Workflow Hosting and Tracking 3.7

1. Workflow Hosting and Tracking

2. Workflow Hosting and Tracking
• Understand how Workflow tracking works
• Understand Workflow persistence
• Understand Workflow hosting
Goals

3. Workflow Hosting and Tracking
• Viewing tracked Workflows; canceling and restarting
• Using persistence points in Workflows
• Hosting Workflow endpoints
Lesson Plan

4. Workflow Hosting and Tracking
Workflow Tracking
• Workflow Tracking facilitates the
management of workflows
• Provides information about
workflow instances and their
state/status
• Allows for the inspection of
messages
• Provides an interface for viewing
the details of a workflow, and it’s
execution,
• Supports restart, abort and cancel
capabilities

5. Workflow Hosting and Tracking
Workflow Tracking
• Double clicking on a workflow
tracking record will bring up the
workflow tracking detail window.
• Provides a detailed look at the
workflow instance
• The progress and status of each
activity step
• The arguments associated with
each activity step
• The messages associated with the
workflow.

6. Workflow Hosting and Tracking
Restarting and Cancelling Workflows
While a Workflow is running, you
can cancel the execution of the
workflow by
• Going into workflow tracking
• Right clicking the workflow record
• Selecting cancel from the drop down
menu that appears.
Likewise if a work flow is aborted,
for any reason, you can
• Right click the workflow record
• Select start to re-start the workflow
from it’s last persist point (if any), or
the beginning if it has not yet been
persisted.

7. Workflow Hosting and Tracking
Purging Workflows
• Each database needs a SQL Server Agent
job to purge workflow tracking records
marked for deletion.
• The job creation script is called
CreateJob_PurgeWorkflowTracking.sql and
can be found in the Sql folder under the
Neuron ESB installation folder (ex:
"C:Program FilesNeudesicNeuron ESB
v3Sql").
• Open the script file and replace the
${DatabaseName} placeholder.
• By default the script enables the job, sets the
job's owner as "sa" and schedules the job to
execute every 10 minutes.
• Make sure to start the SQL Server Agent
service.

8. Workflow Hosting and Tracking : Demo
Purpose:
To familiarize users with Workflow Tracking in the Neuron ESB Explorer
Objectives:
It will acquaint users with the following areas of the messaging section:
• Viewing workflow instances
• Viewing Tracking Details
• Canceling Workflows
• Restarting Workflows

9. Workflow Hosting and Tracking
Deploying a Workflow Endpoint
Once a workflow definition has
been created it will need to be
hosted by a workflow endpoint in
order to be able to process
messages.
Creating a workflow endpoint will
require a subscriber, topic,
definition and endpoint host.
Once created a workflow endpoint
will immediately be hosted by
Neuron ESB, and begin processing
messages.

10. Workflow Hosting and Tracking
Workflow Endpoint : Settings
• Max Concurrent Workflows – Maximum
number of concurrent instances of this
workflow endpoint that will exist at one
time
• Event Timeout – Time (in seconds) an
event will process before throwing a
timeout error
• Max Tracking Variable Length – Maximum
length of information stored in a variable
to be saved to the database.
• Enable Tracking Workflow Activity
Execution – Enables the tracking of
activity execution in a workflow in
workflow tracking.
• Store Arguments and variables for
Workflow tracking activities – Enables the
storing of arguments and variables when
tracking workflow activity execution

11. Deploying a Workflow Endpoint : Demo
Purpose:
To familiarize users with Workflow Endpoint in the Neuron ESB Explorer
Objectives:
It will acquaint users with the following areas of the messaging section:
• Creating a Workflow Endpoint
• Deploying a Workflow Endpoint
• Verifying Workflow Operations

12. Workflow Hosting and Tracking : Lab
Purpose:
Learn how to host a workflow definition via a workflow endpoint in Neuron ESB.
Objectives:
• Create a Workflow Endpoint
• Sending a message to the workflow
• Viewing Workflow Tracking