No offence, but sounds like a bad plan anyway...
-----Original Message----- From: Zsák Szabolcs (JIRA) [mailto:trac...@firebirdsql.org] Sent: vrijdag 17 februari 2012 15:59 To: firebird-net-provider@lists.sourceforge.net Subject: [Firebird-net-provider] [FB-Tracker] Created: (DNET-409) Inserting large BLOB field (>500 MB) - System.OutOfMemoryException Inserting large BLOB field (>500 MB) - System.OutOfMemoryException ------------------------------------------------------------------ Key: DNET-409 URL: http://tracker.firebirdsql.org/browse/DNET-409 Project: .NET Data provider Issue Type: Bug Components: ADO.NET Provider Affects Versions: 2.7 Environment: Windows 7 32&64 bit Reporter: Zsák Szabolcs Assignee: Jiri Cincura Priority: Critical I tried to insert a new record to a table. The table had an integer and a Blob field. The size of the blob value was more than 500 MB. An System.OutOfMemoryException exception is raised after ExecuteNonQuery. This is the code: FbConnectionStringBuilder sb = new FbConnectionStringBuilder(); sb.UserID = UserID; sb.Password = Password; sb.Database = Database; sb.DataSource = DataSource; sb.Port = Port; using (FbConnection conn = new FbConnection(sb.ConnectionString)) { conn.Open(); using (FbCommand comm = new FbCommand("INSERT INTO \"SomeTable\" (\"Id\",\"Image\") VALUES (@id,@blob)", conn)) { FbParameter p1 = comm.Parameters.Add("@blob", FbDbType.Binary); p1.Value = System.IO.File.ReadAllBytes(BIGFILE); p1.Direction = ParameterDirection.Input; FbParameter p2 = comm.Parameters.Add("@id", FbDbType.Integer); p2.Value = 1; p2.Direction = ParameterDirection.Input; comm.ExecuteNonQuery(); } conn.Close(); } The memory consumption is big because of the InternalValue get-property of the FbParameter class. This get-property makes a copy from Blob value, and it's called many times. I think the objectcopy isn't necessary always! -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://tracker.firebirdsql.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Firebird-net-provider mailing list Firebird-net-provider@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/firebird-net-provider ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Firebird-net-provider mailing list Firebird-net-provider@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/firebird-net-provider
