difference between checkpoint node and secondary namenode


Checkpoint Node in hadoop 1

Checkpoint Node Checkpoint node in hadoop is a new implementation of the Secondary NameNode to solve the drawbacks of Secondary NameNode. Main function of the Checkpoint Node in hadoop is to create periodic checkpoints of file system metadata by merging edits file with fsimage file. Usually the new fsimage from merge operation is called as a checkpoint. Checkpoint Node periodically downloads the fsimage and edits log files from primary NameNode and […]


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