GitHub - bloomberg/chef-bach: Chef recipes for Bloomberg's deployment of Hadoop and related componentsEach Hadoop head node is Hadoop component specific. The roles are intended to be run so that they can be layered in a highly-available manner. E.g. multiple BCPC-Hadoop-Head-* machines will correctly build a MySQL, Zookeeper, HDFS JournalNode, etc. cluster and deploy the named component as well. Further, for components which support HA, the intention is one can simply add the role to multiple mach
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