The BookKeeper journal manager is an implementation of the HDFS JournalManager interface. The JournalManager interface allows you to plug custom write ahead logging into the HDFS NameNode.

Setting up the BookKeeper Journal Manager

http://zookeeper.apache.org/bookkeeper/docs/r4.0.0/bookkeeperConfig.html covers the step necessary to set up a BookKeeper cluster. We recommend that you use at least 3 servers to ensure fault tolerance.

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The web interface should now be available at http://localhost:50070/.

Benchmarks

We ran benchmarks on a cluster of machines with:

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