SSIS Event Handler - How do I get the entire error message? - ssis

Question

I've set up a data flow task with a source component (ODBC to Salesforce) that writes rowcounts and any raised error messages to a table.
I've created an OnError event handler that writes the message from System::ErrorDescription to a variable, and then that variable is written to the table.
My problem is that System::ErrorDescription doesn't have the interesting error message, but the summary.
These are the messages being generated in the Progress tab:
[SRC - Extract Account [6]] Error: System.Data.Odbc.OdbcException (0x80131937): ERROR [HY000] INVALID_LOGIN: Invalid username, password, security token; or user locked out.etc, etc,etc
[SSIS.Pipeline] Error: SRC - Extract Account failed the pre-execute phase and returned error code 0x80131937.
System::ErrorDescription only has the [SSIS.Pipeline] error ("SRC - Extract Account failed the pre-execute phase and returned error code 0x80131937").
How do I return the more detailed [SRC - Extract Account [6]] message?
Thanks,
Jason

Answer 1

You could also just query your SSISDB to get the error.
Use event_name to find your error
Try this:
/*
:: PURPOSE
Show the Information/Warning/Error messages found in the log for a specific execution
:: NOTES
The first resultset is the log, the second one shows the performance
:: INFO
Author: Davide Mauri
Version: 1.1
:: VERSION INFO
1.0:
First Version
1.1:
Added filter option on Message Source
Correctly handled the "NULL" filter on ExecutionId
*/
USE SSISDB
GO
/*
Configuration
*/
-- Filter data by execution id (use NULL for no filter)
DECLARE #executionIdFilter BIGINT = NULL;
-- Show only Child Packages or everyhing
DECLARE #showOnlyChildPackages BIT = 0;
-- Show only message from a specific Message Source
DECLARE #messageSourceName NVARCHAR(MAX)= '%'
/*
Implementation
*/
/*
Log Info
*/
SELECT * FROM catalog.event_messages em
WHERE ((em.operation_id = #executionIdFilter) OR #executionIdFilter IS NULL)
AND (em.event_name IN ('OnInformation', 'OnError', 'OnWarning'))
AND (package_path LIKE CASE WHEN #showOnlyChildPackages = 1 THEN '\Package' ELSE '%' END)
AND (em.message_source_name like #messageSourceName)
ORDER BY em.event_message_id;
/*
Performance Breakdown
*/
IF (OBJECT_ID('tempdb..#t') IS NOT NULL) DROP TABLE #t;
WITH
ctePRE AS
(
SELECT * FROM catalog.event_messages em
WHERE em.event_name IN ('OnPreExecute')
AND ((em.operation_id = #executionIdFilter) OR #executionIdFilter IS NULL)
AND (em.message_source_name like #messageSourceName)
),
ctePOST AS
(
SELECT * FROM catalog.event_messages em
WHERE em.event_name IN ('OnPostExecute')
AND ((em.operation_id = #executionIdFilter) OR #executionIdFilter IS NULL)
AND (em.message_source_name like #messageSourceName)
)
SELECT
b.operation_id,
from_event_message_id = b.event_message_id,
to_event_message_id = e.event_message_id,
b.package_path,
b.execution_path,
b.message_source_name,
pre_message_time = b.message_time,
post_message_time = e.message_time,
elapsed_time_min = DATEDIFF(mi, b.message_time, COALESCE(e.message_time, SYSDATETIMEOFFSET()))
INTO
#t
FROM
ctePRE b
LEFT OUTER JOIN
ctePOST e ON b.operation_id = e.operation_id AND b.package_name = e.package_name AND b.message_source_id = e.message_source_id AND b.[execution_path] = e.[execution_path]
INNER JOIN
[catalog].executions e2 ON b.operation_id = e2.execution_id
WHERE
e2.status IN (2,7)
OPTION
(RECOMPILE)
;

Answer 2

I know the question is old, but I had this problem today.
Each error message line fires OnError event.
So to capture all error lines concatenate the value of yours variable.
Something like that:
Dts.Variables["MyErrorVar"].Value = Dts.Variables["MyErrorVar"].Value + Environment.NewLine + Dts.Variables["System::ErrorDescription"].Value.ToString()