nomad:tldr:ddd3d
The command "nomad node status" is used to check the status of all the registered nodes in a Nomad cluster. Nomad is a cluster manager and scheduler tool developed by HashiCorp, used for deploying and managing jobs and tasks across a cluster of machines.
When executing the "nomad node status" command, it queries the Nomad cluster to obtain the current status and information about each registered node. The output includes details such as the node ID, name, IP address, availability, version, and any additional metadata associated with the nodes.
The status information provides useful insights into the state of nodes in the cluster and can help with monitoring, troubleshooting, and capacity planning. It allows operators to verify if the nodes are healthy, available, and running the expected versions of Nomad.
Here's a breakdown of the possible states that might be displayed for each node:
- ready: The node is registered and ready to accept new jobs and tasks.
- down: The node is not responding or unavailable.
- draining: The node is being drained and no new tasks will be assigned to it.
- lost: The node lost network connectivity and couldn't be reached.
- initializing: The node is being initialized and not yet ready to receive tasks.
- decommissioning: The node is being decommissioned and will be removed from the cluster.
By running the "nomad node status" command, administrators or operators can quickly gain an overview of the cluster's node health and make informed decisions based on the provided status information.