Tair task center - Tair (Redis® OSS-Compatible) - Alibaba Cloud Documentation Center

When you create an instance, change the configurations of an instance, restart an instance, or upgrade the version of an instance, you can view the task progress and information on the Task Center page of the Tair (Redis OSS-compatible) console.

Procedure

Go to the Task Center page and select a region in the top navigation bar.
View task information.
You can filter tasks by task start time, keyword, or task status.

Supported task types

The following task types can be recorded in Task Center.

Cloud-native instances

Task	TaskType (API-returned state)	Description
Create Instance	CreateIns	N/A
Clear Data	FlushData	Clears all data.
Clear Expired Data	ClearExpiredData	Clears expired data from a standard instance.
Primary/Secondary Instance Switchover	HaSwitch	Performs a master-replica switchover on a standard instance.
Switch Over Cluster	ClusterHaSwitch	Performs a master-replica switchover on a cluster or read/write splitting instance. Note The feature to change the switching time for cluster switching tasks is currently being upgraded and is not yet available. If you want to perform a switchover immediately, Submit a ticket .
Restart Instance	RestartIns	Restarts an instance or updates the minor version of a cluster instance. Note The feature to change the switching time for restarting instances in a cluster with read/write splitting architecture is currently being upgraded and is not available. If you want to restart the instance immediately, Submit a ticket .
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 replicas to a read/write splitting instance.
Remove Node	DeleteInsNode	Removes data nodes from a cluster instance or removes read replicas from a read/write splitting instance.
Upgrade Minor Version	KernelVersionUpgrade	Updates the minor version of an instance.
Change Specifications or Migrate Data	ModifyInsSpec	Upgrades instance specifications, changes the instance architecture, adds or removes data nodes, or adds or removes read replicas. Migrates an instance across multiple zones, or changes a single-zone instance to a dual-zone instance. Upgrades the major version of an instance. Major versions of standard instances cannot be upgraded.

Note

When you manually restart a cloud-native instance, the restart of the master node may be interpreted by the high availability system as an abnormal event. As a result, a master-replica switchover is triggered. This task is categorized as Primary/Secondary Instance Switchover or Switch Over Cluster.
When you upgrade the version of a cloud-native instance, the upgrade is performed on the original host. If the original host does not have sufficient resources, the instance is migrated to a new host. Therefore, the upgrade task may be categorized as Change Specifications or Migrate Data.

Classic instances

Task	TaskType (API-returned state)	Description
Create Instance	CreateIns	N/A
Restart Instance	RestartIns	Restarts a standard instance.
Restart Proxy	RestartProxy	Restarts or rebuilds a proxy node.
Change Configuration	ModifyInsConfig	Switches between the standard architecture, the cluster architecture in proxy mode, and the read/write splitting architecture, or changes configurations across different architectures. Does not support configuration changes associated with Global Distributed Cache instances.
Change Network	ModifyNetwork	Modifies SSL configurations.
Add Shard	AddInsShards	Adds data shards to a cluster instance in direct connection mode. You cannot separately change instance specifications.
Remove Shard	DeleteInsShards	Removes data shards from a cluster instance in direct connection mode. You cannot separately change instance specifications.

Switching time description

If you create tasks that involve maintenance operations related to switching (such as configuration modification, version upgrade, or restarting):

Click Switch Now to switch the task after the preparation is complete.
Click Switch within Maintenance Window (Recommended) to complete the preparations first and then proceed with the switching during the designated maintenance window.
If you want to switch outside of the maintenance window or at a more specific time, wait until the task status changes to Pending Schedule. At the desired switching time, on the Task Center page, click Modify switching time in the Actions column to change the switching time to Switch Immediately.

FAQ

What do I do if I cannot click Modify switching time?

The task has no impact on the instance and does not require modification of the switching time.
The task is currently in the preparation phase for the switching (such as creating new instances and data migration, which may take anywhere from a few minutes to a few hours depending on the amount of data). After the preparation is complete, the task status is changed to Pending Schedule, at which point you can click Modify switching time.

The task remains in progress when the business operating smoothly and monitoring appears satisfactory. Why?

After the switching is complete, the instance is accessible. However, at that point, the task system performs finalization tasks (such as cleaning up the old instance). After these finalization tasks are completed, the task status is changed to Completed.

Related API operations

API operation	Description
DescribeHistoryTasks	Queries a list of tasks in the task center.