neo4j图数据库问题汇集

最新推荐文章于 2025-04-11 18:32:58 发布

junjunzai123

最新推荐文章于 2025-04-11 18:32:58 发布

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本文介绍了Neo4j启动过程中遇到的问题及解决方法，包括如何处理文件锁冲突、配置密码错误等问题，并提供详细的步骤指导。

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1. 问题如下:

解决方案：

1. 在对应的目录下/var/run 创建 neo4j文件夹，

2. 然后在cd /etc/neo4j目录下

3. 启动 neo4j start

2. 密码错误的解决方案:

1. 关闭neo4j服务器，然后在/etc/neo4j/neo4j.conf文件中打开这行的注释

2. 然后重启neo4j服务, neo4j start

3. 在浏览器中登陆。http://161.117.178.128:7474/browser/

4. 然后端口是bolt://161.117.178.128:7687 用户名xxxx. 密码：xxx

3. 问题如下:

ERROR Failed to start Neo4j: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@2205a05d' was successfully initialized, but failed to start. Please see the attached cause exception "Store and its lock file has been locked by another process: /var/lib/neo4j/data/databases/graph.db/store_lock. Please ensure no other process is using this database, and that the directory is writable (required even for read-only access)". Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@2205a05d' was successfully initialized, but failed to start. Please see the attached cause exception "Store and its lock file has been locked by another process: /var/lib/neo4j/data/databases/graph.db/store_lock. Please ensure no other process is using this database, and that the directory is writable (required even for read-only access)".
org.neo4j.server.ServerStartupException: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@2205a05d' was successfully initialized, but failed to start. Please see the attached cause exception "Store and its lock file has been locked by another process: /var/lib/neo4j/data/databases/graph.db/store_lock. Please ensure no other process is using this database, and that the directory is writable (required even for read-only access)"

解决方案:

1. cd /var/lib/neo4j/data/databases 这个文件夹下, 将grapd.db文件改名, 相当于删除此文件 .操作命令: mv grapd.db grapd.db1

2. 然后使用ps -axu | grep neo4j查询, 将相关的neo4j程序全部kill掉 kill -9 pid(查到的程序id)

3. 然后再cd /etc/neo4j下重新启动 neo4j start之后即可使用