How Facebook keeps 100 petabytes of Hadoop data online

AvatarNode isn’t a panacea for Hadoop availability, however. Ryan notes that only 10 percent of Facebook’s unplanned downtime would have been preventable with AvatarNode in place, but the architecture will allow Facebook to eliminate an estimated 50 percent of future planned downtime.

(Full Story: How Facebook keeps 100 petabytes of Hadoop data online)

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