Run Flows in Cluster
- 04 Mar 2024
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Run Flows in Cluster
- Updated on 04 Mar 2024
- 1 Minute to read
- Print
- DarkLight
Article Summary
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| Step Details | |
| Introduced in Version | 9.0.0 |
| Last Modified in Version | 9.0.0 |
| Location | Flow Management > Iteration |
Run Flows in Cluster has all the functionality of the Run Flows for List step, but can disperse the work load across nodes in a cluster.
Prerequisites
This step requires the use of Clusters. It is also only available in v9+.
Properties
When configuring the Batch Size setting chose what is best for the environment this Step is being used on. Setting the number high means there will be fewer calls to Redis, but it will take longer for the sub-flows to begin running. Setting the number low means that there will be many calls to Redis.
For instance having 2000 items on the list and a Batch Size of 50 would mean 40 calls would be made to Redis.
For Workers on Each Node it is possible to overwhelm the a node with high resource Flows. If Flows are particularly complex and resource intensive, it is best to keep the number low. However if the Flows are simple the Worker number can be set higher.
Cluster Settings
| Property | Description | Data Type |
|---|---|---|
| Batch Size | The amount of pieces of data on the list that will go through the Step, and calls made to Redis, at a time. | N/A |
| Workers on Each Node | The number of Flows each node can run at a given time. | N/A |
| Times Out | How much time without any activity the step will wait until the Flow fails. | N/A |
| Stop Execution on First Fail | The rest of the list will not run once a failure has occurred. | N/A |
Data
| Property | Description | Data Type |
|---|---|---|
| Input Type | Allows you to pick the data type | N/A |
| Output Type | Defines the output data type for the step. This will return the list of results received from the Flow. | N/A |
Outputs
| Property | Description | Data Type |
|---|---|---|
| Error Messages | A list of all error messages produced if there are failures. | List of String |
| Failed Item | A list of the items that did not complete. | List of |
Step Changes
| Description | Version | Date | Developer Task |
|---|---|---|---|
| Introduced | 9.0 | March 24, 2024 | DT-039341 |
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