Will OnError Event Fire If I Use Try/Catch In Script Task?
Feb 4, 2008
Greetings,
We have a package that runs on 3 servers, all based in different countries and time zones. Each package does logging to a common SQL Server based in New York. (We log to the same server to make monitoring of the package run results easier.) We expect that our overseas servers will occassionally fail to make a database connection and have coded a Try/Catch block in our Script task to ignore errors that occur when attempting the SQL Server logging.
The problem is that the OnError event handler defined at the package level is being called whenever a server fails to make a database connection. The Catch block appears to not be called at all. I've included below the short method that does the SQL Server logging. The "Dts.Log" line logs to a SQL Server and usually works. However, when it fails, the "WriteEventLogEntry" method is supposed to be called to write an error to the server's event log. (I haven't included the "WriteEventLogEntry" code but it works fine when called elsewhere in the package to do our non-error event logging.)
Public Sub WriteSqlServerLogEntry(ByVal logMessage As String, ByVal dataCode As Integer, ByVal dataBytes() As Byte, ByVal rowsInserted As Integer)
Try
Dts.Log(logMessage, dataCode, dataBytes)
Catch ex As Exception
WriteEventLogEntry("An exception was thrown while attempting to log the following message to the SQL Server provider: " + logMessage, EventLogEntryType.Error, rowsInserted)
End Try
End Sub
Shouldn't a Catch block prevent the OnError event from being raised? How can I change my package to ignore all errors that occur when attempting SQL Server logging?
I have a package which have two sequence container, first container is used to transfer data to a staging area and second sequence container is used to transfer to destination from that staging area. And I also apply transaction required to second sequence container. There are several execute sql tasks and several data flow tasks inside two sequence container. first sequence container( 1.execution sql task-> 2.data flow ->3.execution sql task) -> second sequence container(4.execution sql task-> 5.execution sql task-> 6.data flow-> 7.data flow -> 8.execution sql task-> 9.data flow...)
I create ExecutionLog table which is used to log status for this package on our sql server. First this status field is null, then during this package run , it change to 'in process', and after this package finished, it change to 'success' or 'failure' depending this package can run successfully or not. This package can be run only if status is 'success' ,'failure' or null. So I need to change this status field during package execution. For updating package to failure, I need to add event handler to change that status using execute sql task.
First time I perform to execute sql task on onError event handler tab (this event handler is applyed on package level ) . And for testing envent handler I use old schema version to make sure I get failure for '8 execution sql task'. But package seems to get stuck at '8 execution sql task' inside second sequence container( always yellow when I run from ssis) and never fire envent handler. '8 execution sql task' is used to update related table.
Second time I remove onError envent handler and change to use on onTaskFailed event handler tab (this event handler is applyed on package level ) . But everything is the same as using onError event handler except I got error output but still can not fire event. Why '8.execution sql task' can not fire onError or onTaskFailed? For this case what kind of event handler I need to use, what kind of level I need to apply for this event handler.
We are generating log file in our SSIS package by enabling the built-in feature of SSIS tool. We are generating log for the "OnError" event. This also recorded the error/failed task messages in the text file "log.txt". That error information is too complex with more unwanted information like below
----------------OnError,,,pkgExtract,,,8/30/2006 11:50:04 AM,8/30/2006 11:50:04 AM,-1071636471,0x,An OLE DB error has occurred. Error code: 0x80040E21. An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80040E21 Description: "Multiple-step OLE DB operation generated errors. Check each OLE DB status value, if available. No work was done.".
OnError,,,pkgExtract,,,8/30/2006 11:50:04 AM,8/30/2006 11:50:04 AM,-1071607780,0x,There was an error with input column "create_user_id" (116) on input "OLE DB Destination Input" (103). The column status returned was: "The value violated the integrity constraints for the column.".
