Checkpoint Node in Hadoop

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What is the role of checkpoint node in Hadoop?
Jul 31, 2018 in Big Data Hadoop by Data_Nerd
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Checkpoint Node keeps track of the latest checkpoint in a directory that has same structure as that of NameNode’s directory. Checkpoint node creates checkpoints for the namespace at regular intervals by downloading the edits and fsimage file from the NameNode and merging it locally. The new image is then again updated back to the active NameNode.
answered Jul 31, 2018 by kurt_cobain
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