Data Flow Integration Long To Start
May 24, 2007
Hello all,
I have an ETL process like that:
- Step 1: extract data from database DB2/AS400 to stage database SQL Server (with provider "ADO.NET ODBC")
- Step 2: extract data to stage database SQL Server to SQL Server
(With provider "Native OLE DBSQL Native Client")
During the step 2, if I have a table with a lot of lines (1 million or more), the data-flow takes a lot of time (some minutes) before to start extracting the data. That's quite frustrating and it affects the global time to integrate the data...
I don't know if SSIS scan the table before to integrate it. Moreover I'm almost sure that it was not like that some time ago (and I'm wondering what could have changed...)...
I just specify that the 2 SQL Server databases are on the same server.
Any idea is welcome.
Thanks,
Guillaume
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Nov 24, 2006
Hi, all here,
Thank you very much for your kind attention.
I am wondering if it is possible to use SSIS to sample data set to training set and test set directly to my data mining models without saving them somewhere as occupying too much space? Really need guidance for that.
Thank you very much in advance for any help.
With best regards,
Yours sincerely,
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Apr 25, 2006
when executing my data flow package that contains only one source and one destination
OLE db source -> SQL server destination
the following errors occurs in my output
Error: 0xC0202009 at Data Flow Task(infraction action), SQL Server Destination [3600]: An OLE DB error has occurred. Error code: 0x80040E14.
Error: 0xC0202071 at Data Flow Task(infraction action), SQL Server Destination [3600]: Unable to prepare the SSIS bulk insert for data insertion.
Error: 0xC004701A at Data Flow Task(infraction action), DTS.Pipeline: component "SQL Server Destination" (3600) failed the pre-execute phase and returned error code 0xC0202071.
i've checked the structure of my source and destination table but nothing seems to be wrong
if someone have ever faced these errors help me :D
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May 9, 2012
I'm a beginner in ssis. Use of Pointer in Data Flow task (Transformations)Royal PS
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Dec 7, 2007
We are using an OLE DB Source for the Data Flow Source and OLE DB Destination for the Data Flow Destination. The amount of data being moved is about 30 million rows, and it is gather using a sql command. There is not other transformations in between straight from one to another. The flow starts amazingly fast but after 5 million rows it slows considerably. Wondered if anyone has experienced anything similar with large loads.
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May 11, 2015
Data flow A take data from the Excel File A, Data B from Excel File B, Data C from Excel File C. What I'd like to do is that if something goes wrong on Data Flow A I would be alerted but the package should continue to running. The same for the DataFlow B, if A it's ok go on, if B fail send me the mail but continue until the end (so running the Data Flow C).
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Feb 11, 2014
I have a requirement to read an encrypted file as a data source. I am not allowed to save an unencrypted text file version on disc at any time for any length of time, therefore I created a custom source component that reads an encrypted csv file, decrypts it, and then passes each row of data to the pipeline and ultimately to an ole data destination. Basically it is just a text file reader with an added class that adds functionality that decrypts the file before the component sets columns or reads rows.
The custom component, “Encrypted File Source”, has a custom property “encryptionkey” with the encryption required flag set to true (code below) and is declared as eligible to be set in the expressions.
IDTSCustomProperty100 EncryptionKey = ComponentMetaData.CustomPropertyCollection.New();
EncryptionKey.Name =
"EncryptionKey";
EncryptionKey.Description =
"Secure String key value to decrypt the file";
EncryptionKey.Value =
string.Empty;
EncryptionKey.ExpressionType =
DTSCustomPropertyExpressionType.CPET_NOTIFY;
EncryptionKey.EncryptionRequired =
true;
I want to be able to set the password for the encrypted file in the SQL Agent job that executes the SSIS project. This means I have an environment with a variable, “DataPassword”, that is set to sensitive. It maps to a Project parameter in the SQL Agent job that is also set to sensitive. And I now I want to access that sensitive Project Password inside my data flow, specifically in the Encrypted File source task that I created and set my EncryptionKey to that Project Parameter.
The problem is that SSIS says.
