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Torch Log Service

LogBackFlow

Create data backflow task for Volcanoengine Ark high-code application

The data backflow task automatically creates scheduled SQL tasks and log shipping tasks (with the delivery type selected for TOS), helping you export logs that meet the requirements.

This topic explains how to create a data backflow task for Volcano Ark high-code applications.

Prerequisites

The target project and log topic have been created, with indexing configured.

If TOS is chosen as the target for log delivery, the following conditions must be met:

Volcengine Object Storage(TOS) has been enabled, and a bucket has been created in the same region as the specified log topic. For more details, see Creating bucket.

TLS needs to assume the ServiceRoleForTLS role to enable cross-service access to other cloud resources. You must grant TLS permission to access and write to TOS resources.

If you have not yet created the ServiceRoleForTLS role, TLS will guide you through the process when you create the delivery configuration. We recommend authorizing with the VolcanoEngine account. For details, see Cross-service access authorization.

Steps

1 Create a Volcengine Ark High-Code application

Create a VolcanoEngine Ark high-code application that meets the following requirements and deploy functions. For details, see Create trace instance for VolcanoEngine Ark high-code application.

Region: The Volcengine Ark high-code application and TLS must be in the same region.

Enable Trace: When deploying functions in the Volcengine Ark high-code application, make sure the TLS-Trace feature is enabled.

Example:

Deploy a function named ark-bot-procode-176**-function in Volcengine Ark high-code application.

The following resources are automatically created in TLS:

TLS resources	Example value	Description
Trace instance	ark-bot-procode-176**-function	Trace instance name. It is used for managing collected trace data
Project to which the trace instance belongs	ark-bot-procode-496**	The project is used for storing data related to the trace instance.
Trace instance data storage topic	vefaas_ark_ark-bot-procode-176**-function-trace	Topic name for storing collected raw trace data
Dependency topic of Trace instance	vefaas_ark_ark-bot-procode-176**-function-dependency	The name of the log topic used to store topology data extracted and aggregated from Trace raw data.

2 Create a data backflow task

Select the region where log service is located from the top navigation bar.

In the left navigation bar, select Legacy log application > Trace storage.

Click Ark high-code application trace instance to go to the instance list page.

Click the corresponding Trace instance name to go to the Request list page.

Click Create logbackflow task. The data source will be automatically set to the data storage topic of the Trace instance. For other parameters, see Create data backflow task.

After configuring the parameters, click Create LogBackFlow Task.

Last updated: 2026.07.29 18:09:36