我昨天在Windows 7上安装了Neo4j社区版本.运行和使用它没有任何问题.今天我尝试再次启动服务器但收到以下错误消息:
启动Neo4j服务器失败:组件'org.neo4j.server.database.LifecycleManagingDatabase@76c898cd'已成功初始化,但无法启动.请参阅附件原因例外.
这就是我在数据库文件夹中的message.log文件中找到的内容
org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.api.impl.index.LuceneLabelScanStore@7ad7c442' failed to initialize. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:489) [neo4j-desktop-2.2.4.jar:2.2.4]
at org.neo4j.kernel.lifecycle.LifeSupport.init(LifeSupport.java:72) [neo4j-desktop-2.2.4.jar:2.2.4]
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:106) [neo4j-desktop-2.2.4.jar:2.2.4]
at org.neo4j.kernel.NeoStoreDataSource.start(NeoStoreDataSource.java:530) ~[neo4j-desktop-2.2.4.jar:2.2.4]
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:507) [neo4j-desktop-2.2.4.jar:2.2.4]
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:115) [neo4j-desktop-2.2.4.jar:2.2.4]
at org.neo4j.kernel.impl.transaction.state.DataSourceManager.start(DataSourceManager.java:117) [neo4j-desktop-2.2.4.jar:2.2.4]
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:507) [neo4j-desktop-2.2.4.jar:2.2.4]
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:115) [neo4j-desktop-2.2.4.jar:2.2.4]
at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:331) [neo4j-desktop-2.2.4.jar:2.2.4]
at org.neo4j.kernel.EmbeddedGraphDatabase.<init>(EmbeddedGraphDatabase.java:59) [neo4j-desktop-2.2.4.jar:2.2.4]
at org.neo4j.server.database.LifecycleManagingDatabase$1.newGraphDatabase(LifecycleManagingDatabase.java:44) [neo4j-desktop-2.2.4.jar:2.2.4]
at org.neo4j.server.database.LifecycleManagingDatabase.start(LifecycleManagingDatabase.java:110) [neo4j-desktop-2.2.4.jar:2.2.4]
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:507) [neo4j-desktop-2.2.4.jar:2.2.4]
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:115) [neo4j-desktop-2.2.4.jar:2.2.4]
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:203) [neo4j-desktop-2.2.4.jar:2.2.4]
at org.neo4j.desktop.runtime.DatabaseActions.start(DatabaseActions.java:71) [neo4j-desktop-2.2.4.jar:2.2.4]
at org.neo4j.desktop.ui.StartDatabaseActionListener$1.run(StartDatabaseActionListener.java:61) [neo4j-desktop-2.2.4.jar:2.2.4]
at java.awt.event.InvocationEvent.dispatch(Unknown Source) [na:1.7.0_65]
at java.awt.EventQueue.dispatchEventImpl(Unknown Source) [na:1.7.0_65]
at java.awt.EventQueue.access$200(Unknown Source) …如何在Tableau中生成伪随机数和行计数？我没有找到任何内置函数(如'RAND','RCOUNT').
我正在使用Google Maps API通过适用于Google Maps Web Services的Python客户端库在Google App Engine中设置项目
我尝试了以下示例代码:
import googlemaps
gmaps = googlemaps.Client(key='MY API KEY HERE')
geocode_result = gmaps.geocode('1600 Amphitheatre Parkway, Mountain View, CA')
是的,我确实把我的实际API密钥放在那里.事实上,它在Anaconda iPython控制台中运行良好,但在Google Apps Engine中,我得到:
文件"C:\ Users\Dan\Documents\Apps\oncourse\main.py",第31行
geocode_result = gmaps.geocode('1600 Amphitheatre Parkway,Mountain View,CA')
文件"C:\ Users\Dan\Documents\Apps\oncourse\lib\googlemaps\geocoding.py",第68行,地理编码
return client._get("/ maps/api/geocode/json",params)["results"]
文件"C:\ Users\Dan\Documents\Apps\oncourse\lib\googlemaps\client.py",第204行,在_get中
提高googlemaps.exceptions.TransportError(e)
TransportError :('连接已中止.',错误(13,'权限被拒绝'))
INFO 2015-11-22 20:14:23,002 module.py:794]默认值:"GET/HTTP/1.1"500 -
这个错误究竟意味着什么？
我想我没有正确设置所有库,
我的app.yaml文件包含
libraries:
- name: ssl
version: latest
我在我的应用程序的根目录中的lib文件夹中安装了googlemaps库.该gmaps=Client(key)实例化的工作(我通过输出gmaps.key测试过),所以我相信我有谷歌地图图书馆正确设置.