如何将 neo4j 从 2.1.8 升级到 2.3.1答案

【问题标题】：How to upgrade neo4j from 2.1.8 to 2.3.1如何将 neo4j 从 2.1.8 升级到 2.3.1
【发布时间】：2016-01-18 05:08:43
【问题描述】：

我的 ubuntu ami 上安装了 neo4j 2.1.8。这个版本的 neo4j 的问题是它没有身份验证功能，并且像 DETACH 这样的一些查询不能在这个版本上运行。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 开始

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)

如果在这个版本（2.1.8）中也可以进行身份验证，那么告诉过程，我不必更新我的数据库。

【问题讨论】：

标签： ubuntu neo4j

【解决方案1】：

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

所以基本上，我在最新的 2.2.x 上设置了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：手册确实表明存在从 2.1.x -> 2.3.x (http://neo4j.com/docs/stable/deployment-upgrading.html#explicit-upgrade) 的直接升级路径，但这对我不起作用。

【讨论】：

在 windows 中我直接从 2.1.8 升级到 2.3.1 但在 ubuntu 中我遇到了问题。
原来我可以根据手册neo4j.com/docs/stable/… 直接升级，但我不能（在 Mac OSX 上）。可能和你有同样的问题，抱歉我帮不上忙

【解决方案2】：

我也尝试从 2.1.8 升级到 2.2.8，但它也失败了。在 Windows 中，从 2.1.8 升级到 2.3.2 可以完美运行。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。升级成功后将其升级到 2.3.2 压缩数据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 以更改数据库路径。

【讨论】：