"Column data type DT_R8 is not supported by the PipelineBuffer class."
This log was happening when im running the whole container.
on script component sebugging is working finely, single task also working finely. but while im running whole package im getting this error. advance thanks to helpers :)
I ran into this issue today. While my situation seem to be slightly different, the solution may still be applicable. Let me describe my situation first.
I have a rather complex package which has been in use for a long time. It stopped working after I made some changes to it today. The package still worked from inside the Visual Studio (2017), but gave a few different types of errors when run on the server as an agent job. The errors were:
Column data type DT_R8 is not supported by PipelineBuffer class.
System.IndexOutOfRangeException: Index was outside the bounds of the array.
Solution, which worked on two of my packages, was to recreate the Script Component. By recreating, I mean that create a brand new Script Component, as opposed to simply copy-and-paste the entire old Script Component. Then, manually transfer the code starting from "public class ScriptMain : UserComponent" and all the way to the end.
Related
I have a problem with Flash Builder 4.7
I get errors each time I build project. These errors disappear after using "Clean" command. Errors are always about implicit coercion of identical classes. Strange thing is that errors always show in my currently active tab.
Examples:
"Implicit coercion of a value of type starling.display:DisplayObject to an unrelated type starling.display:DisplayObject"
"Implicit coercion of a value of type flash.display:BitmapData to an unrelated type flash.display:BitmapData"
All of them disappear after using Clean. So I don't know what to do, coz now I have to clean project each time I need to run it. And it takes a lot of time.
Ok. Nobody had this kind of error before so I will write how to fix it.
I found somewhere that I need to change external libraries. Insead of using code version I used compiled version of libs. But it didn't help.
I tried to create new workspace but it didn't help.
Finally I had to reinstall Flash Builder, made new workspace and new project from a scratch (I didn't import old project, but rather copied content from old project) and now it's ok.
I'm getting a really tough error in SSIS 2012.
I am just running in SSDT.
I have a script task inside a For...Each block.
It runs fine the first time it is reached.
The second time it is reached, I get a generic "Exception thrown by object of invocation error", attributed to the script, at the script task.
It is a small script, all inside Main(), and with a Try...Catch block.
I am not hitting the Catch, which adds custom text.
It seems like it is behaving as if it never enters the Script...
except
if I actually set a breakpoint in it.... in which case it runs fine,
whether I step line-by-line or just hit F5.
I know this isn't terribly specific, but I'm hoping someone has seen this.
Has anyone seen anything like this before?
As mentioned, I have tried debugging (obviously), but then I don't get any error.
I have tried changing my variable access from the basic to through VariablesDispenser.LockOneForRead, in case it is something with variables that happens before Main().
I think I got all the places the variables are used in the loop, but that didn't help.
Because this was so killer, I'm going ahead and answering it.
It was actually an un-"declared" variable, but in my Catch block.
Copy-paste error :/
I was using a variable as
"Dts.Variables["TaskName"]"
in the Catch block, but I had not selected it in the Script Task window.
I have no idea why it didn't give me the specific "not found in collection" error.
I have certainly run into this before and seen that. :/
Just ran into that and it was a bear to figure out.
What it was was that I had a static variable (actually a singleton class) defined. Evidently, SSIS does NOT re-initialize a program on second and subsequent invocation, but holds the image and simply re-launches at its entry point.
My Singelton class (and I've verified for several static variables now) does NOT get re-initialized. It still exists. The issue was that it was created with the Dts Variable set that existed on first invocation of the script. Since it's "self" values was not null it never re-instantiated.
When I recognized what was happening, it was of course easy to fix, but one gets used to a stand-alone environment where every program instance has its static values null or set with a static initial value. We presume automatically that a new "run" of the program will likewise have its global spaces "clean" .... in point of fact I'm fairly sure that was what I read as part of the C# "contract" that I'd never need to worry about historical cruft in memory spaces for variables.
Well it turns out that that "contract" is about as good as any Microsoft will make you sign.
It's actually a mixed blessing. Knowing that it happens I can use it to save a lot of overhead in scripts invoked in loops ... but as it's not well, or perhaps un- documented I'll need to be careful to have work-arounds and default loading tests if it turns out not to be true in some future release or version.
(Be gentle in your criticism... I'm new to SSIS. Not so new to program paradigms. CICS mainframe programs would re-init global spaces unless you did things in the linkage to signal it not to ... if you're going to re-invent wheels at least look at old wheels).