"expression cannot be evaluated. ... The Expression will not be evaluated because it contains sensitive parameter value "$Project::DataFilePassord" . Verify that the expression is used properly and that it portects sensitive information"
((Microsoft.DataTransformationsServices.Controls) "<v:shapetype coordsize="21600,21600" filled="f" id="_x0000_t75" o:preferrelative="t" o:spt="75"
path="m@4@5l@4@11@9@11@9@5xe" stroked="f">
[Code] ....
I am using SQL Server 2012, on a windows 7 box with VS2010 premium.
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Jul 2, 2010
In my SSIS Data Flow Task, I have a query that retrieves data based on a couple of date parameters. Is there a way we can pass/use the Variables defined in the SSIS package in the query ?
(I am assigning values to those variables from C# code)
The query should look like this:
select ordernumber, customerid from salesorder
where statecode=3 and datefulfilled between @variable1 and @variable2
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Apr 29, 2015
I have a Data Flow Task within a ForEach loop container. The source of the flow is ADO.NET connection and the destination is a Flat File Connection. I loop through a collection of strings in the ForEach loop. Based on the string content, I write some data to the same destination file in each iteration overwriting the previous version. I am running into following Errors:
[Flat File Destination [38]] Warning: The process cannot access the file because it is being used by another process.
[Flat File Destination [38]] Error: Cannot open the datafile "Example.csv".
[SSIS.Pipeline] Error: Flat File Destination failed the pre-execute phase and returned error code 0xC020200E.
I know what's happening but I don't know how to fix it. The first time through the ForEach loop, the destination file is updated. The second time is when this error pops up. I think it's because the first iteration is not closing the destination file. How do I force a close of the file within Data Flow task or through a subsequent Script Task.This works within a SQL 2008 package on one server but not within SQL 2012 package on a different server.
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Oct 19, 2015
I am using the SharePoint adapters from Codeplex that allow me to use SharePoint source and destination tasks in SSIS for SQL Server 2008 and SharePoint 2010. I am able to pull the data from the SQL Server and insert it into the SharePoint List.
However, I prefer to just have fresh data every time, so I'd like to add a step to delete all the items in the list before inserting the new ones. Is there a way I can configure the SharePoint SSIS destination task to clear all the items before I insert new ones?
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Jun 1, 2015
Using SSIS 2012 (within Visual Studio) on Windows 7.
Before allowing my Data Flow task to fire, I'd like to check the target table (OLE DB Destination) for a specific date value in a specific field. I've seen how the Lookup Task is commonly used to check for dupes before inserting, but I'm not able to use that method because the data value I want to search the table for is contained in a Global Variable (let's say "MyVariableDate").
Is there any way to check for any records in a target table where Date1 = MyVariableDate (i.e. scanning the entire table for any occurrence of MyVariableDate in the Date1 field)?
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Nov 3, 2015
Suppose if I have a “Foreach Loop Container” that iterates over a list. Is it possible to execute different data flow tasks based on the input?
Example : List contains elements L1, L2 & L3.
ForEach Loop Container checks the input. If its L1 then it should execute DF Task1, If L2 then execute
DF Task2 and similarly for L3.
Is it possible to achieve this?
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Sep 25, 2015
I have created an event that contains a Data flow tasks with OLE DB source & Excel Destination.
This event is executed/triggered based on an execute SQL task failure in the control flow Sequence container.
However, when I execute the Data Flow task of the Event Handler, it runs successfully but fails when I execute the whole package.
I get the below error message:
[OLE DB Source [21]] Error: SSIS Error Code DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER. The AcquireConnection method call to the connection manager "TK463DW" failed with error code 0xC0202009. There may be error messages posted before this with more information on why the AcquireConnection method call failed.
I have tried setting the property 'DelayValidation' to 'True' on all the Control Flow and Data Flow tasks on the package and on the Event Handler, but still I could not fix this.Not sure What I am missing.
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Feb 3, 2014
I recently upgraded to on 2012 SP1 CU5 and have found the SSDT gui for SSIS to be almost unusable. I can't drag or resize items. Any time i try they either automagically shrink to the tiniest possible size, shoot off to some extreme or just shake uncontrollably I didn't have these problems on previous versions (dont remember what It was).
Is there a fix for this?
