Frequently asked questions about Operation Center, covering nodes, instances, resource groups, and priorities.
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Nodes and instances
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Resource groups
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Other
What is the relationship between auto triggered nodes and auto triggered node instances, data backfill instances, and test instances?
Every night, DataWorks automatically generates and schedules cycle instances for the next day based on your auto triggered nodes. You can also manually trigger an auto triggered node to generate and run a data backfill instance or a test instance.
When creating a node, you can opt to generate an instance immediately upon publishing. After the node is published to Operation Center, the instance appears on the Cycle Instance page.
How long are logs for instances and the instances retained?
On the shared resource group for scheduling, instances are retained for 30 days and logs are retained for 7 days.
On exclusive resource groups for scheduling, both instances and logs are retained for 30 days.
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If the logs for a completed instance exceed 3 MB, the system automatically clears them daily.
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You cannot manually delete an instance after it is generated. If a node no longer needs to run, you can freeze the auto triggered node or the instance. Freezing an auto triggered node differs from freezing an instance. For more information, see Freeze and unfreeze a node.
Why cannot I perform big data computing on a resource group for scheduling?
Resource groups for scheduling only provide limited resources for node scheduling and are not suitable for big data computing. Use MaxCompute instead for large-scale data processing.
How do I adjust the priority of a node instance?
The priority of a node instance is determined by the baseline it belongs to. Baseline priority can be set to 1, 3, 5, 7, or 8, where a larger value indicates a higher priority. The system allocates scheduling resources to higher-priority baselines first.
To change the run priority of daily instances generated from an auto triggered node, adjust the baseline priority.
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Go to the Operation Center page.
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In the left-side navigation pane, choose .
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Click Edit in the Actions column of the baseline that you want to modify.
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In the Modify Baseline dialog box, set the Priority parameter.
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Click Completed.
How do I view the priority of a node instance?
You can view a node instance's priority in .