OnError,,,pkgExtract,,,8/30/2006 11:50:04 AM,8/30/2006 11:50:04 AM,-1071607767,0x,The "input "OLE DB Destination Input" (103)" failed because error code 0xC020907D occurred, and the error row disposition on "input "OLE DB Destination Input" (103)" specifies failure on error. An error occurred on the specified object of the specified component. ---------------------------------
This is infact not in a better readable format. We also don't want to do our error logging in database.
Is there any way of defining our error log and create error error log with customization of our messages . Can we do it using OnError event handler.
Please help us with some good solution to avoid giving this confused error log messages.
I am having a few problems getting the opomum configuring the OnError event hendler for my new package. What im trying to do is log the Error event and sound out an email (which i am achiving) where i am encountering a problem is trying to determin the severity of the error.
What i would like to achive is to send an email and log the error (as i currently do) but if the error has the power to stop the package from executing i would like to fire an additional script to move the loading files to a failed location.
My initial thoughs were to put an expression the on the procdural constraint in he error handeler but i cant find which System variable to apply the logic to.
I have a package name "Package1" and I have a few data-flow tasks in it. whenever anything fails in the "Package1", I want to send out the failed email to alert myself. So first step, I went to EventHandler tab, and select Executable as "Package1" and Event Handler as "OnError". and then I added SendMailTask. I manually ran SendMailTask, failed email send to me okay. But when I run package from Microsoft visual Studio (IDE), the package failed but it doesn't send out failed email.
Error code: [174]] Error: SSIS Error Code DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER. The AcquireConnection method call to the connection manager "xxx" failed with error code 0xC0202009. There may be error messages posted before this with more information on why the AcquireConnection method call failed.
Maybe I misunderstand OnError eventhandler, or I set up it wrong.
I have included the Send email task and sending email from SSIS package on Error event.
But for an error I am receiving multiple atleast 10-15 email generated. i got only 2 emails with revelant error message and other email gives message like "
Thread "WorkThread1" received a shutdown signal and is terminating. The user requested a shutdown, or an error in another thread is causing the pipeline to shutdown."
I have included ''@[System::ErrorDescription]' as an email attachment.
Is there any way to get only specific relevant error email.
I have an SSIS package that contains a For Each Loop Container. I have three Data Flow tasks within the container. I have an OnError event handler associated with the encapsulating container. When one of the Data Flow tasks within the For Each Loop Container fails, the OnError for the Loop Container gets called 5 times. The OnError handler is just a script task that sends a notification email. I am not explicitly Dts.taskresult = failure, nor am I calling FireError.
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?
I have a package on which i've applied a package level OnError event handler. The OnError event handler includes a Script Task (that builds up a string of errorCode, errorDescription, MachineName etc...) and a WebService Task that calls a webservice to send an email including the built up string from the script task in the body of the email. This has worked fine in one package where i've applied it but for some reason in a second package the existence of an OnError package level event handler seems to be completed ignored. I'm causing various package object to fail but the OnError handler never fires. I know the obvious answer is find what's different between the two packages but i can't see that any is different (in relation to package level OnError event handling).
Has anyone else come across this? Any suggestions?
I have created an OnError Event Handler to catch an error in the Execute SQL Task in the Control Flow. On error I am simply inserting a few parameters in a DB table using Execute SQL Task. I followed the instructions in: [URL]....
Now when I run this error hanlder task manually it runs fine but when I purposely fail the SQL Task it never fires the error handler. I am not sure why. I checked the DisableEventHandler property and it is set to False.
My project currently has task which have their own individual event handlers that get called onError (setup event messages). I also have a package level event handler that performs a generic task (sending events to the windows eventviewer) In the package level event handler there is a script task that decides on a boolean variable whether to "Success" or "Failure" to different task. When I fail one task of the main control flow, the task level event handler runs, then the package level event handler runs, and then it also runs again for some unknown reason. The second time it runs it picks up the value of a variable set in the variables window. However, I change this value at runtime to the value from a database. I can't understand why it would run the second time, and if it did run why it would have the value from the variables window and not the value that is set in memory. It's like the event handler runs with the value from memory and then runs and picks the values back out of the variables window, replacing the db values and re-runs.
