56 lines
1.3 KiB
Plaintext
56 lines
1.3 KiB
Plaintext
---
|
|
layout: "docs"
|
|
page_title: "Commands: node-drain"
|
|
sidebar_current: "docs-commands-node-drain"
|
|
description: >
|
|
Toggle drain mode for a given node.
|
|
---
|
|
|
|
# Command: node-drain
|
|
|
|
The `node-drain` command is used to toggle drain mode on a given node. Drain
|
|
mode prevents any new tasks from being allocated to the node, and begins
|
|
migrating all existing allocations away.
|
|
|
|
The [node-status](/docs/commands/node-status.html) command compliments this
|
|
nicely by providing the current drain status of a given node.
|
|
|
|
## Usage
|
|
|
|
```
|
|
nomad node-drain [options] <node>
|
|
```
|
|
|
|
A `-self` flag can be used to drain the local node. If this is not supplied, a
|
|
node ID or prefix must be provided. If there is an exact match, the drain mode
|
|
will be adjusted for that node. Otherwise, a list of matching nodes and
|
|
information will be displayed.
|
|
|
|
It is also required to pass one of `-enable` or `-disable`, depending on which
|
|
operation is desired.
|
|
|
|
## General Options
|
|
|
|
<%= general_options_usage %>
|
|
|
|
## Node Drain Options
|
|
|
|
* `-enable`: Enable node drain mode.
|
|
* `-disable`: Disable node drain mode.
|
|
* `-self`: Drain the local node.
|
|
* `-yes`: Automtic yes to prompts.
|
|
|
|
## Examples
|
|
|
|
Enable drain mode on node with ID prefix "4d2ba53b":
|
|
|
|
```
|
|
$ nomad node-drain -enable 4d2ba53b
|
|
```
|
|
|
|
Enable drain mode on the local node:
|
|
|
|
```
|
|
$ nomad node-drain -enable -self
|
|
```
|