Reservoir Sampling is a step in the Statistics Plugin for Process Studio Workflows. The reservoir sampling step samples a specified number of rows from an input stream. The step uses uniform sampling; all incoming rows have an equal chance of being selected.
S Tab:
No.
Field Name
Description
1
Step name
Specify the name of the step as it appears in the workflow workspace. This name has to be unique in a single workflow.
2
Sample size
Select how many rows to sample from an incoming stream. Setting a value of 0 will cause all rows to be sampled; setting a negative value will block all rows.
3
Random seed
Choose a seed for the random number generator. Repeating a workflow with a different value for the seed will result in a different random sample being chosen.
Sequential Begin is a step in the Deprecated category in Process Studio, only for backward compatibility.
Sequential Begin and Sequential End steps are used in pairs in a workflow. Process Studio executes all the steps in parallel by default. For any need to execute certain steps sequentially, they can be placed between these steps. Both the steps are now deprecated and are not encouraged to be used in workfows.
S Tab:
No.
Field Name
Description
1
Step name
Specify the name of the step as it appears in the workflow workspace. This name has to be unique in a single workflow.
Sequential End is a step in the Deprecated Plugin in Process Studio, only for backward compatibility.
Sequential Begin and Sequential End steps are used in pairs in a workflow. Process Studio executes all the steps in parallel by default. For any need to execute certain steps sequentially, they can be placed between these steps. Both the steps are now deprecated and are not encouraged to be used in workfows.
S Tab:
No.
Field Name
Description
1
Step name
Specify the name of the step as it appears in the workflow workspace. This name has to be unique in a single workflow.
2
Sequential Begin Step
Select the corresponding Sequential Begin Step from the fields in the drop down list.