Maybe the package itself is failing all together and then re-runing the package level event handler?
Hi In the page load of my webpage I call a databind for a gridview. It generally calls this event handler : protected void SqlDataSource1_Selected(object sender, SqlDataSourceStatusEventArgs e)
However sometimes (seemingly randomly) it doesn't. Any ideas? Thanks p
I have an activated SP that is issuing PRINT statements.
These are raised as ErrorLog and EventLog events when using SQLProfiler
However if you attach an event notification for ERRORLOG and EVENTLOG, nothing appears in the queue. Any other ERRORLOG or EVENTLOG event caught by profiler is caught by the event notification as expected.
I want to know if there is an event in profiler can catch web application name. If yes, which one? For example, there is SP named sp_storedprocedure that is called by www.web.com and www.web.com/forumdisplay.php?f=23. I want create a profiler trace that can catch www.web.com or www.web.com/forumdisplay.php?f=23 calling sp_storedprocedure. Any suggestion is great appreciated.
I'd like to know if there is a way to catch the error messages when a tasks fails, that's because i's like to store every message on a user variable, so i could log all of them later, I was thinking that it may be possible with the event handlers, could it be?
I have a SQLDataSource bound to a DetailsView. In which event would I catch a Primary Key violation? Would be an event of the SQLDataSource or the DetailsView? And which particular event? A small example would be great. Thx.
hi, i want to execute a finctionX() based on the returned resultset of SQLDataSource. For example, if the SELECT command returns nothing based on a specific search criteria then I want to execute functionX(). Currently, I have a string that displays "No Result" in the GridView in such case. How to catch the resultset of SQLDataSource? -nero
I have been testing with the WMI Event Watcher Task, so that I can identify a change to a file. The WQL is thus:
SELECT * FROM __InstanceModificationEvent within 30 WHERE targetinstance isa 'CIM_DataFile' AND targetinstance.name = 'C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Backup\AdventureWorks.bak'
This polls every 30 secs and in the SSIS Event (ActionAtEvent in the WMI Task is set to fire the SSIS Event) I have a simple script task that runs a message box).
My understanding is that the event polls every 30 s and if there is a change on the AdventureWorks.bak file then the event is triggered and the script task will run producing the message. However, when I run the package the message is occurring every 30s, meaning the event is continually firing even though there has been NO change to the AdventureWorks.bak file.
Am I correct in my understanding of how this should work and if so why is the event firing when it should not ?
I'm very new to using SSIS. I have a large number of SQL databases (archived .mdf/.ldf files) with data that needs to be imported into one giant database. My problem is that half of the databases are missing a column that was introduced in a newer version of the database schema and when my package executes my data flow task it errors out. I basically get a message stating that it cannot prepare any statements because the SQL command that I am using is trying to select column data from a column that doesn't exist.
I figured that I could set the OLEDB Source inside of my Data Flow to have a Data Access Mode = SQL command from variable. The variable bound to the component is called "MySelectQuery" and is initially set to my "new format" query. From there I could create an event handler for the OnError event of the Data Flow Task, switch value of "MySelectQuery" to equal the "old format" query and rerun the Data Flow Task.
I'm not sure how to accomplish restarting my Data Flow Task after changing "MySelectQuery" in the OnError event. I just tried setting up the package to use CheckPoints but it doesn't seem to be working right for me. When I restart the package it starts over even though there is a checkpoint file that seems to have captured the state after the failure.
Is there a way I can stop a script task of a control flow from raising OnError Events? or Is there a way I can Set Dts.Results to Fail without having the script task raise OnError event.
