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Overview

A task plan that contains 1 task with 3 streams will process all streams at the same time.

A task plan that contains 3 tasks, each containing 1 stream, will run the streams one by one

For tasks that affects streams, you have a choice in how you structure the tasks.

Either each task affects one stream

Create a set of tasks, each one to operate on a single stream. Add the set of tasks to the task plan. In this case PhixFlow will process the tasks, and therefore the streams one by one, in order. It will wait for the previous task to complete, before starting the next.
For example, a task plan contains:

  • TaskA for stream-a
  • TaskB for stream-b
  • TaskC for stream-c.

PhixFlow will process TaskA until it stream-a is finished, then TaskB until stream-b is finished, then TaskC until stream-c is finished.

This is the safest way to set up tasks that affect streams. Always use this method when there are dependencies between streams.

Or one task affects multiple streams

Add multiple streams to a task, then add the task to the task plan. In this case you have no control over the order in which streams will be processed. 
For example, a task plan contains a single task. The task affects stream-a, stream-b and stream-c. PhixFlow will process all the streams at the same time.

Only use this method if there is you are sure there are no dependencies between the streams.


If a mandatory task fails, then the next task should not be started.


Excerpt

Tasks in PhixFlow perform various jobs, including, running analysis on streams, archiving, and clearing old managed file and performance log records.

Tasks are bundled into task plans and are configured to run in a specific order. Task plans can be requested by users, triggered by actions or schedule to run on a specific date and time.

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See Also

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Basic Settings

FieldDescription
NameThe name of the task plan.
Enabled

When the task plan configuration is complete, tick this box to enable it for use. To prevent the Task Plan being run, for example during maintenance, untick this box and the Task Plan will not run on the schedule or manually.

ScheduledIf ticked, an extra section will appear. This allows a regular schedule to be set up for the task plan.
Suspend on FailureIf ticked, the Suspended flag will be set to true if any error messages are generated by the task plan during execution.
SuspendedIf the field Suspend on Failure is ticked, this box will be ticked by the system if any error messages are generated when the task plan is executed. This indicates that there is a problem which should be fixed before the Task Plan is run again. The next time the task plan runs, if this flag is still ticked, it will simply generate a one line error message in the log file stating that it cannot run as it has been suspended. To un-suspend the task plan, untick the field.

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You can set up an automated email to be sent with the results of a task plan run.

Emails are generated in an outbound queue and actually sent by a separate email demon process. If it is not possible to send emails immediately, e.g. because the email server is down, the email demon process will try to re-send periodically until either it succeeds or until a timeout period has passed.

FieldDescription
Email FromThe Email Address the generated email will appear from.
Subject ExpressionAllows the user to build a PhixFlow Expression which will be used to create the Email Subject. The internal variables _errors, _warnings, _messages, _suspended  and _taskPlan can be used in the Subject Expression.
Message ExpressionAllows the user to build a PhixFlow Expression which will be used to create the message body of the email. The internal variables _errors, _warnings, _messages,  _suspended and _taskPlan can be used in the Message Expression.

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