secondarynamenode

Runs an HDFS secondary NameNode.

The usage is as follows:

$ hdfs secondarynamenode [-checkpoint [force]] | [-format] | [-geteditsize]
Arguments

-checkpoint [force]

Checkpoints the secondary NameNode if EditLog size >= fs.checkpoint.size.
If -force is used, the checkpoint is irrespective of the EditLog size

-format

Formats the local storage during the startup

-geteditsize

Prints the number of uncheckpointed transactions on the NameNode

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