Change tracking delivers real-time incremental data from Lindorm, letting you monitor data changes.
To enable change tracking, purchase the required nodes in the Lindorm console. The exact steps depend on your instance version:
| Instance version | Required purchases | Order |
|---|---|---|
| Lindorm New Version | Message engine nodes + Lindorm Tunnel Service (LTS) nodes | Purchase in this order |
| Lindorm | Stream data nodes + LTS nodes | Purchase in this order |
If you have already purchased one of these node types, skip the corresponding step.
Prerequisites
Before you begin, ensure that you have:
LindormTable enabled on your instance
Enable change tracking on Lindorm New Version
Purchase message engine nodes
If the message engine is already enabled on your instance, skip this step.
Log on to the Lindorm console.
In the upper-left corner, select the region where your instance is deployed.
On the Instances page, click the instance ID, or click View Instance Details in the Actions column.
In the navigation pane, click LindormMessage.
ImportantIf LindormMessage does not appear in the navigation pane, contact Lindorm technical support on DingTalk (ID: s0s3eg3).
On the LindormMessage page, click Activate Now.
On the Change Specification page, configure the following parameters.
Parameter Description Message Engine Node Type The node type for the message engine. Options include General-purpose, Memory-optimized, and Compute-optimized. Message Engine Node Specifications The specifications for each message engine node. Message Engine Node Number The number of message engine nodes. Storage Capacity The total storage capacity for the message engine. Click Buy Now.
Purchase LTS nodes
If LTS is already purchased for your instance, skip this step.
Log on to the Lindorm console.
In the upper-left corner, select the region where your instance is deployed.
On the Instances page, click the instance ID, or click View Instance Details in the Actions column.
In the navigation pane, click Wide Table Engine, then click the Change Tracking tab.
ImportantIf the Change Tracking tab does not appear, contact Lindorm technical support on DingTalk (ID: s0s3eg3).
On the Change Tracking page, click Activate Now.
On the Change Specification page, configure the following parameters.
Parameter Description LTS Data Synchronization Core Specifications The core specifications for LTS data synchronization. LTS Node Quantity The number of LTS nodes. Click Buy Now.
Enable change tracking on Lindorm
Purchase stream data nodes
If the stream engine is already enabled on your instance, skip this step.
Log on to the Lindorm console.
In the upper-left corner, select the region where your instance is deployed.
On the Instances page, click the instance ID, or click View Instance Details in the Actions column.
In the navigation pane, click Wide Table Engine, then click the Change Tracking tab.
ImportantIf the Change Tracking tab does not appear, contact Lindorm technical support on DingTalk (ID: s0s3eg3).
On the Change Tracking page, click Activate Now.
On the Change Specification page, configure the following parameters. For guidance on selecting node specifications and the number of nodes, see Select node specifications and quantity.
Parameter Description Stream Data Node Specifications The specifications for each stream engine node. Stream Data Node Number The number of stream engine nodes. Storage Space The total storage capacity for the stream engine. Click Buy Now.
Purchase LTS nodes
If LTS is already purchased for your instance, skip this step.
Log on to the Lindorm console.
In the upper-left corner, select the region where your instance is deployed.
On the Instances page, click the instance ID, or click View Instance Details in the Actions column.
In the navigation pane, click Wide Table Engine, then click the Change Tracking tab.
ImportantIf the Change Tracking tab does not appear, contact Lindorm technical support on DingTalk (ID: s0s3eg3).
On the Change Tracking page, click Activate Now.
On the Change Specification page, configure the following parameters.
Parameter Description LTS Data Synchronization Core Specifications The core specifications for LTS data synchronization. LTS Node Quantity The number of LTS nodes. Click Buy Now.
What's next
After purchasing the required nodes, manage change tracking in the LTS console. Log on to LTS to create a channel and start consuming incremental data. For details, see Purchase and log on to LTS.