Custom Destination Component Logging - Wrote 0 Rows
Mar 17, 2006
I wrote a custom destination component. Everything works fine, except there is a logging message that is displayed that I cannot get rid of or correct. Here is the end of the output of a package containing my component:
Information: 0x40043009 at Data Flow Task, DTS.Pipeline: Cleanup phase is beginning.
Information: 0x0 at Data Flow Task, MyDestination: Inserted 40315 rows into C: empfile.txt
Information: 0x4004300B at Data Flow Task, DTS.Pipeline: "component "MyDestination" (9)" wrote 0 rows.
SSIS package "Package.dtsx" finished: Success.
I inserted a custom information message that contains the correct number of rows written by the component. I would like to either get rid of the last message "... wrote 0 rows", or figure out what to set to put the correct number of rows into that message.
This message seems to happen in the Cleanup phase. It appears whether I override the Cleanup method of the Pipeline component and do nothing, or not. Any ideas?
I have created a custom script destination using an article found on TechNet. The script executes fine and completes, but with one small problem. The last package execution log entry states "wrote 0 rows". This is a problem because I use this number to verify that all of the database records have been properly transferred.
I have monitored that database when the script is executing and have verified that the data is being transferred property.
Is there some function that I should be calling with each row prcessed in the custom script destination to "tally" the row count? This way the script component will display the proper row count.
I am writing a custom dataflow destination that writes data to a named pipe server running in an external process. At runtime, in PreExecute, I check to see if the pipe exists. If it does not exist I want to be able to fail the component and gracefully complete execution of my package.
Question is, how do I do this? If I make a call to ComponentMetaData.FireError() that will only create an OnError event and not actually stop the execution. So, how to I halt the execution of my component and return the error message?
Here is the situation. I have created a package that takes 50 columns from a comma delimited flat file. I then validate and clean the data. Next I add two columns that were not in the original source file. These two columns need to be in the 5th and 9th column position when the file is then re-written to a text file. How do i get those two columns to write out in the desired order? Any ideas?
I am writing a Custom Destination component with a custom UI. The UI contains a combo box which contains the connection names of type €œFLATFILE€?. I also have provided a button which would create a new connection of type €œFLATFILE€? by making a call to CreateConnection method of IDtsConnectionService. The combo box gets properly updated showing the connections of type €œFLATFILE€? but on clicking on the new Connection button the application hangs up. Am I missing something or is there some other way to do it?
The function are the events handlers which are called by the UI.
if (connectionService != null) { ArrayList temp_Connections = connectionService.GetConnectionsOfType("FLATFILE");
args.AvailableColumns = new AvailableColumnElement[temp_Connections.Count]; for (int i = 0; i < temp_Connections.Count; i++) { ConnectionManager runtimeConnection = (ConnectionManager)temp_Connections; args.AvailableColumns.AvailableColumn = new DataFlowElement(runtimeConnection.Name, runtimeConnection); }
args.AvailableColumns = new AvailableColumnElement[temp_Connections.Count]; for (int i = 0; i < temp_Connections.Count; i++) { ConnectionManager runtimeConnection = (ConnectionManager)temp_Connections; args.AvailableColumns.AvailableColumn = new DataFlowElement(runtimeConnection.Name, runtimeConnection); }
I am running SQL 2005 9.0.1399 and VS 2005 8.0.50727.42 (RTM.50727.4200) on Windows Server 2003 Enterprise Edition SP1. Any suggestions would be welcome.
The code sample is an extension to the RemoveDuplicates sample (Dec 2005) which comes along with the SQL Server.
Hi, All the examples I've seen for creating custom data destinations (scripts or components) show that in the ProcessInput method you need to iterate through each record and execute a commit for each row. Here's a sample from http://forums.microsoft.com/msdn/showpost.aspx?siteid=1&postid=70469
Public Overrides Sub MyAddressInput_ProcessInputRow(ByVal Row As MyAddressInputBuffer) With sqlCmd .Parameters("@addressid").Value = Row.AddressID .Parameters("@city").Value = Row.City .ExecuteNonQuery() End With End Sub
This works for me but is extremely slow when processing lots of rows. Has anyone come across a better/faster example for committing rows to a database when creating a custom data destination component? I was thinking about using the ADO.NET batch update. Any thoughts on this or other approaches?
