Changeset 2123 for trunk/sources/HeuristicLab.Hive.Server.Core

Timestamp:

06/28/09 16:15:10 (15 years ago)

Author:

svonolfe

Message:

Avoided possible race conditions when streaming data from/into the DB (#680)

File:

• trunk/sources/HeuristicLab.Hive.Server.Core/3.2/ClientCommunicator.cs (modified) (1 diff)

trunk/sources/HeuristicLab.Hive.Server.Core/3.2/ClientCommunicator.cs

@@ -480 +480 @@
           (JobResult)formatter.Deserialize(stream);
 
-        tx = session.BeginTransaction();
+        //important - repeatable read isolation level is required here, 
+        //otherwise race conditions could occur when writing the stream into the DB
+        tx = session.BeginTransaction(
+          TransactionIsolationLevel.RepeatableRead);
 
         ResponseResultReceived response =