Online Help > Data Sources

Caching

Description

 

The caching mode will determine how the client will refresh the content of the data source when changes are detected. On large data sources caching is essential as it increases performance significantly.

 

This feature is only available when using an Advanced Data Source.

 

If the cache is outdated, press CTRL + Refresh or CTRL + F5 to refresh the local cache. This will force the application to retrieve the entire content of the data source to recreate the cache.

 

Settings

 

The Caching mode option can be access via the File – Data Sources – Edit Data Source – Advanced tab of an Advanced Data Source.

 

Caching Mode

Caching Mode

 

OPTION

DESCRIPTION

Disabled

No client caching.

Simple

Simple caching is the legacy caching mode. Performance may suffer when connected to data sources containing many sessions.

 

On a modification of data within a data source the server cache token is changed. When Remote Desktop Manager performs a refresh it will compare it's local cache token with the data source token. In the case where has changed the entire data source is reloaded.

Intelligent

Intelligent cache has the ability to handle many more sessions without experiencing performance degradation.

 

In the case of intelligent cache each modification performs a token update on the server. When Remote Desktop Manager performs a refresh action it will query the data source for any changes (delta) of changes to be applied client side since it last checked the data source. The delta of the changes is then sent to the application and applied locally.

 

When first opening the data source Remote Desktop Manager will loaded the session from the offline file then refresh to get the up-to date information.

 

Location

The client cache is persisted to disk in %LocalAppData%\Devolutions\RemoteDesktopManager\[GUID:DataSourceID]

 

There are three engines for the cache:

 

SQLite (offline.db)

MCDF (offline.mcdf)

MCDF v2.0 (offline.mcdf2)

 

If using a version of Remote Desktop Manager prior to 11.2, the default engine will be the SQLite, in that case the database is encrypted using a non-portable computed key hash.

 

If using version 11.2 or newer of Remote Desktop Manager the default cache engine will be the Microsoft Compound Document Format (MCDF) files.

 

You can enhance the security of the offline file by setting the Enhanced security in the options. See topic Offline Security

 

Depending on the configuration of the Caching Mode & the Offline Mode the offline file may still exist since the file servers as a dual purpose caching & offline line support.