Question

我的ubuntu ami上安装了neo4j 2.1.8。这个版本的neo4j的问题在于它没有身份验证功能，并且某些查询（如DETACH）无法在此版本上运行。所以我决定升级我的neo4j但失败了。我遵循的步骤是：

停止正在运行的neo4j
wget http://neo4j.com/artifact.php?name=neo4j-community-2.3.1-unix.tar.gz
tar -xf artifact.php \？name \ = neo4j-community-2.3.1-unix.tar.gz
cd neo4j-community-2.3.1 /
sudo vim conf / neo4j.properties并设置Neo4j配置参数allow_store_upgrade = true
sudo vim conf / neo4j-server.properties并将数据库路径更改为旧数据库。
cd ../ bin
./ neo4j start

但不幸的是我遇到了以下错误

Component 'org.neo4j.server.database.LifecycleManagingDatabase@13401e7' was successfully initialized, but failed to start. Please see attached cause exception.
    at org.neo4j.server.exception.ServerStartupErrors.translateToServerStartupError(ServerStartupErrors.java:67)
    at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:234)
    at org.neo4j.server.Bootstrapper.start(Bootstrapper.java:97)
    at org.neo4j.server.CommunityBootstrapper.start(CommunityBootstrapper.java:48)
    at org.neo4j.server.CommunityBootstrapper.main(CommunityBootstrapper.java:35)

Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.server.database.LifecycleManagingDatabase@13401e7' was successfully initialized, but failed to start. Please see attached cause exception.
    at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:462)
    at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:111)
    at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:194)
    ... 3 more

Caused by: java.lang.RuntimeException: Error starting org.neo4j.kernel.impl.factory.CommunityFacadeFactory, /data-dir2/graph.db
    at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.newFacade(GraphDatabaseFacadeFactory.java:143)
    at org.neo4j.kernel.impl.factory.CommunityFacadeFactory.newFacade(CommunityFacadeFactory.java:43)
    at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.newFacade(GraphDatabaseFacadeFactory.java:108)
    at org.neo4j.server.CommunityNeoServer$1.newGraphDatabase(CommunityNeoServer.java:66)
    at org.neo4j.server.database.LifecycleManagingDatabase.start(LifecycleManagingDatabase.java:95)
    at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:452)
    ... 5 more

Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.NeoStoreDataSource@74c6dcaa' was successfully initialized, but failed to start. Please see attached cause exception.
    at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:462)
    at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:111)
    at org.neo4j.kernel.impl.transaction.state.DataSourceManager.start(DataSourceManager.java:112)
    at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:452)
    at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:111)
    at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.newFacade(GraphDatabaseFacadeFactory.java:139)
    ... 10 more

Caused by: org.neo4j.kernel.impl.storemigration.StoreUpgrader$UnexpectedUpgradingStoreVersionException: '/data-dir2/graph.db/neostore.nodestore.db' has a store version number that we cannot upgrade from. Expected 'v0.A.3' but file is version ''.
    at org.neo4j.kernel.impl.storemigration.UpgradableDatabase.checkUpgradeable(UpgradableDatabase.java:96)
    at org.neo4j.kernel.impl.storemigration.StoreUpgrader.migrateIfNeeded(StoreUpgrader.java:149)
    at org.neo4j.kernel.NeoStoreDataSource.upgradeStore(NeoStoreDataSource.java:636)
    at org.neo4j.kernel.NeoStoreDataSource.start(NeoStoreDataSource.java:527)
    at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:452)

如果验证也可以在此版本（2.1.8）中完成，那么告诉进程，我不必更新我的数据库。

Answer 1

我想我记得必须从2.1.x升级到2.2.x再升级到2.3.x. 2.1.x-> 2.3.x的直接升级路径不存在。

基本上，我在最新的2.2.x上设置allow_store_upgrade=true，通过启动服务器升级数据库，关闭，将升级后的数据库复制到2.3.x并重复该过程。

编辑：手册确实表明存在2.1.x的直接升级路径 - ＆gt; 2.3.x（http://neo4j.com/docs/stable/deployment-upgrading.html#explicit-upgrade）但这对我不起作用。

Answer 2

我也尝试从2.1.8升级到2.2.8但它也失败了。在Windows 2.1.8升级到2.3.2的工作完美。所以我从安装了neo4j 2.1.8的ubuntu服务器下载数据文件夹（通常是graph.db），然后用它替换windows neo4j（2.1.8）的数据文件夹。然后在成功升级后将其升级到2.3.2，制作一个zip文件夹并将其上传到我的ubuntu服务器。之后我在我的ubuntu服务器上安装了neo4j 2.3.2并编辑neo4j-server.properties来更改数据库路径。

如何将neo4j从2.1.8升级到2.3.1

2 个答案: