The purpose of Grabbit is to provide a fast and reliable way of copying content from one Sling (specifically Adobe CQ/AEM) instance to another.

Existing solutions have been tried and found insufficient for very large data sets (GB-TB), especially over a network. CQ’s .zip packages are extremely space inefficient, causing a lot of extra I/O.vlt rcp and Mark Adamcin’srecap use essentially the same mechanism: WebDAV using XML, doing an HTTP handshake for every node and many sets of properties, which means that any latency whatsoever on the network hurts performance enormously.

Grabbit creates a stream of data usingGoogle’s Protocol Buffers aka "ProtoBuf". Protocol Buffers are an extremely efficient (in terms of CPU, memory and wire size) binary protocol that includes compression.

Moreover, by doing a continuous stream, we avoid the latency issues. Depending on the size and nature of the data, as well as network latency, we have so far seen speed improvements ranging from 2 to 10 times that of Recap/vlt.

• General Information

  • Releases

  • Installation & Version Support

• Using Grabbit

  • General Layout

  • Running

  • Monitoring / Validating the Content Sync

  • Cleaning Grabbit Job Repository

• Grabbit Development

  • Getting Started

  • Building from Source

  • Releasing A New Version

• Library Attribution

• License