You can enable the change tracking feature to obtain the real-time incremental data of your Lindorm instances. You can enable the change tracking feature in the Lindorm console and consume the incremental data based on your requirements in different scenarios. This topic describes how to enable the change tracking feature in the Lindorm console.
Prerequisites
LindormTable is activated for the Lindorm instance.
Procedure
To enable change tracking for an instance, you must purchase streaming engine nodes and LTS nodes for the instance in the console.
Purchase Lindorm streaming engine nodes
If the Lindorm streaming engine is activated for your Lindorm instance, you can skip this step.
Log on to the Lindorm console.
In the upper-left corner of the page, select the region where the instance is deployed.
On the Instances page, click the ID of the instance that you want to manage or click Manage in the Actions column corresponding to the instance.
In the left-side navigation pane, click Wide Table Engine.
In the left-side navigation pane, click the Change Tracking tab.
ImportantIf the Change Tracking tab is not displayed in the console, contact the technical support (DingTalk ID: s0s3eg3).
On the Change Tracking tab, click Activate Now.
On the Upgrade/Downgrade page, configure the following two parameters:
Specifications of Streaming Data Nodes: Select the specification for the nodes of the Lindorm streaming engine.
Number of Streaming Data Nodes: Specify the number of Lindorm steaming engine nodes.
Storage Space: Select the storage capacity of Lindorm streaming engine nodes.
For more information about how to select the specification and number of nodes on which LTS is deployed, see Select configurations for a Lindorm instance.
Read and select Terms of Service.
Click Buy Now.
Purchase LTS nodes
If the LTS is activated for your Lindorm instance, you can skip this step.
Log on to the Lindorm console.
In the upper-left corner of the page, select the region where the instance is deployed.
On the Instances page, click the ID of the instance that you want to manage or click Manage in the Actions column corresponding to the instance.
In the left-side navigation pane, click Wide Table Engine.
In the left-side navigation pane, click the Change Tracking tab.
ImportantIf the Change Tracking tab is not displayed in the console, contact the technical support (DingTalk ID: s0s3eg3).
On the Change Tracking tab, click Activate Now.
On the Upgrade/Downgrade page, configure the following two parameters:
LTS Core Node Specification: Select the specification for the core nodes on which LTS is deployed.
Number of LTS Nodes: Specify the number of LTS nodes.
Read and select Terms of Service.
Click Buy Now.
Related operations
Operations related to the change tracking feature are performed on the LTS console. Therefore, you must log on to the LTS console before you create a channel for change tracking. For more information, see Log on to the web UI of LTS.