Changeset 17574 for trunk/HeuristicLab.Services.Hive/3.3/Interfaces/ITaskScheduler.cs

Timestamp:

05/29/20 13:28:25 (4 years ago)

Author:

jkarder

Message:

#3062: overhauled statistics generation and cleanup

• switched to a single thread for database cleanup and statistics generation (executed sequentially)
• switched to preemptive deletion of items that are in status DeletionPending (for jobs: statelogs, taskdata, tasks)
• added code that aborts tasks whose jobs have already been marked for deletion
• added method UseTransactionAndSubmit in addition to UseTransaction in PersistenceManager
• updated DAO methods and introduced more bare metal sql
• introduced DAO methods for batch deletion
• fixed usage of enum values in DAO sql queries
• deleted unnecessary triggers tr_JobDeleteCascade and tr_TaskDeleteCascade in Prepare Hive Database.sql
• changed scheduling for less interference with janitor and other heartbeats
  • increased scheduling patience from 20 to 70 seconds (to wait longer to get the mutex for scheduling)
  • changed signature of ITaskScheduler.Schedule
  • added base class for TaskSchedulers and moved assignment of tasks to slaves into it
  • changed RoundRobinTaskScheduler to use bare metal sql
• made MessageContainer a storable type (leftover)
• updated HiveJanitorServiceInstaller.nsi

File:

• trunk/HeuristicLab.Services.Hive/3.3/Interfaces/ITaskScheduler.cs (modified) (1 diff)

trunk/HeuristicLab.Services.Hive/3.3/Interfaces/ITaskScheduler.cs

@@ -20 +20 @@
 #endregion
 
+using System;
 using System.Collections.Generic;
-using HeuristicLab.Services.Hive.DataTransfer;
+using HeuristicLab.Services.Hive.DataAccess;
 
 namespace HeuristicLab.Services.Hive {
   public interface ITaskScheduler {
-    IEnumerable<TaskInfoForScheduler> Schedule(IEnumerable<TaskInfoForScheduler> tasks, int count = 1);
+    IEnumerable<Guid> Schedule(Slave slave, int count = 1);
   }
 }