I recently read the project real ETL design best practices whitepaper. I too, want to do custom logging as I do today, and also use SSIS logging. The paper recommended using the variable system::PackageExecutionId to tie the 2 logging methods together.
Hi all I'm into a project which uses a lot of views for joining 2 or more tables. Using the MERGE component in SSIS will be a huge effort coz it only has 2 inputs and I gotta SORT the input too. Isnt it possible to have a VIEW like component that joins more than 2 tables and DOESNT need sorting?? (I've thought about creating views in database engine but it breaks my data floe in SSIS and is'nt a practical solution)
I am writing a custom dataflow transformation component and I need to get the name of the preceeding component.
I have been trying to find a way to get a reference to the Package object, MainPipe object or IDTSPath90 object (connecting to the IDTSInput90 of my component) from my component because I think from there I can get to the information I want.
What I want to accomplish is that at design time the designer can enter a value for some custom property on my custom task and that this value is accessed at executing time.
I am trying to use a conditional split task so that I can check for specific fields. If the value doesn't exist I am piping the records to a derived field task, where I add an error. I then try to send these records to a flat file destination so that I can keep track of them. However, when I execute the SSIS data flow task I get the following error
[Log Invalid Records [5496]] Warning: The process cannot access the file because it is being used by another process.
This file isn't being used by any other process as far as I can tell, and the only process using it is the SSIS task trying to write to it.
If anyone has any ideas, then I would really really appreciate it
I have a small requirement in SSIS Error Logging Mechanism. Presently in my SSIS package i am using a File Connection Manager for creating a Log file. I have a problem on this regard. Every time when i am executing my DTS package, the error log messages are getting appended to my error log at OS level (say D:error_messg.log). And for this reason whenever my DTS package is getting executed the size of the file is keep on increasing and there by killing my disk space.
I have a requirement for this error logging mechanism. At any time my log file should not exceed more than 20MB. Or can we remove the log events a week ago or say more than 2 days or say. Just ensuring the log file do not fill up the disk space eventually.
How can we do this? Any suggestions are greatly appreciated.
'...we can attach an event handler to the package...and this one event handler will catch all events raised of that event type by every container in the package...'
Fine. Now what I want to do is catch all OnInformation events generated for the package, and disgard all apart from a subset, whose message contains a particular string. So the Q is, how do I/can I interrogate the message for the event that my handler has just caught?
Michael Coles has come up with a neat method of overriding sp_dts_addlogentry, (http://blogs.sqlservercentral.com/blogs/michael_coles/archive/2007/10/09/3012.aspx), but I want to do this within the package, not outside, to avoid the change becoming global to every package writing to the same sysdtslog90.
Does anyone know how to hook up to data flow pipeline events via custom solution (C#)? I am trying to write code to log start and end times of components(lookup,merge joins etc) in a data flow task. I tried with a class inheriting from the EventsProvider class but it didn't work as this is only for container tasks. Any ideas will be greatly appreciated.
I'm trying to implement a custom log table. To keep the discussion simple, let's say I only have 1 column in this table and all I want to write in it are
"Start" when the package starts "Error" when it encounters an error "Finish" when the package finishes. Even if there was an error, I still want to enter "Finish'.
My Control Flow has 3 task objects, 2 Execute SQL Tasks, and 1 Data Flow Task in between them.
The first Execute SQL Task does an insert statement for the Start and the second Execute SQL Task does an insert for the Finish.
To capture any package errors, I also have an Execute SQL Task (to insert "Error") in the Event Handler for OnError. I see that when I cause an error in my package it can raise multiple OnError events, which will envoke my Execute SQL Task multiple times. (This is good because it will allow me to write a line per error event with the error description.)
The problem I have is, how do I write the "Finish" log when I have an error? If I put the insert for the finish in the same Execute SQL Task with the errors, then it will write a "Finish" for every error. But I can't put it anywhere else because if I put it anywhere else, the package never makes it there because it stops at the OnError Event Handler.
Or is there a way for me to tell the package to do the 2nd Execute SQL Task all the time?
Lastly, is there a better way to do this kind of custom logging?
when loading the transformed data into OLE DB destination, there is no options to truncate destination table first. Have to insert a middle step to run script to truncate the destination table first.