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Jun 4, 2015
I have huge data and i am loading data from EXCEL to database table, after loading 80 percent data i am getting some error. My package got failed and it has lots of transformation and took around 6 hours to process completely because of that i don't want it to reload from start. if i run it again it should start from next record from where i got the error.
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Oct 18, 2015
We have a single generic SSIS package that is used to import several hundred iSeries tables into SQL. I am not looking to rewrite the process. But I am looking for ways to improve performance.
I have tried retain same connection, maximum insert commit size, lock table (tablock), removed some large columns, played with the log file location and size, and now I am working to tweak the defaultbuffermaxrows.
To describe the data flow task - there are six data flows tasks (dft) working at the same time. Each dtf has their own list of iSeries tables and columns and the corresponding generic SQL table names. Each dtf determines their list of tables based on the number of columns to import. So there is dft30 (iSeries table has 1-30 columns to import), dtf60 (iSeries table has 31-60 columns to import), etc. The destination SQL tables are generically called Staging30, Staging60, etc. Each column in the generic Staging tables are varchar(100). The dtfs are comprised of an OLE DB Source and an OLE DB Destination.
The OLE DB Source uses a SQL Command from Variable to build a SELECT statement. The OLE DB Source uses a connection manager that uses an IBM iAccess IBMDA400 provider. The SQL Command ends up looking like this for the dtf30. This specific example is importing from the iSeries table TDACLR and it only has two columns so it will be copied to the Staging30 table.
select TCREAS AS C1,TCDESC AS C2,0 AS C3,0 AS C4,0 AS C5,0 AS C6,0 AS C7,0 AS C8,0 AS C9,0 AS C10,0 AS C11,0 AS C12,0 AS C13,0 AS C14,0 AS C15,0 AS C16,0 AS C17,0 AS C18,0 AS C19,0 AS C20,0 AS C21,0 AS C22,0 AS C23,0 AS C24,0 AS C25,0 AS C26,0 AS C27,0 AS
C28,0 AS C29,0 AS C30,''TDACLR'' AS T0 from Store01.TDACLR
The OLD DB Source variable value looks like the following, but I am not showing the full 30 columns
select cast(0 AS varchar(100)) AS C1,cast(0 AS varchar(100)) AS C2,cast(0 AS varchar(100)) AS C3,cast(0 AS varchar(100)) AS C4,cast(0 AS varchar(100)) AS C5, ... cast(0 AS varchar(100)) AS C30.
The OLE DB Destination uses OpenRowSet Using FastLoad From Variable. The insert into Staging30 ends up looking like this.
insert bulk STAGE30([C1] varchar(100) ,[C2] varchar(100) ,[C3] varchar(100) ,[C4] varchar(100) ,[C5] varchar(100) , ... ,[C30] varchar(100) ,[T0] varchar(20)
Of course we then copy and transform the Staging30 data to the SQL table that equals T0.
But back to defaultbuffermaxrows. Previously the dtfs had default values of 10000 for DefaultBufferMaxRows and 10485760 for DefaultBufferSize. I added a SQL task to SUM the iSeries column sizes, TCREAS and TCDESC in this example, and set the DefaultBufferMaxRows by dividing the SUM of the columns max_length into 10485760. But I did not see a performance improvement. Do you think that redefining the columns as varchar(100) for the insert is significant? Should I possibly SUM the actual number of columns (2) as 2x100 or SUM the 30x100?
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Sep 22, 2015
Basically i'm trying to create an SSIS workflow to download Sharepoint List data to SQL Server on a schedule of some kind.do we actually have to use the GAC install approach in order to get the Sharepoint List Destination and Sharepoint List Source entries to appear on the SSIS Project workflow entities?
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Oct 24, 2007
Hi all,
In a foreachloop, I am inserting records into a flat file which is working fine. But the thing is that as the file grows, it takes longer for it to locate the EOF(End of File) of the flat file so as to insert the records.
I have around 70-100 lines written to the file at each loop and there are more than 20k records to be looped. wihich means that at the end I should be having 1400k - 20000k line in the text file.
One solution would be to insert the records at the start of the file itself so that it does not has to lookup the EOF each time before writting.
Another would be to generate separate files and then merge it.
Any idea how can this can be done?
Beside this I have to zip the file and then SFTP to a given address.
Any suggestion or help would be welcome.
