The System overview page shows the health of Snaplexes and their nodes at a glance. Nodes using more than 45 % of the available resources show at the top of the page. The graph bars and carets track average and maximum memory, CPU, and disk usage.

Open the System overview from the Infrastructure link in the navigation pane. The default view displays usage graphs for the Snaplex services and the nodes on which they run:

When the System overview page opens, it shows the Snaplex node graph view and the average percentage of memory, CPU, and disk use for the last 15 minutes. The total number of virtual CPUs (nodes running the Snaplex service) displays at the top left, along with the total amount of memory allocated.

You can change the view to include only Snaplexes with active nodes or only those with inactive nodes. The control plane considers nodes inactive after five minutes pass without receiving a heartbeat from them. Offline Snaplexes (those with no nodes) only show with All Snaplexes selected.

Nodes in maintenance mode have a Snaplex service running on them, but don't process requests. Nodes in maintenance mode show in the System overview, but without data.

Hover over a bar to view the actual, maximum, and average values for a node:

The following sections describe how to:

• View Snaplex details
• Restart Groundplex nodes
• View FeedMaster mean execution time for Ultra Tasks
• View offline nodes

View Snaplex details

From the Infrastructure System overview node graph or list view, click a Snaplex to open the details panel. Snaplex details include information on the Snaplex and its nodes:

In the details panel:

• Click a node to view its details.
• The Alerts tab shows node alerts such as failures to communicate with other nodes.
• The Activity logs tab reports Snaplex activities, such as when a node is added or removed.
• For self-managed Snaplexes, Org admins can click the gear icon to start or restart Snaplex nodes.

Restart Groundplex nodes

Org admins can restart self-managed Groundplex nodes from the System overview page.

To restart all Snaplex nodes:

1. In the Search toolbar, click List view.
2. Click Snaplex list.
3. Click the Snaplex to restart. The details panel opens.
4. Click the three dots.
5. Click Restart Snaplex.

To restart a single node:

1. In the Search toolbar, click List view.
2. Click Node list.
3. Click the node.
4. To the right of the Status column, click the gear icon.
5. Click Restart node.

View FeedMaster mean execution time for Ultra Tasks

FeedMaster node details include the mean execution time for the last 1000 requests handled by active Ultra Tasks. To view the execution time from Monitor, follow these steps:

1. From the Monitor navigation pane, select Infrastructure.
2. Click Node list.
3. Click the node on which the task is executing. The node details on the In progress requests tab include an Execution time column.

View offline nodes

Nodes in a Snaplex send a heartbeat every 20 seconds to the control plane to indicate they're active. Nodes that don't send a heartbeat for five minutes change color, which indicates no data has come from them. Nodes without a heartbeat disappear from the System overview after 15 minutes. Change the time period to view nodes that went offline. Offline nodes remain in the System overview for one week.