# 5.5.2. Nodes¶

Provides detailed information for each node in the cluster. On the left hand column, you can find a list of all nodes that are members of the cluster including ClusterControl node. If you added slaves to your cluster through ClusterControl, these will also be listed.

## 5.5.2.1. Nodes Monitoring¶

The node on the list will appear in red colour to indicate it is unhealthy. The tabs show performance and resource usage for a specific node. There are also database specific tabs depending on the type of database running on the host:

• Overview
• Provides a summary of host information and statisic histogram including CPU, disk, network and memory usage.
• Database node status indicator:
Status Description
OK Indicates the node is working fine.
WARNING Indicates the node is degraded and not performing as expected.
PROBLEMATIC Indicates the node is down or unreachable.
• Top
• Provides a snapshot view of processes running on the host, similar to top command in Linux.
• DB Performance
• Overview of chosen database performance counters shown in graph.

## 5.5.2.2. Nodes Management¶

The remove icon will only appear when you rollover the mouse pointer on the node icon in the left-hand column. This removes the database node from the cluster.

Note

You can monitor job’s progress at ClusterControl > Logs > Jobs.

These are specific functions available for PostgreSQL standalone and replication nodes:

• Shutdown Node
• Stops the database instance on this node. This is not a system shut down.
• Reboot Host
• Initiates a system reboot on this host.
• Start Node
• This option is only available if the node is down. It starts the database instance on this node.