Rakesh R created BOOKKEEPER-255:
-----------------------------------

             Summary: BKJM : Create BookKeeper parent nodes /ledgers/available 
znodes in ZK
                 Key: BOOKKEEPER-255
                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-255
             Project: Bookkeeper
          Issue Type: Improvement
          Components: bookkeeper-client
            Reporter: Rakesh R
            Assignee: Rakesh R


BKJM should pre-create the BookKeeper parent znodes if not exists.

bq. hadoop namenode -format

Namenode formatting has dependency with the BookKeeper client and is throwing 
the folowing exception.

{noformat}
12/05/10 16:41:57 ERROR namenode.NameNode: Exception in namenode join
java.lang.IllegalArgumentException: Unable to construct journal, 
bookkeeper://10.18.40.155:2183;10.18.40.155:2182;10.18.40.155:2181/NN
        at 
org.apache.hadoop.hdfs.server.namenode.FSEditLog.createJournal(FSEditLog.java:1226)
        at 
org.apache.hadoop.hdfs.server.namenode.FSEditLog.initJournals(FSEditLog.java:242)
        at 
org.apache.hadoop.hdfs.server.namenode.FSEditLog.initSharedJournalsForRead(FSEditLog.java:223)
        at 
org.apache.hadoop.hdfs.server.namenode.FSImage.<init>(FSImage.java:134)
        at 
org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:718)
        at 
org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1091)
        at 
org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1191)
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at 
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at 
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at 
org.apache.hadoop.hdfs.server.namenode.FSEditLog.createJournal(FSEditLog.java:1224)
        ... 6 more
Caused by: java.io.IOException: Error initializing zk
        at 
org.apache.hadoop.contrib.bkjournal.BookKeeperJournalManager.<init>(BookKeeperJournalManager.java:191)
        ... 11 more
Caused by: org.apache.zookeeper.KeeperException$NoNodeException: 
KeeperErrorCode = NoNode
        at org.apache.zookeeper.KeeperException.create(KeeperException.java:111)
        at 
org.apache.bookkeeper.client.BookieWatcher.readBookiesBlocking(BookieWatcher.java:140)
        at org.apache.bookkeeper.client.BookKeeper.<init>(BookKeeper.java:177)
        at org.apache.bookkeeper.client.BookKeeper.<init>(BookKeeper.java:147)
        at 
org.apache.hadoop.contrib.bkjournal.BookKeeperJournalManager.<init>(BookKeeperJournalManager.java:189)
        ... 11 more
{noformat}

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