I'm having trouble with a Script Component in a data flow task. I have code that does a SqlCommand.ExecuteReader() call that throws an 'Object reference not set to an instance of an object' error. Thing is, the SqlCommand.ExecuteReader() call is already inside a Try..Catch block. Essentially I have two questions regarding this error:
a) Why doesn't my Catch block catch the exception? b) I've made sure that my SqlCommand object and the SqlConnection property that it uses are properly instantiated, and the query is correct. Any ideas on why it is throwing that exception?
i would like to know how i can retrieve the file path+name of a file detected by the WMI Event Watcher task, so that I can assign this to a variable for an Import task
I want to watch a directory 24 hours a day to launch SSIS packages as files arrive. There are several options I have found to accomplish this:
Use the WMI Event Watcher task in SSIS to launch the packages as files arrive. Leave the package with the WMI Event Watcher task running all day long everyday Create a Windows service that uses WMI to detect file arrival and launch packages Schedule SQL Server Agent to run the package when a WMI event is raised
What is the best practice? Are there better approaches that I have not listed?
I am using this task as the first task in my control flow.I want to check if a particular file exists in the particular location.IF exisists run the package else no.
Hi All, I need to send out email when error occurs in the package. Is it a good practice to put the send email task in the event handler? Then MaximumErrorCount is set to 1. But for some reason, some time I saw more than one email are sent out. Please advise. Thanks
All of a sudden my application started crashing when trying execute dml statements on sql server mobile database (sdf file). Frustating thing is that whole application crashes without any error message. this happens for all kinds for DML statement but not all the time. Sometimes it would fail for delete statement such as delete from table; or for insert into statement
my problem catch does not catch the error. There is no way to find out teh what is causing this error
SqlCeConnection sqlcon = new SqlCeConnection("
Data Source = '\Program Files\HISSymbol\HISSymboldb.sdf';"
);
SqlCeCommand sqlcmd = new SqlCeCommand();
sqlcmd.CommandText = Insert into company('AA', 'Lower Plenty Hotel');
sqlcmd.Connection = sqlcon;
SqlCeDataReader sqldr = null;
try
{
sqlcon.Open();
//use nonquery if result is not needed
sqlcmd.ExecuteNonQuery(); // application crashes here
}
catch (Exception e)
{
base.myErrorMsg = e.ToString();
}
finally
{
if (sqlcon != null)
{
if (sqlcon.State != System.Data.ConnectionState.Closed)
My SQL Server 2005 SP4 on Windows 2008 R2 is flooded with the below errors:-
Date  10/25/2011 10:55:46 AM Log  SQL Server (Current - 10/25/2011 10:55:00 AM) Source  spid Message Event Tracing for Windows failed to send an event. Send failures with the same error code may not be reported in the future. Error ID: 0, Event class ID: 54, Cause: (null).  Is there a way I can trace it how it is coming? When I check input buffer for these ids, it looks like it is tracing everything. All the general application DMLs are coming in these spids.
Server 2003 SE SP1 5.2.3790 Sql Server 2000, SP 4, 8.00.2187 (latest hotfix rollup) We fixed one issue, but it brought up another. the fix we applied stopped the ServicesActive access failure, but now we have a failure on MSSEARCH. The users this is affecting do NOT have admin rights on the machine, they are SQL developers. We were having
Event Type: Failure Audit Event Source: Security Event Category: Object AccessEvent ID: 560 Date: 5/23/2007 Time: 6:27:15 AM User: domainuser Computer: MACHINENAME Description: Object Open: Object Server: SC Manager Object Type: SC_MANAGER OBJECT Object Name: ServicesActive Handle ID: - Operation ID: {0,1623975729} Process ID: 840 Image File Name: C:WINDOWSsystem32services.exe Primary User Name: MACHINE$ Primary Domain: Domain Primary Logon ID: (0x0,0x3E7) Client User Name: User Client Domain: Domain Client Logon ID: (0x0,0x6097C608) Accesses: READ_CONTROL Connect to service controller Enumerate services Query service database lock state
