47 lines
1.3 KiB
Plaintext
47 lines
1.3 KiB
Plaintext
---
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layout: docs
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page_title: 'Commands: system gc'
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description: |
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Run the system garbage collection process.
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---
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# Command: system gc
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Initializes a garbage collection of jobs, evaluations, allocations, and nodes.
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This is an asynchronous operation.
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Nomad periodically garbage collects jobs, evaluations, allocations, and nodes.
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The exact garbage collection logic varies by object, but in general Nomad only
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permanently deletes objects once they are terminal and no longer needed for
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future scheduling decisions. See [`gc` related server agent configuration
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parameters][gc_params] for details on tuning periodic garbage collection.
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[gc_params]: /docs/configuration/server#node_gc_threshold
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The `system gc` command bypasses these settings and immediately attempts to
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garbage collect dead objects regardless of any "threshold" or "interval" server
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settings. This is useful to quickly free memory on servers running low, but
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users should prefer tuning periodic garbage collection parameters to meet their
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needs instead of relying on manually running `system gc`.
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## Usage
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```plaintext
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nomad system gc [options]
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```
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If ACLs are enabled, this option requires a management token.
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## General Options
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@include 'general_options_no_namespace.mdx'
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## Examples
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Running the system gc command does not output unless an error occurs:
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```shell-session
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$ nomad system gc
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```
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