WANdisco’s Distributed Data Replication Approach to Hadoop’s Single Point of Failure

by   |   February 6, 2013 3:26 pm   |   0 Comments

Facebook, Amazon and Twitter may rely on Hadoop for processing data but despite their legions of genius engineers, not one of these tech titans can guarantee Hadoop’s fail-safe performance.

That’s because Hadoop’s Distributed File System (HDFS) metadata service, NameNode, contains an inherent weakness so that when one NameNode in a cluster goes down, the entire cluster fails, blocking access to mission-critical applications. It’s a single point of failure (SPOF) dilemma that’s prompting some companies to hesitate before jumping on the Hadoop bandwagon.

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