January 07, 2013, 4:46 PM — OpenStack is the largest and most active open source cloud computing project, but interest in the platform has leveled off in the last quarter as momentum for competing project CloudStack continues to build.
Those are the findings of the latest report by a Chinese blogger who monitors the activity of open source cloud computing projects each month. Qingye (John) Jiang tracks four open source cloud computing projects in his blog using a Java program he created that pulls in records for every new discussion feed in the project's ecosystem, as well as on mailing lists and responses to comments.
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Eucalyptus and OpenNebula were the two original open source cloud platforms, which began before 2009. In 2010, both OpenStack and CloudStack started and in early 2012 CloudStack became a project independent from OpenStack.
During the past 18 months, OpenStack has garnered a lot of support, including from big-name vendors including Rackspace, Dell, HP, Cisco, VMware and Red Hat, among others. CloudStack, meanwhile, is backed largely by Citrix and other smaller players, while Eucalyptus is a privately held company that supports its own open source platform. OpenNebula is a fourth, smaller project.
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