Rdgs
David
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Jul 2, 2015
Is it possible to do? I'm getting lock violations in I try to execute several tasks in parallel.
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May 14, 2015
I'm trying to edit the Expressions of a Data Flow task. This seems to happen when I rename some of the Data Flow components but not always. The error I get is:
Element "[ADO Net Source].[SqlCommand]" does not exist in the collection "Properties"
However, if you look at the XML, this property does exist. So I'm not sure why this should occur.
I'm using SSIS 2008 R2 with Visual Studio 2008 V 9.0.30729.4462 QFE.
<component id="1" name="ADO Net Source" componentClassID="{2E42D45B-F83C-400F-8D77-61DDE6A7DF29}" description="Extracts data from a relational database by using a .NET provider." localeId="-1" usesDispositions="true" validateExternalMetadata="True" version="4" pipelineVersion="0" contactInfo="Extracts data from a relational database by using a .NET provider.;
[Code] ....
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Jun 16, 2015
We have created SSIS package to load a text file into a table. Source system shares 10 text files and recently they stopped generating data for one of the text file (comping empty), after few months they will start generating the data for the empty file batch processing.
The Issue here is Data Flow task is getting failed while loading empty text file into table. How to handle this empty file load issue in SSIS package.
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Aug 29, 2007
Hello,
Is it possible to use existing data flow components (Merge Join, aggregation,...) in a custom data flow component?
Thanks,
Yoann
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Oct 13, 2015
I am facing an issue that Data flow task failing after loading 29000 rows out of 2lakhs rows.
I am loading data from .csv file to OLE DB Destination.
This data flow task is placed inside For each loop container.
is this issue because of any performance issue in SSIS packages such as buffer size.
find the error below:
DFT Load Data from FlatFile:Error: The conditional operation failed.
DFT Load Data from FlatFile:Error: SSIS Error Code DTS_E_INDUCEDTRANSFORMFAILUREONERROR.
The "DER Add Calc Columns" failed because error code 0xC0049063 occurred, and the error row disposition on "DER Add Calc Columns.Outputs[Derived Column Output].Columns[M_VALUE_NUM]" specifies failure on error. An error occurred on the specified object of the specified component. There may be error messages posted before this with more information about the failure.
DFT Load Data from FlatFile:Error: SSIS Error Code DTS_E_PROCESSINPUTFAILED. The ProcessInput method on component "DER Add Calc Columns" (48) failed with error code 0xC0209029 while processing input "Derived Column Input" (49). The identified component returned an error from the ProcessInput method. The error is specific to the component, but the error is fatal and will cause the Data Flow task to stop running. There may be error messages posted before this with more information about the failure.
[code]....
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Oct 13, 2003
Sometime is necessary to stop MSSQLSeverOLAPServieces to do a full backup in my OLAP Server disks. After backup had finished and I tried to star MSSQLSeverOLAPServieces but it takes almost 30 minutes to the services starts.
What can it be causing that?
Paulo
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May 7, 2014
I have problems sometimes with a package.
There is and SQL Agent job that starts a package (from a file system using cmd command). Usually job takes 8-10 minutes. But sometimes it get stuck for a long time (1+ hour).
DTexec process can be found with procmon, but it seems it just not doing anything (And package is not logging to file Start of the execution) After long wait it just runs a package quickly.
I've moved a package to SSIS catalog to try to get more detailed logging, but with no luck.
Job starts at 1 PM, package execution starts at 1:49 PM. Without any messages about the execution in SSISDB log.
First I've thought it might be long validation problem, but when package executes validation messages are there and they perform quick.
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Feb 14, 2006
Hi, All,
I need to pass a parameter from control flow to data flow. The data flow will use this parameter to get data from a Oracle source.
I have an Execute SQL task in control flow to assign value to the Parameter, next step is a data flow which will need take a parameter in the SQL statement to query the Oracle source,
The SQL Looks like this:
select * from ccst_acctsys_account
where to_char(LAST_MODIFIED_DATE, 'YYYYMMDD') >?
THe problem is the OLE DB source Edit doesnt have anything for mapping parameter.
