# OptimizeVaultJob

Location: [gRPC API](https://developer.m-files.com/APIs/gRPC-API/index.md) > [Reference](https://developer.m-files.com/APIs/gRPC-API/Reference/index.md) > [Messages](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/index.md)

HTML version: https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.OptimizeVaultJob/

Struct for a vault optimization job.

- **Full name:** `MFiles.OptimizeVaultJob`
- **Proto file:** [`mfiles/structs.proto`](https://developer.m-files.com/APIs/gRPC-API/downloads/proto/mfiles/structs.proto)

<a id="fields"></a>

## Fields

| Field | Type | Number | Description |
|---|---|---|---|
| <a id="f-vault_guid"></a>`vault_guid` | `string` | 1 | The GUID of the vault. |
| <a id="f-flags"></a>`flags` | [`OPTIMIZEVAULTFLAGS`](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.OPTIMIZEVAULTFLAGS/index.md) | 2 | Flags that control the execution of this job. |
| <a id="f-auto_cancel_options"></a>`auto_cancel_options` | [`OptimizeVaultAutoCancelOptions`](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.OptimizeVaultAutoCancelOptions/index.md) | 3 | Auto-cancel options. |

<a id="used-by-methods"></a>

## Used by methods

- [IRPCVaultsAdmin.OptimizeVaultMetaDataDatabase](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCVaultsAdmin/OptimizeVaultMetaDataDatabase/index.md): Optimizes the metadata database of a vault.

<a id="used-in-fields"></a>

## Used in fields

- [`JobDataUnion.optimize_vault`](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.JobDataUnion/index.md#f-optimize_vault): Optimize the vault.
- [`OptimizeVaultMetaDataDatabaseRequest.optimize_vault_job`](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCVaultsAdmin/OptimizeVaultMetaDataDatabase/index.md#request): The optimization to run: the vault (`vault_guid`), quick or thorough (`flags.is_thorough`), whether to garbage-collect files of destroyed objects (`flags.garbage_collect_files`), and when to cancel automatically.