-- TWZ
I have a small problem (I assume...)
I'm loading a flatfile (csv) and I want to add a rownumber to the dataflow. Using the RowNumber transforation works good for both output paths (source and error) individually. But what if you want to use the same rownumber in both paths to be able to track where (in the file) an error occured. I have scratch my head long enough now and I'm just throwing it out here since I'm pretty sure other people has tumbled across this one...
I have tried the script transformation which seems to work for a while but then it hangs the load.
Any suggestion on how to solve this issue is greatly appreciated.
If I understand you correctly, dynamically generating the number with a script component for the dataflow is not a problem for you.
What I would recommend you is to adopt the following philosophy for stable etl processes coming from files:
Never cast anything in the connector, just import the fields as nvarchars of the maximum lenght they will achieve.
Cast and control each column to your specification.
If a row cannot be read, you will not know the index, but you will know that the file is malformed (extremely rare in my experience, for half transferred files), and it should be rejected anyway.
A quick screenshot of a part of a file loading process shows how the rejection (after assigning row_id) can work (link to dataflow image). To this you can add further countless checks (duplicates...) and even have a repository for the loaded files to check upon the rejects and whatever else you might want to control (Link to control flow image).
In some of my processes, I even use a flat file connector and just import each row as a bulk text and then split it in columns with an intermediate script component, allowing for different versions of the columns in the files.
Anyway, sorry not to be more detailed (due to my status I can't add more links or any images), but I hope that you understand the concept.
Regards,
Francisco.
I am working on a custom data transformation component. I'm using NUnit and NMock2 to test as I code. Testing and getting the custom UI and other features right is a huge pain, in part because I can't find any documentation about the order in which SSIS invokes methods on the component at design time as well as runtime.
I can correct the issues readily enough, but it's tedious and time consuming to unregister the old version, register the new version, fire up the test ssis package, try to display the UI, get an obscure error message, backtrace it, modify the component and continue.
One of the big issues involves the UI component needing access to the componentmetadata and buffermanager properties of the component at design time, and what I need to provide for to support properties that won't be initialized until after the user enters them in the UI.
I can work through it; but if someone knows of some docs or tips that would speed me up, I'd greatly appreciate it. The samples I've found havn't been much use; they seem to be directed to showing off cool stuff (Twitter, weather.com) rather than actual work.
Thanks in advance.
Here's a timeline of the run-time execution sequence: Run-time Methods of a Data Flow Component
The design-time sequence isn't laid out in MSDN that nicely because there just isn't such a sequence, but here's what I think/know:
1. ProvideComponentProperties - called ONCE EVER when the component is dropped on the design surface.
2. PerformUpgrade - called ONLY if the metadata version is different than the version attribute on the class - called on package load.
3. Validate - called FREQUENTLY... during package load, input attachment, entry into editor, etc...
4. ReinitializeMetaData - called infrequently, and only because a VS_NEEDSNEWMETADATA value is returned from Validate.
Everything other override (OnInputAttached, etc.) is fairly straightforward as to when it gets called. Here's the not-so-descriptive article: Design-time Methods of a Data Flow Component.
I have a small solution that i provide to several people. The solution consists of amongst other things an existing SsisPackage (default.dtsx). I modify this according to some settings in my application to prepare it for transfering data from a datasource to a datamart. I add a sequence container, add a foreachloop and add a dadtaflowtask. Each of these are added (i know i can see them in the package explorer) and the package can execute without problems.
My problem is that when i look at my package i cannot see the elements i added, they are invisible, they exist in the xmla and are visible in the package. Anyone got a possible solution for this - it makes the package almost impossible to maintain for the receiving developer.
EDIT / SOLUTION: For posterity i will document my findings :-)
I have been conparing the underlying xml structure to find this solution so here it comes. The problem is due to the fact that im modifying an already created package. When the package was first made in BIDS layout information was saved within a xml tag called <packagevariable> - all elements have their layout written in encoded xml in the xmla file.
When i go and modify the package through C# and add new elements the layout information is not updated! So when the package is loaded within the BIDS for modification the BIDS recognizes that some layout information is available, so it will use this information to layout the ENTIRE PACKAGE. This means that while we have no layout information for the elements we have added, they are not layed out.
My next step will be to investigate into removing the layout information - then the package will layout the package in a default manner. I will investigate into how to remove it using the API (first priority) else i will have to open the file at XML/Text and make a manual removal (hopefully i will avoid this).
Enjoy!