I'm very confused. We even has the options of keeping or deleting the data in destination table in SQL2000 DTS package. Why we don't have this option in SQL2005??
I am creating and running a package programmatically. I have the source component set up fine, and the destination component seems good, but when the package is run, it gets the error message: "Excel destination failed validation and returned validation status "VS_NEEDSNEWMETADATA" ". This would lead me to believe that I need a ReinitializeMetaData() call, but I already have that (see below). How do I fix this? Thanks for your help.
' Create and configure an OLE DB destination.
Dim conDest As ConnectionManager = package.Connections.Add("Excel")
Each DFT have source > Tranformation > Conditionsplit > Rowcount_Transformation >  Oledb Command                                                                                 > Rowcount_Transformation1 > Oledb Command1                                                                                 > Rowcount_Transformation2 > Oledb Command2                                                                                 > Rowcount_Transformation3 > Oledb Command3
All update hapend on diffrent Table.I want to log in Audit table .
My audit table like
Table_Name  Insert_count Update_count
How can I log the package having multiple OLEDB Destination.
When expoting data from excel to sql server table, using SSIS package, after exporting is done, how would i check source rows are equal to destination rows. If not to throw an error message.
How can we handle transactions in SSIS 1. when some error/something happens during export and the # of rows are not exported fully to destination, how to rollback the transaction in SSIS.
When expoting data from excel to sql server table, using SSIS package, after exporting is done, how would i check source rows are equal to destination rows. If not to throw an error message.
Hello, I am trying to create a simple package programmatically. I am following the examples in the BOL, and from some advice here. I am getting stuck at creating an Excel Destination and setting its sheetname. Everything works fine, including setting the output Excel filename. I get a runtime exception when I try to set the sheetname via SetComponentProperty. Is there another way, or am I doing something wrong? Thanks for any info you may have.
' Create and configure an OLE DB destination.
Dim conDest As ConnectionManager = package.Connections.Add("Excel")
Create a table at the beginning of a package (using a ExecuteSQLTask component) and then use the created table as a OLE DB destination component, later on the package.
Is this possible in SSIS?
The problem I run into is that I have to point the OLE DB destination component to a table and set up mappings, however as the table does not exist until the package is running, it does not seem to be possible.
Which is slightly similar to what I want, but the table I create would not be a temp tables, and I need to set up mappings and I don't see how this is possible.
I have built a custom flat file destination adapter but it appears that the code is not working. When I debug the process I notice that the ProcessInput section is called multiple times. The first time it looks like everything is working, then it call it again and there is no inpout from the DTSInput90.
I would like to fire a pre execution event, grab the name of the stored procedure (source of the sql task), insert a record with the name and datetime, and then fire a post event that would update the record with a modified dated.
What is the best way to capture the source value name in the execute sql task.
I have an SSIS package that produces an Excel output file say File1 The Excel output file is created from a previous script task by copying a standard excel template to File1 after the copy, File1 has the disclaimer, legend etc... and a header row at row 10. So data rows should only start at row 11.
I was googling and found that people who read Excel file using an Excel source component have been successful reading from a range by the use of the OPENROWSET property. It is said to set this property to Sheet1$A5-B999 to start reading from row 5.
I tried to set the OPENROWSET property to be Sheet1$A11-B999 but am getting an error "Check that object exists" (Sheet1 does exist) So I guess it is the range that has an improper syntax or something else is wrong.
Is there a default destination component used when a new data flow is created? The reason I ask is simply curiosity. I have an xml file with 2 pieces of data: item A and item B. A should simply get copied out of the file. B should undergo a quick transform. I set up an XML source such that two columns are mapped correctly to the XML source data of A and B. I set up my data transform task as well. So, if I leave those two components on the .dtsx page with no other components, then will there be a default data flow destination already created? ...OR, do you always have to have a destination component?
I am writing a custom transformation component that utilises a user variable.
Before using the variable at run time I am checking that the variable exists, but it would be nice to be able to add it if it does not. I cannot find any documentation on the subject, though I can see that the Variables class is derived from a ReadOnlyCollectionBase.
Is there a way to add a user variable with package scope from a custom component, either at run time or design time?