Thanks in Advance
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Mar 9, 2007
I have an Execute SQL Task that returns a Full Rowset from a SQL Server table and assigns it to a variable objRecs. I connect that to a foreach container with an ADO enumerator using objRecs variable and Rows in first table mode. I defined variables and mapped them to the columns.
I tested this by placing a Script task inside the foreach container and displaying the variables in a messagebox.
Now, for each row, I want to write a record to an MS Access table and then update a column back in the original SQL Server table where I retreived data in the Execute SQL task (i have the primary key). If I drop a Data Flow Task inside my foreach container, how do I pass the variables as input to an OLE DB Destination on the Data Flow?
Also, how would I update the original source table where source.id = objRects.id?
Thank you for your assistance. I have spent the day trying to figure this out (and thought it would be simple), but I am just not getting SSIS. Sorry if this has been covered.
Thanks,
Steve
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Jan 17, 2008
Dear All!
My package has a Data Flow Task. In Data Flow Task, I use a Script Component and a OLE BD Destination to transform data from txt file to database.
Within Data Flow Task, I want to call File System Task to move file to a folder or any Task of "Control Flow" Tab. So, Does SSIS support this task? Please show me if any
Thanks
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May 17, 2007
Hi everyone,
Primary platform is 64 bit cluster.
How to move information allocated in SSIS variables from Data Flow to Control Flow layers??
We've got a SSIS package which load a value into a variable inside a Data Flow. Going back to Control Flow how could we retrive that value again????
Thanks in advance and regards,
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Jan 12, 2006
I'm currently setting variables at the package level with an ExecuteSQL task. This works fine. However, I'm now starting to think about restartability midway through a package. It would be nice to have the variable(s) needed in a data flow set within the data flow so that I only have to restart that task.
Is there a way to do that using an SQL statement as the source of the value in a data flow?
OR, when using checkpoints will it save variable settings so that they are available when the package is restarted? This would make my issue a moot point.
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Jul 22, 2007
Hi all! I recently started working with SSIS and one of the things that is puzzling me the most is what's the best way to go:
A small control flow, with large data flow tasks
A control flow with more, but smaller, data flow tasksAny help will be greatly appreciated.
Thanks,
Ricardo
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Dec 28, 2007
Hi,
I'm trying to implement an incremental data pull (Oracle to SQL) based on Andy's blog:
http://sqlblog.com/blogs/andy_leonard/archive/2007/07/09/ssis-design-pattern-incremental-loads.aspx
My development machine is decent: 1.86 GHz, Intel core 2 CPU, 3 GB of RAM.
However it seems the data flow task gets hung whenever I test the package against the ~6 million row source, as can be seen from these screenshots. I have no memory limitations on the lookup transformation. After the rows have been cached nothing happens. Memory for the dtsdebug process hovers around 1.8 GB and it uses 1-6 percent of CPU resources continuously. I am not using fast load to insert new records into my sql target table. (I am right clicking Sequence Container 3 and executing this container NOT the entire package in the screenshots)
http://i248.photobucket.com/albums/gg168/boston_sql92/1.jpg
http://i248.photobucket.com/albums/gg168/boston_sql92/2.jpg
http://i248.photobucket.com/albums/gg168/boston_sql92/3.jpg
http://i248.photobucket.com/albums/gg168/boston_sql92/4.jpg
http://i248.photobucket.com/albums/gg168/boston_sql92/5.jpg
http://i248.photobucket.com/albums/gg168/boston_sql92/6.jpg
The same package works fine against a similar test table with 150k rows.
http://i248.photobucket.com/albums/gg168/boston_sql92/7.jpg
http://i248.photobucket.com/albums/gg168/boston_sql92/8.jpg
The weird thing is it only takes 24 minutes for a full refresh of the entire source table from Oracle to the SQL target table.
Any hints,advice would be appreciated.
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Nov 26, 2007
I am not able to start Integration services on my windows 2003 machine. I get the below error. The request failed or the service did not respond in a timely fashion. Consult the event log or application error log for details. I am a newbee for MS SQLSERVER. I did not see any errors in the event log. I checked the sqlserver log and found the below message. I am not sure if this could be related. The SQL network Interface library could not register service principal name (SPN) for the SQL service error: 0x2098. This machine is clustered and integration services seems to work without issues on the first node.
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