How to debug SSIS package

You or your team or someone has written an SSIS package which is running flawlessly over few days/months/years. One fine day SSIS package is failing continuously and you need to troubleshoot and fix the issue.

Error message is not showing much information about why the package has been failed and until what step the package was successful or failed.

What will you do in this scenario?

Debug! Debug! Debug! Let’s see how this works.

You can debug this using breakpoints and data viewer in SSIS. Let’s explore this.

Data Viewer:

You can view the data while the ssis package is running in each step. This will help you to know what data is processing in each step in data flow task. You can see that in the below screenshot.


After you execute the package then the result can be seen as below


Break Points:

You can also debug a package by setting the breakpoints on a package task/container as below



As you can see in the above screenshot that you can enable any of the above options to debug the ssis package. Also can see each option in the below table.

Break condition Description
When the task or container receives theOnPreExecute event. Called when a task is about to execute. This event is raised by a task or a container immediately before it runs.
When the task or container receives theOnPostExecute event. Called immediately after the execution logic of the task finishes. This event is raised by a task or container immediately after it runs.
When the task or container receives theOnError event. Called by a task or container when an error occurs.
When the task or container receives theOnWarning event. Called when the task is in a state that does not justify an error, but does warrant a warning.
When the task or container receives theOnInformation event. Called when the task is required to provide information.
When the task or container receives theOnTaskFailed event. Called by the task host when it fails.
When the task or container receives theOnProgress event. Called to update progress about task execution.
When the task or container receives theOnQueryCancel event. Called at any time in task processing when you can cancel execution.
When the task or container receives theOnVariableValueChanged event. Called by the Integration Services runtime when the value of a variable changes. The RaiseChangeEvent of the variable must be set to true to raise this event.

** Warning ** The variable associated with this breakpoint must be defined at the container scope. If the variable is defined at the package scope, the breakpoint does not get hit.

When the task or container receives theOnCustomEvent event. Called by tasks to raise custom task-defined events.

Both breakpoints and data viewer options are very useful when you troubleshoot/debug/develop complex ssis packages.

Hope you like the post!

Happy Reading!


Ramasankar Molleti





Published by Ramasankar

Hi. I’m Ramasankar Molleti. I’m a passionate IT professional with over 14 years of experience on providing solutions for customers who are looking on cloud computing, Database Migration, Development, and Big Data. I love learning new technologies and share my knowledge to community. I am currently working as Sr Cloud Architect with focus on Cloud Infrastructure, Big Data. I work with developers to architect, build, and manage cloud infrastructure, and services. I have deeep knowledge and experience on working with various database platforms such as MS SQL Server, PostgeSQL, Oracle, MongoDB, Redshift, Dyanamodb, Amazon Aurora. I worked as Database Engineer, Database Administrator, BI Developer and successfully transit myself into Cloud Architect with focus on Cloud infranstructure and Big Data. I live in USA and put my thoughts down on this blog. If you want to get in touch with me, contact me on my Linkedin here: My Certifications: Amazon: AWS Certified Solutions Architect – Professional AWS Certified DevOps Engineer – Professional certificate AWS Certified Big Data – Specialty AWS Certified Security – Specialty certificate AWS Certified Advanced Networking – Specialty certificate AWS Certified Solutions Architect – Associate Microsoft: Microsoft® Certified Solutions Associate: SQL Server 2012/2014 Microsoft Certified Professional Microsoft® Certified IT Professional: Database Administrator 2008 Microsoft® Certified Technology Specialist: SQL Server 2008, Implementation and Maintenance

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