Monitor a scale group

A scale group’s list row and tabs tell you what it is doing. The list shows its status and node count. Active Node Details and Terminated Node Details show its nodes, and Monitoring shows each node’s graphs. Audit Logs shows each scaling step, and Activity Timeline shows who changed what.

Before you begin

• You have a scale group.
• For the node tabs, the scale group reads Running, Scaling, or Cooldown.
• For Monitoring, it reads Running or Scaling.

Audit Logs and Activity Timeline are available in every state.

Read the scale group’s status

In MyAccount, under Compute, click Auto Scaling. Manage Auto Scaling lists each scale group with its Status and its Active Node Count, the number of nodes it runs. The Status shows the state when the page loaded. While a scale group reads Creating, Deploying Nets, Scaling, Starting, or Stopping, the list refreshes itself every five seconds. At other times, click refresh to see the latest state.

Status	What it means	What you can do from Manage
Creating	The scale group is being created	None yet; wait for the next state
Deploying Nets	A short, normal step at creation	None yet; wait for the next state
Running	The scale group runs its nodes, and you can edit its settings	Resize Service, Stop, and Delete
Scaling	The scale group is adding or removing nodes	None yet; wait for the next state
Cooldown	The normal wait after each scaling action, for the scale group’s Cooldown(s) seconds	None yet; wait for the next state
Stopping or Starting	The scale group is stopping or starting after Stop or Start	None yet; wait for the next state
Stopped	The scale group has no nodes and keeps its settings	Start and Delete
Warning	A node has a problem, such as being powered off from outside the scale group	None; it clears once the node runs again
Failed Scaling	A scaling action failed	None; wait, or contact support
Failed	Creating the scale group failed	Resize Service and Delete
Failed Deleting	Deleting the scale group failed	Resize Service and Delete

For a scale group that stays in one state, see The scale group shows Failed Scaling, The scale group shows Warning, and The scale group stays on Creating. If Delete is refused, see Sorry, an unexpected error occurred while retrieving your Scale group information.

To find a scale group among many, tag your scale groups and filter the list by tag. Search scaling group searches only the rows on the current page.

See the nodes

Click the scale group in the list to open its tabs. While the scale group reads Running, Scaling, or Cooldown:

• Active Node Details lists each node in the scale group with its Scale Node Name, Public IP (N/A when it has none), Private IP, and Status. If the scale group has no nodes, it says Currently no Scale Group Nodes are available.
• Terminated Node Details lists the nodes the scale group has removed, with Scale Node Name, Created At, Terminated At, Public IP, and Usage, which shows how long each node ran in days, hours, and minutes.

While the scale group reads Running, Resize Service is also on Active Node Details; see Resize the scale group. To sign in to a node, see Sign in to scale group nodes.

Watch a node’s graphs

1. While the scale group reads Running or Scaling, open its Monitoring tab. It lists the nodes with their Name, Public IP, Private IP, and Status.
2. Pick a node.
3. Choose a period: Last Hour, Last 6 Hours, Last 12 Hours, Last 24 Hours, or Last 1 Week.

The tab shows the node’s graphs of RAM, Storage, CPU Load, CPU Utilization, Disk Read Operation, Disk Write Operation, and Network Traffic over that period. The graphs plot one point every three minutes, with times in India Standard Time (IST). The CPU Utilization graph comes from a monitoring agent inside the node. The elastic policy checks a separate reading taken from outside it, so the two can show different figures at the same moment.

Read the audit logs

Open the Audit Logs tab. It shows the scale group’s scaling log. Each entry has a Log Created at time, in India Standard Time (IST), and a State, the message recorded at that step. Scaling by the elastic or scheduled policy appears here, for example Role web scaling up from 2 to 3 nodes followed by New state: SCALING, and Role web scaling down from 3 to 2 nodes.

Review the activity timeline

Open the Activity Timeline tab, and in Select Month, choose a month. The tab lists each action taken through the portal or the API that month, with its time, its details, who did it and from which IP, and whether it ended in Success or Failure. You will see these actions:

• LAUNCH, UPDATE_POLICY, RESIZE, STOP, START, and TERMINATE for the scale group itself.
• ATTACH_SG and DETACH_SG for security groups.
• ATTACH_VPC, DETACH_VPC, ATTACH_PUBLIC_IP, and DETACH_PUBLIC_IP for the network.

The timeline’s times are in UTC, five and a half hours behind the IST times on Audit Logs. Scaling done by a policy is recorded on Audit Logs instead.

You can now follow the scale group’s status, its nodes, and each scaling step. To read the same information from a script, see the as-list, as-active-nodes, and as-attached-lb operations in the API reference. If the scale group scales differently from what you expect, see Troubleshooting Auto Scaling.