Enterprise Class Performance, Scalability, Availability and Backup for Subversion

WANdisco has taken high availability and disaster recovery to the next level by offering Subversion Clustering. With Subversion Clustering, a Subversion server is no longer a single point of failure, or performance bottleneck. By combining WANdisco's unique replication technology and intelligent load balancing software, Subversion can be deployed in an active-active cluster that delivers optimum performance, scalability and availability, with built-in continuous hot backup. If servers go down, users won't notice and administrators won't have to do anything. Failover is immediate and transparent and recovery is automatic. Downtime and data loss are completely eliminated.

Where to Next:

Check out how Subversion Clustering stacks up against the competition, discover how to make Subversion agile, learn about Subversion Services, or get more information about pricing.

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Features

• Dynamically balances workload across Subversion servers at a single location over a LAN, or multiple locations over a WAN.
• All servers in a cluster are fully readable and writeable and always in sync, making the cluster appear to end users as a single Subversion server.
• Subversion Clustering has no single point of failure. There is no sharing of disk, CPU or memory between servers in a cluster. Even load balancers can be paired for redundancy using the resilient cluster option.
• Intelligent load balancing capabilities optimize performance for end users by taking each server's current load into account before routing requests, rather than relying on simplistic round-robin approaches.
• When a network or server outage takes place, failover is transparent and immediate and recovery is automatic. Users experience no downtime or data loss, and the risk of human error is eliminated.
• Automated failover and recovery capabilities can be used to take servers offline for maintenance without interrupting user access, making full 24-by-7 operation possible. When a server is brought back online after maintenance is complete, it resynchronizes automatically with the other servers in the cluster.
• Connection draining allows existing tasks to be completed, while blocking new user connections before a server is taken offline for maintenance.
• Hot deploy capability allows servers to be added to a cluster without any downtime.
• Subversion Clustering can be implemented stand-alone or in combination with Subversion MultiSite, and WANdisco's clustering and multi-site solutions for JIRA.

Subversion Clustering Optmizes Build Performance for Agile Development

Agile development is iterative and incremental, requiring continuous communication and continuous build integration. Subversion Clustering allows the build process to be offloaded from the Subversion server used by developers, significantly improving their productivity. At the same time, the latest changes from the development team are available on the other servers in the cluster where continuous builds are running.

A number of WANdisco's customers are implementing Subversion Clustering in combination with Subversion MultiSite to fully enable agile development in a distributed environment. This combination eliminates WAN latency for remote developers as well as the performance bottleneck of a single Subversion server at the largest development sites.

What is Subversion?

Subversion is an open source version control system that stores and tracks changes made to any type of electronic data, including source code files, web pages, documents, or images. Subversion has experienced a phenomenal adoption rate because it offers features that make it easier to use and more cost-effective than competing commercial solutions, as well as its widely used open source predecessor, CVS. Forrester Research recently recognized Subversion as the sole leader in the Standalone Software Configuration Management (SSCM) category in a side-by-side comparison that included the most popular commercial SCM solutions.

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