---
title: compact
---

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<a id="topic_2522766FD5DD45D991A523F84BD54920"></a>


Compact online and offline disk-stores.

-   **[compact disk-store](../../../tools_modules/gfsh/command-pages/compact.html#topic_F113C95C076F424E9AA8AC4F1F6324CC)**

    Compact a disk store on all members with that disk store.

-   **[compact offline-disk-store](../../../tools_modules/gfsh/command-pages/compact.html#topic_9CCFCB2FA2154E16BD775439C8ABC8FB)**

    Compact an offline disk store.

## <a id="topic_F113C95C076F424E9AA8AC4F1F6324CC" class="no-quick-link"></a>compact disk-store

Compact a disk store on all members with that disk store.

This command uses the compaction threshold that each member has configured for its disk stores. The disk store must have the `allow-force-compaction` property set to `true`.

See [Running Compaction on Disk Store Log Files](../../../managing/disk_storage/compacting_disk_stores.html) for more information.

**Availability:** Online. You must be connected in `gfsh` to a JMX Manager member to use this command.

**Syntax:**

``` pre
compact disk-store --name=value [--groups=value(,value)*]
```

**Parameters, compact disk-store**

| Name                                          | Description                                                                                                                  |
|-----------------------------------------------|------------------------------------------------------------------------------------------------------------------------------|
| <span class="keyword parmname">&#8209;&#8209;name</span>  | *Required.* Name of the disk store to be compacted.                                                                          |
| <span class="keyword parmname">&#8209;&#8209;groups</span> | Group(s) of members that perform disk compaction. If no group is specified, then the disk store is compacted by all members. |

**Example Commands:**

``` pre
compact disk-store --name=Disk1
compact disk-store --name=Disk1 --group=MemberGroup1,MemberGroup2
```

**Error Messages:**

``` pre
"Disk store \"{0}\" does not exist.";
 " for group(s) \"{0}\"";
"No members found in the specified group(s) \"{0}\".";
"Compaction was attempted but nothing to compact.";
"Error occurred while doing compaction. Reason: \"{0}\"";
```

## <a id="topic_9CCFCB2FA2154E16BD775439C8ABC8FB" class="no-quick-link"></a>compact offline-disk-store

Compact an offline disk store.

If the disk store is large, you may need to allocate additional memory to the process by using the `--J=-XmxNNNm` parameter.

See [Running Compaction on Disk Store Log Files](../../../managing/disk_storage/compacting_disk_stores.html) for more information.

**Note:**
Do not perform offline compaction on the baseline directory of an incremental backup.

**Availability:** Online or offline.

**Syntax:**

``` pre
compact offline-disk-store --name=value --disk-dirs=value(,value)* 
[--max-oplog-size=value] [--J=value(,value)*]
```

**Parameters, compact offline-disk-store**

| Name                                                   | Description                                                                                                                   | Default Value |
|--------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------|---------------|
| <span class="keyword parmname">&#8209;&#8209;name</span>           | *Required.* Name of the offline disk store to be compacted.                                                                   |               |
| <span class="keyword parmname">&#8209;&#8209;disk-dirs</span>      | *Required.* One or more directories where data for the disk store was previously written. Separate directories with commas.   |               |
| <span class="keyword parmname">&#8209;&#8209;max-oplog-size</span> | Maximum size (in megabytes) of the oplogs created by compaction.                                                              | -1            |
| <span class="keyword parmname">&#8209;&#8209;J</span>              | Arguments passed to the Java Virtual Machine performing the compact operation on the disk store. For example: `--J=-Xmx1024m`. |               |

**Example Commands:**

``` pre
compact offline-disk-store --name=Disk2 --disk-dirs=/Disks/Disk2
compact offline-disk-store --name=Disk2 --disk-dirs=/Disks/Disk2 --max-oplog-size=512 --J=-Xmx1024m
```


