Tair Task Center-Tair (Redis® OSS-Compatible)(Tair)-阿里云帮助中心

Procedure

Go to the Task Center page and select a region at the top.
View task information.

You can filter tasks by start time, status, or keyword. On the Task Center page, you can use the time filter (1 hour, 1 day, 7 days, or 30 days) or search by Task ID to locate a specific task. The status bar at the top of the page shows the number of tasks in each status: Succeeded, Failed, Intervention Required, Pending, Running, Terminating, Terminated, and Pending Schedule. The task list below includes the Task ID, Task Type, Resource Type, Resource ID, Task Status, Task Progress, Start Time, End Time, and Actions columns. The Actions column provides options such as Details, Modify Switching Time, and Retry.

Supported task types

The Task Center tracks the following types of tasks.

Cloud-native edition

Task name	Task type	Description
Create instance	`CreateIns`	N/A
Clear data	`FlushData`	Clears all data from the instance.
Accelerated eviction	`ClearExpiredData`	Clears expired data from a standard-architecture instance.
master-replica switchover	`HaSwitch`	Performs a master-replica switchover on a standard-architecture instance.
cluster switchover	`ClusterHaSwitch`	Performs a master-replica switchover on a cluster or read/write splitting architecture instance. Note Modifying the switchover time for cluster switchover tasks is temporarily unavailable. To switch over immediately, submit a ticket for assistance.
Restart instance	`RestartIns`	Restarts an instance or performs a minor version upgrade on a cluster-architecture instance. Note Modifying the switchover time for restarting cluster or read/write splitting architecture instances is temporarily unavailable. To restart immediately, submit a ticket for assistance.
Restart proxy	`RestartProxy`	Restarts or rebuilds a proxy node.
Add shard	`AddInsShards`	Adds data shards to a cluster instance.
Remove shard	`DeleteInsShards`	Removes data shards from a cluster instance.
Add node	`AddInsNode`	Adds data nodes to a cluster instance or adds read-only nodes to a read/write splitting architecture instance.
Remove node	`DeleteInsNode`	Removes data nodes from a cluster instance or removes read-only nodes from a read/write splitting architecture instance.
minor version upgrade	`KernelVersionUpgrade`	Performs a minor version upgrade for an instance.
Change specifications or migrate	`ModifyInsSpec`	Upgrades instance specifications, changes the instance architecture, or adds or removes data nodes or read-only nodes. Migrates an instance to a different availability zone or changes a single-zone instance to a dual-zone instance. Performs a major version upgrade. This is not supported for standard-architecture instances.

Note

When you manually restart the master node of a cloud-native edition instance, the high-availability system may interpret the restart as a failure and trigger a master-replica switchover. As a result, the operation is logged as a master-replica switchover or cluster switchover task.
When you upgrade a cloud-native edition instance, the system first attempts an in-place upgrade. If the host lacks sufficient resources, the instance is migrated to a new host. In this case, the upgrade is logged as a Change specifications or migrate task.

Classic edition

Task name	Task type	Description
Create instance	`CreateIns`	N/A
Restart instance	`RestartIns`	Supported only for standard-architecture instances.
Restart proxy	`RestartProxy`	Restarts or rebuilds a proxy node.
Change configuration	`ModifyInsConfig`	Performs a configuration change between standard, cluster (proxy mode), and read/write splitting architectures, including cross-architecture changes. Configuration changes for Global Distributed Cache instances are not supported.
Change network	`ModifyNetwork`	Modifies the SSL configuration.
Add shard	`AddInsShards`	Adds data shards to a cluster-architecture instance in direct connection mode. This operation does not support changing instance specifications independently.
Remove shard	`DeleteInsShards`	Removes data shards from a cluster-architecture instance in direct connection mode. This operation does not support changing instance specifications independently.

Switchover time

When you create a maintenance task that involves a switchover (such as changing a configuration, upgrading a version, or restarting an instance), you can choose when the switchover occurs:

Select Switch Now to start the switchover immediately after the preparation work is complete.
Select Switch Within Maintenance Window (Recommended). The system first completes preparations and then performs the switchover during your specified maintenance window.

If you need to switch at a different time, wait for the task status to change to Pending Schedule. Then, click Modify Switching Time in the Actions column and select Switch Immediately.

FAQ

Why is the "Modify Switching Time" button unavailable?

The task does not affect the instance, so modifying the switchover time is unnecessary.
The task is in its preparation phase (for example, creating a new instance or migrating data). This phase can take from minutes to hours, depending on the data size. After preparation is complete, the task status changes to Pending Schedule, and the button becomes available.

Why is a task still "Running" even though my service and monitoring appear normal?

After a switchover, your instance becomes accessible. However, the task system continues to perform background cleanup operations, such as removing the old instance. The task is marked as complete only after these operations finish.

Related APIs

API	Description
DescribeHistoryTasks	Queries the list of tasks in the Task Center.