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  1. Concepts
  2. Instance groups
  3. Statuses

Statuses

  • Instance group status
  • Statuses of instances in the group
  • Lifecycle of instances in a group

This section lists possible instance group statuses and statuses of instances in groups.

Note

The statuses of instances in groups differ from the statuses of instances in Compute Cloud.

Instance group status

Status Description
STARTING The instance group is created or started.
Allowed actions with the instance group: stop, delete.
ACTIVE The instance group is running. For groups with this status, automatic recovery and automatic scaling are running, provided they were enabled in the settings.
Allowed actions with the group: update, stop, delete.
STOPPING Instances in the group are stopped.
Allowed actions with the group: start, update, delete.
Any significant changes to the group, such as re-sizing the group or re-configuring instances, are only applied after the group starts.
STOPPED All instances in the group are stopped.
Allowed actions with the group: start, update, delete.
Any significant changes to the group, such as re-sizing the group or re-configuring instances, are only applied after the group starts.
DELETING The instance group is deleted. First, the instances in the group are deleted, then the network load balancer target group is deleted (if specified). Finally, the instance group itself is deleted.
Allowed actions with the group: update, if you need to specify a new service account ID.

Statuses of instances in the group

Status Description
CREATING_INSTANCE An instance is created and started. Instance Groups waits until the instance in Compute Cloud changes its status to RUNNING.
AWAITING_STARTUP_DURATION The instance has been created and is waiting for the user application to start for the specified startup period. Network traffic is not sent to the instance. For automatic scaling, instances with this status are not taken into account.
CHECKING_HEALTH Instance Groups expects the results from the health check of the instance.
OPENING_TRAFFIC When the instance changes its state to condition HEALTHY, it's added to the network load balancer's target group. The instance is ready to receive network traffic from the load balancer.
AWAITING_WARMUP_DURATION The instance receives traffic, but no metrics for automatic scaling are read from it during the specified time interval.
RUNNING_ACTUAL The instance is running and receives network traffic. User applications are running.
RUNNING_OUTDATED The instance is running but will soon be updated or deleted.
CLOSING_TRAFFIC The instance is removed from the network load balancer's target group. Network traffic from the load balancer to the instance is stopped.
STOPPING_INSTANCE Instance is being stopped.
STOPPED The instance was stopped. You aren't charged for instances with this status.
STARTING_INSTANCE An instance is started. Instance Groups waits until the instance in Compute Cloud changes its status to RUNNING.
UPDATING_INSTANCE The basic parameters or metadata of the instance are being updated.
DELETING_INSTANCE The instance is being deleted.
PREPARING_RESOURCES The instance is being prepared for use with new instances. For example, renaming or changing disk volumes.
DELETED The instance was deleted. All the data and resources associated with this instance are saved for later use.

Lifecycle of instances in a group

The diagram shows how the instance status changes during the lifecycle:

  • dot-yellow: Instance Groups performs an action on the instance.
  • dot-green: The instance expects an action from Instance Groups.

In this article:
  • Instance group status
  • Statuses of instances in the group
  • Lifecycle of instances in a group
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