THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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This will configure the namenode with 1 local edits dir and 1 bookkeeper edits dir. The BookKeeperJournalManager connects to localhost:2181 as the ZooKeeper server. Note that this will not start the namenode is in high availability mode, but BookKeeperJournalManager can similarly be used as a shared edits dir in HA.
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