---
title: "Set-VBRMongoDBOplogProcessingOptions"
description: "This cmdlet modifies the parameters of existing oplog processing options for MongoDB Replica sets. Use this cmdlet and its parameters to update the oplog backup period, retention period and retention policy."
canonical: "https://helpcenter.veeam.com/docs/vbr/powershell/set-vbrmongodboplogprocessingoptions.html"
breadcrumb: "Veeam PowerShell Reference > Veeam PowerShell Reference > Veeam Plug-Ins for Enterprise Applications, MongoDB Backup and Epic EHR System Protection > Working with Managed Veeam Plug-Ins, MongoDB Backup and Epic EHR System Protection > Application Backup Policy Settings for MongoDB > Set-VBRMongoDBOplogProcessingOptions"
dateModified: "2026-08-20"
---

# Set-VBRMongoDBOplogProcessingOptions

## Short Description
Modifies operations log (oplog) processing options for MongoDB replica sets.

**Product Edition**: Standard, Enterprise, Enterprise Plus, Veeam Universal License

## Syntax
```
Set-VBRMongoDBOplogProcessingOptions -Options <VBRMongoDBOplogProcessingOptions> [-BackupObject <Object>]
 [-EnableOplogProcessing] [-OplogBackupPeriod <Int32>] [-OplogRetentionPolicy <VBRMongoDBOplogRetentionPolicy>]
 [-OplogRetentionPeriod <Int32>] [<CommonParameters>]
```

## Detailed Description
This cmdlet modifies the parameters of existing oplog processing options for MongoDB Replica sets. Use this cmdlet and its parameters to update the oplog backup period, retention period and retention policy.

## Parameters

<table style="width:100%;" class="Blue_Table">
      <tr style="vertical-align:top">
        <th style="width:20%;">
          <p>Parameter</p>
        </th>
        <th style="width:20%;">
          <p>Description</p>
        </th>
        <th style="width:20%;">
          <p>Type</p>
        </th>
        <th style="width:10%;">
          <p>Required</p>
        </th>
        <th style="width:10%;">
          <p>Position</p>
        </th>
        <th style="width:10%;">
          <p>Accept Pipeline Input</p>
        </th>
      </tr>
      <tr style="vertical-align:top">
        <td>
          <p class="Table_Text_Bold"><span class="Table_Text_Bold">BackupObject</span></p>
        </td>
        <td>
          <p>Specifies an array of MongoDB replica set and protection group objects. The cmdlet will add these entities to the application backup policy.</p><p>Accepts the <code>Object</code> object. To get this object, run the <a href="get-vbrdiscoveredapplication.md"><code>Get-VBRDiscoveredApplication</code></a> cmdlet.</p>
        </td>
        <td style="width:10%;">
          <p><code>Object</code></p>
        </td>
        <td style="width:10%;">
          <p>False</p>
        </td>
        <td style="width:10%;">
          <p>Named</p>
        </td>
        <td style="width:10%;">
          <p>True (ByPropertyName)</p>
        </td>
      </tr>
      <tr style="vertical-align:top">
        <td>
          <p class="Table_Text_Bold"><span class="Table_Text_Bold">EnableOplogProcessing</span></p>
        </td>
        <td>
          <p>Enables the processing of existing oplogs of MongoDB replica sets.</p>
        </td>
        <td style="width:10%;">
          <p><code>SwitchParameter</code></p>
        </td>
        <td style="width:10%;">
          <p>False</p>
        </td>
        <td style="width:10%;">
          <p>Named</p>
        </td>
        <td style="width:10%;">
          <p>True (ByPropertyName)</p>
        </td>
      </tr>
      <tr style="vertical-align:top">
        <td>
          <p class="Table_Text_Bold"><span class="Table_Text_Bold">OplogBackupPeriod</span></p>
        </td>
        <td>
          <p>Modifies the interval in minutes at which the system collects the oplog backup after an image-level backup operation.</p><p>Default: 15 minutes.</p>
        </td>
        <td style="width:10%;">
          <p><code>Int32</code></p>
        </td>
        <td style="width:10%;">
          <p>False</p>
        </td>
        <td style="width:10%;">
          <p>Named</p>
        </td>
        <td style="width:10%;">
          <p>True (ByPropertyName)</p>
        </td>
      </tr>
      <tr style="vertical-align:top">
        <td>
          <p class="Table_Text_Bold"><span class="Table_Text_Bold">OplogRetentionPeriod</span></p>
        </td>
        <td>
          <p>Modifies the retention period of the oplog in the backup repository in days.</p><p>Default: 15 days</p>
        </td>
        <td style="width:10%;">
          <p><code>Int32</code></p>
        </td>
        <td style="width:10%;">
          <p>False</p>
        </td>
        <td style="width:10%;">
          <p>Named</p>
        </td>
        <td style="width:10%;">
          <p>True (ByPropertyName)</p>
        </td>
      </tr>
      <tr style="vertical-align:top">
        <td>
          <p class="Table_Text_Bold"><span class="Table_Text_Bold">OplogRetentionPolicy</span></p>
        </td>
        <td>
          <p>Modifies the oplog retention policy settings:</p><ul><li><code>KeepLastDays</code>: Retains oplog backup for a specified number of days, regardless of the state of the related full backup.</li><li><code>KeepWithBackup</code>: Retains oplog backup simultaneously with the related full backup.</li></ul>
        </td>
        <td style="width:10%;">
          <p><code>VBRMongoDBOplogRetentionPolicy</code></p>
        </td>
        <td style="width:10%;">
          <p>False</p>
        </td>
        <td style="width:10%;">
          <p>Named</p>
        </td>
        <td style="width:10%;">
          <p>True (ByPropertyName)</p>
        </td>
      </tr>
      <tr style="vertical-align:top">
        <td>
          <p class="Table_Text_Bold"><span class="Table_Text_Bold">Options</span></p>
        </td>
        <td>
          <p>Specifies the existing processing options for oplogs of MongoDB replica sets.</p><p>Accepts the <a href="vbrmongodboplogprocessingoptions.md"><code>VBRMongoDBOplogProcessingOptions</code></a> object. To get this object, run the<a href="new-vbrmongodboplogprocessingoptions.md"><code> New-VBRMongoDBOplogProcessingOptions</code></a> cmdlet.</p>
        </td>
        <td style="width:10%;">
          <p><a href="vbrmongodboplogprocessingoptions.md"><code>VBRMongoDBOplogProcessingOptions</code></a></p>
        </td>
        <td style="width:10%;">
          <p>True</p>
        </td>
        <td style="width:10%;">
          <p>Named</p>
        </td>
        <td style="width:10%;">
          <p>True (ByPropertyName, ByValue)</p>
        </td>
      </tr>
    </table>

