FAQ
Untangle depencencies between NN components
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Key: HDFS-2223
URL: https://issues.apache.org/jira/browse/HDFS-2223
Project: Hadoop HDFS
Issue Type: Improvement
Components: name-node
Affects Versions: 0.23.0
Reporter: Todd Lipcon
Assignee: Todd Lipcon


Working in the NN a lot for HA (HDFS-1623) I've come across a number of situations where the tangled dependencies between NN components has been problematic for adding new features and for testability. It would be good to untangle some of these and clarify what the distinction is between the different components: NameNode, FSNamesystem, FSDirectory, FSImage, NNStorage, and FSEditLog

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postedAug 3, '11 at 9:11p
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