Namespace not registered yet prevent BundleDbPersistenceManager to detect 
already existing root node and leads to workspace initialization failure in a 
cluster environment
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------

                 Key: JCR-1558
                 URL: https://issues.apache.org/jira/browse/JCR-1558
             Project: Jackrabbit
          Issue Type: Bug
          Components: clustering, jackrabbit-core
    Affects Versions: core 1.4.3
         Environment: Jackrabbit 1.4.2 / Jackrabbit core 1.4.3
MySqlPersistenceManager in clustering with two nodes and MySQL 
5.0.45-Debian_1ubuntu3.3-log / InnoDB tables
            Reporter: Sébastien Launay


I have two nodes in my cluster.

When the first node starts for the first time, it creates the root node and
register a custom namespace (rev 1) and custom node types (rev 2).
Then it adds a child using the namespace declared before.
Everything works fine as long as i have only one node.

But when the second node starts for the first time, it try first to check if a 
root node already exists (SharedItemStateManager constructor) :
  // create root node state if it doesn't yet exist
  if (!hasNonVirtualItemState(rootNodeId)) {
    createRootNodeState(rootNodeId, ntReg);
  }

But, the call to hasNonVirtualItemState(rootNodeId) will log an non fatal error 
but return false:
ERROR [BundleDbPersistenceManager] failed to read bundle: 
cafebabe-cafe-babe-cafe-babecafebabe: java.lang.IllegalStateException: URIIndex 
not valid? javax.jcr.NamespaceException: URI for index 11 not registered.

The reason is because MySqlPersistenceManager#loadBundle(NodeId id, boolean 
checkBeforeLoading) will retrieve
the root node and its first level children:
BundleBinding#readBundle(DataInputStream in, NodeId id)
...
 bundle.addChildNodeEntry(readQName(in), childId)  // will fails the second time

Indeed this child name uses the custom namespace (index 11) not registered
because the ClusterNode which consumes journal records is not yet started.

And so on it will create the root node and will fail because the root node 
already exists:
ERROR [BundleDbPersistenceManager] failed to write bundle: 
deadbeef-cafe-babe-cafe-babecafebabe
com.mysql.jdbc.exceptions.MySQLIntegrityConstraintViolationException: Duplicate 
entry 'Þ­¾ïÊþº¾Êþº¾Êþº¾' for key 1
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1011)
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3491)
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3423)
        at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1936)
        at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2060)
        at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2542)
        at 
com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1734)
        at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:995)
        at 
org.apache.jackrabbit.core.persistence.bundle.util.ConnectionRecoveryManager.executeStmtInternal(ConnectionRecoveryManager.java:365)
        at 
org.apache.jackrabbit.core.persistence.bundle.util.ConnectionRecoveryManager.executeStmtInternal(ConnectionRecoveryManager.java:292)
        at 
org.apache.jackrabbit.core.persistence.bundle.util.ConnectionRecoveryManager.executeStmt(ConnectionRecoveryManager.java:257)
        at 
org.apache.jackrabbit.core.persistence.bundle.util.ConnectionRecoveryManager.executeStmt(ConnectionRecoveryManager.java:237)
        at 
org.apache.jackrabbit.core.persistence.bundle.BundleDbPersistenceManager.storeBundle(BundleDbPersistenceManager.java:1270)
        at 
org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.putBundle(AbstractBundlePersistenceManager.java:703)
        at 
org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.store(AbstractBundlePersistenceManager.java:643)
        at 
org.apache.jackrabbit.core.persistence.bundle.BundleDbPersistenceManager.store(BundleDbPersistenceManager.java:529)
        at 
org.apache.jackrabbit.core.state.SharedItemStateManager.createRootNodeState(SharedItemStateManager.java:1084)
        at 
org.apache.jackrabbit.core.state.SharedItemStateManager.<init>(SharedItemStateManager.java:194)
        at 
org.apache.jackrabbit.core.RepositoryImpl.createItemStateManager(RepositoryImpl.java:1201)
        at 
org.apache.jackrabbit.core.RepositoryImpl$WorkspaceInfo.doInitialize(RepositoryImpl.java:1753)
        at 
org.apache.jackrabbit.core.RepositoryImpl$WorkspaceInfo.initialize(RepositoryImpl.java:1724)
        at 
org.apache.jackrabbit.core.RepositoryImpl.initWorkspace(RepositoryImpl.java:576)
        at 
org.apache.jackrabbit.core.RepositoryImpl.initStartupWorkspaces(RepositoryImpl.java:415)
        at 
org.apache.jackrabbit.core.RepositoryImpl.<init>(RepositoryImpl.java:305)
        at 
org.apache.jackrabbit.core.RepositoryImpl.create(RepositoryImpl.java:557)
        at 
org.apache.jackrabbit.core.TransientRepository$2.getRepository(TransientRepository.java:245)
        at 
org.apache.jackrabbit.core.TransientRepository.startRepository(TransientRepository.java:265)
        at 
org.apache.jackrabbit.core.TransientRepository.login(TransientRepository.java:333)
        at 
org.apache.jackrabbit.core.TransientRepository.login(TransientRepository.java:363)

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