`<CommonParameters>`

This cmdlet supports Microsoft PowerShell common parameters. For more information on common parameters, see [ Microsoft Docs](https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_commonparameters?view=powershell-7).

## Output Object
The cmdlet returns the [`VBRMongoDBOplogProcessingOptions`](vbrmongodboplogprocessingoptions.md) object that configures processing settings for oplogs for MongoDB replica sets.

## Examples

::: example
### Change Existing Oplog Processing Options

This example shows how to change existing oplog processing and retention settings, and add them to an existing MongoDB oplog application backup policy.

```
$rs = Get-VBRDiscoveredApplication -MongoDBEntityType ReplicaSet
$oplogOptions = New-VBRMongoDBOplogProcessingOptions -BackupObject $rs[0] -EnableOplogProcessing
$newOplogOptions = Set-VBRMongoDBOplogProcessingOptions -Options $oplogOptions -BackupObject $rs[0] -OplogRetentionPolicy KeepLastDays -OplogRetentionPeriod 7
$backupRepo = Get-VBRBackupRepository
Add-VBRMongoDBBackupJob -Name ps_mongo_job -BackupObject $rs[0] -BackupRepository $backupRepo[0] -OplogProcessingOptions $newOplogOptions[0]
```

Perform the following steps:

1. Run the [`Get-VBRDiscoveredApplication`](get-vbrdiscoveredapplication.md) cmdlet to get the replica set. Specify the `MongoDBEntityType` parameter value. Save the result to the `$rs` variable.
2. Run the [`New-VBRMongoDBOplogProcessingOptions`](new-vbrmongodboplogprocessingoptions.md) cmdlet. Specify the `BackupObject` and `EnableOplogProcessing` parameter values. Save the result to the `$oplogOptions` variable.
3. Run the `Set-VBRMongoDBOplogProcessingOptions` cmdlet.

   - Specify the `Options` parameter value with the `$oplogOptions` variable.
   - Specify the `BackupObject` parameter value with the `$rs` variable.
   - Specify the `OplogRetentionPolicy` parameter value with the `KeepLastDays` variable.
   - Specify the `OplogRetentionPeriod` parameter value with the number of days of retention.
   - Save the result to the `$newOplogOptions` variable.

4. Run the [`Get-VBRBackupRepository`](get-vbrbackuprepository.md) cmdlet. Save the result to the `$backupRepo` variable.
5. Run the [`Add-VBRMongoDBBackupJob`](add-vbrmongodbbackupjob.md) cmdlet.

   - Specify the `Name` parameter value with the name of the backup job.
   - Specify the `BackupObject` parameter value with the `$rs` variable.
   - Specify the `BackupRepository` parameter value with the `$backupRepo` variable.
   - Specify the `OplogProcessingOptions` parameter value with the `$newOplogOptions` variable.

:::

## Related Commands

- [`Get-VBRDiscoveredApplication`](get-vbrdiscoveredapplication.md)
- [`New-VBRMongoDBOplogProcessingOptions`](new-vbrmongodboplogprocessingoptions.md)
- [`Get-VBRBackupRepository`](get-vbrbackuprepository.md)
- [`Add-VBRMongoDBBackupJob`](add-vbrmongodbbackupjob.md)