingTasksQueryString, slave.ResourceId, Enum.GetName(typeof(TaskState), TaskState.Waiting), slave.FreeCores, slave.FreeMemory).ToList();
53    }
54
55    public void UpdateExecutionTime(Guid taskId, double executionTime) {
56      DataContext.ExecuteCommand(UpdateExecutionTimeQuery, executionTime, DateTime.Now, taskId);
57    }
58
59    #region Compiled queries
60    private static readonly Func<DataContext, Guid, Task> GetByIdQuery =
61      CompiledQuery.Compile((DataContext db, Guid taskId) =>
62        (from task in db.GetTable<Task>()
63         where task.TaskId == taskId
64         select task).SingleOrDefault());
65    #endregion
66
67    #region String queries
68    private const string GetWaitingTasksQueryString = @"
69      WITH pr AS (
70        SELECT ResourceId, ParentResourceId
71        FROM [Resource]
72        WHERE ResourceId = {0}
73        UNION ALL
74        SELECT r.ResourceId, r.ParentResourceId
75        FROM [Resource] r JOIN pr ON r.ResourceId = pr.ParentResourceId
76      )
77      SELECT DISTINCT t.TaskId, t.JobId, t.Priority
78      FROM pr JOIN AssignedResources ar ON ar.ResourceId = pr.ResourceId
79          JOIN Task t ON t.TaskId = ar.TaskId
80      WHERE NOT (t.IsParentTask = 1 AND t.FinishWhenChildJobsFinished = 1)
81          AND t.TaskState = {1}
82          AND t.CoresNeeded <= {2}
83          AND t.MemoryNeeded <= {3}
84    ";
85
86    private const string UpdateExecutionTimeQuery = @"
87      UPDATE [Task]
88         SET ExecutionTimeMs = {0},
89             LastHeartbeat = {1}
90       WHERE TaskId = {2}
91    ";
92    #endregion
93  }
94}
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