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Built on WANdisco's patented replication technology, the Non-Stop NameNode is the first and only 100% uptime solution for Hadoop that eliminates the most problematic single point of failure impacting availability — the NameNode — which tracks the location of data within a Hadoop cluster and coordinates client access to it.

The Non-Stop NameNode enables multiple active NameNode servers to act as peers, continuously synchronized and simultaneously supporting client access for batch applications using MapReduce, as well as real-time applications using HBase. When one NameNode server fails, others take over automatically without any downtime. These capabilities enable the Non-Stop NameNode to deliver 100% uptime with unmatched scalability and performance.

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Key Features

• Provides 100% Hadoop Uptime – all NameNode Servers actively support clients and continuously synchronize. Failover and recovery are immediate and automatic without any downtime.
• Completely Eliminates Data Loss – Provides continuous hot backup by default and eliminates the risk of administrator error during failover and recovery.
• Unlimited Performance and Scalability – Removes the performance bottleneck of a single active NameNode server, allowing the NameNode to scale as workload increases without sacrificing performance.
• Enables Globally distributed Hadoop Deployments – Delivers the same capabilities over a LAN or a WAN, regardless of distance. Enterprises can design disaster recovery strategies that meet their business continuity plans globally.
• Provides full support for HBase.

Professional Hadoop Support

WANdisco also provides enterprise-class professional support for organizations deploying Hadoop. More than a first line of defense, WANdisco’s team consists of Hadoop committers who have been involved in the project since its inception and have the authority to make changes to the code base ensuring the fastest delivery of fixes and enhancements. Service options include 24/7 online, phone and email support, guaranteed response times, online delivery of fixes and upgrades, Hadoop Cluster Health Check, 8 Hours of Free Consulting or Training, Indemnification coverage and more. For more information, see: www.wandisco.com/support/hadoop.