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| title: Executions environment variables |
| description: Environment variables to configure settings related to workflow executions. |
| contentType: reference |
| tags: |
| - environment variables |
| hide: |
| - toc |
| - tags |
| --- |
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| # Executions environment variables |
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| --8<-- "_snippets/self-hosting/file-based-configuration.md" |
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| This page lists environment variables to configure workflow execution settings. |
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| | Variable | Type | Default | Description | |
| | :------- | :---- | :------- | :---------- | |
| | `EXECUTIONS_MODE` | Enum string: `regular`, `queue` | `regular` | Whether executions should run directly or using queue.<br><br>Refer to [Queue mode](/hosting/scaling/queue-mode.md) for more details. | |
| | `EXECUTIONS_TIMEOUT` | Number | `-1` | Sets a default timeout (in seconds) to all workflows after which n8n stops their execution. Users can override this for individual workflows up to the duration set in `EXECUTIONS_TIMEOUT_MAX`. Set `EXECUTIONS_TIMEOUT` to `-1` to disable. | |
| | `EXECUTIONS_TIMEOUT_MAX` | Number | `3600` | The maximum execution time (in seconds) that users can set for an individual workflow. | |
| | `EXECUTIONS_DATA_SAVE_ON_ERROR` | Enum string: `all`, `none` | `all` | Whether n8n saves execution data on error. | |
| | `EXECUTIONS_DATA_SAVE_ON_SUCCESS` | Enum string: `all`, `none` | `all` | Whether n8n saves execution data on success. | |
| | `EXECUTIONS_DATA_SAVE_ON_PROGRESS` | Boolean | `false` | Whether to save progress for each node executed (true) or not (false). | |
| | `EXECUTIONS_DATA_SAVE_MANUAL_EXECUTIONS` | Boolean | `true` | Whether to save data of executions when started manually. | |
| | `EXECUTIONS_DATA_PRUNE` | Boolean | `true` | Whether to delete data of past executions on a rolling basis. | |
| | `EXECUTIONS_DATA_MAX_AGE` | Number | `336` | The execution age (in hours) before it's deleted. | |
| | `EXECUTIONS_DATA_PRUNE_MAX_COUNT` | Number | `10000` | Maximum number of executions to keep in the database. 0 = no limit | |
| | `EXECUTIONS_DATA_HARD_DELETE_BUFFER` | Number | `1` | How old (hours) the finished execution data has to be to get hard-deleted. By default, this buffer excludes recent executions as the user may need them while building a workflow. | |
| | `EXECUTIONS_DATA_PRUNE_HARD_DELETE_INTERVAL` | Number | `15` | How often (minutes) execution data should be hard-deleted. | |
| | `EXECUTIONS_DATA_PRUNE_SOFT_DELETE_INTERVAL` | Number | `60` | How often (minutes) execution data should be soft-deleted. | |
| | `N8N_CONCURRENCY_PRODUCTION_LIMIT` | Number | `-1` | Max production executions allowed to run concurrently, in both regular and scaling modes. `-1` to disable in regular mode. | |
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