无法在ubuntu虚拟机中启动Neo4j服务器
我只想在ubuntu虚拟机中使用Neo4j服务器，我安装了oracle Java，如下所示：无法在ubuntu虚拟机中启动Neo4j服务器,ubuntu,neo4j,Ubuntu,Neo4j,我只想在ubuntu虚拟机中使用Neo4j服务器，我安装了oracle Java，如下所示： java version "1.7.0_45" Java(TM) SE Runtime Environment (build 1.7.0_45-b18) Java HotSpot(TM) 64-Bit Server VM (build 24.45-b08, mixed mode) 然后，当我尝试启动Neo4j服务器时，会出现如下错误： WARNING: Max 1024 open files al
java version "1.7.0_45"
Java(TM) SE Runtime Environment (build 1.7.0_45-b18)
Java HotSpot(TM) 64-Bit Server VM (build 24.45-b08, mixed mode)
WARNING: Max 1024 open files allowed, minimum of 40 000 recommended. See the Neo4j manual.
Using additional JVM arguments: -server -XX:+DisableExplicitGC -Dorg.neo4j.server.properties=conf/neo4j-server.properties -Djava.util.logging.config.file=conf/logging.properties -Dlog4j.configuration=file:conf/log4j.properties -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled
Starting Neo4j Server...WARNING: not changing user process [3337]... waiting for server to be ready.................... Failed to start within 120 seconds.
Neo4j Server may have failed to start, please check the logs.
2013-12-13 11:40:41.736+0000 INFO [API] Setting startup timeout to: 120000ms based on -1
Detected incorrectly shut down database, performing recovery..
2013-12-13 11:40:55.719+0000 INFO [API] Successfully started database
2013-12-13 11:40:56.279+0000 DEBUG [API] Unable to open rrd store, attempting to recreate it
2013-12-13 11:40:56.287+0000 DEBUG [API] current RRDB is invalid, renamed it to /vagrant/neo4j-community-2.0.0/data/rrd-invalid-1386934856281
2013-12-13 11:40:56.377+0000 DEBUG [API] Unable to create new rrd store
2013-12-13 11:40:56.447+0000 DEBUG [API] org.neo4j.server.ServerStartupException: Starting Neo4j Server failed: java.io.IOException: Invalid argument
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:209) ~[neo4j-server-2.0.0.jar:2.0.0]
at org.neo4j.server.Bootstrapper.start(Bootstrapper.java:87) [neo4j-server-2.0.0.jar:2.0.0]
at org.neo4j.server.Bootstrapper.main(Bootstrapper.java:50) [neo4j-server-2.0.0.jar:2.0.0]
Caused by: java.lang.RuntimeException: java.io.IOException: Invalid argument
at org.neo4j.server.rrd.RrdFactory.createRrdb(RrdFactory.java:177) ~[neo4j-server-2.0.0.jar:2.0.0]
at org.neo4j.server.rrd.RrdFactory.recreateArchive(RrdFactory.java:235) ~[neo4j-server-2.0.0.jar:2.0.0]
at org.neo4j.server.rrd.RrdFactory.createRrdb(RrdFactory.java:156) ~[neo4j-server-2.0.0.jar:2.0.0]
at org.neo4j.server.rrd.RrdFactory.createRrdDbAndSampler(RrdFactory.java:84) ~[neo4j-server-2.0.0.jar:2.0.0]
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:161) ~[neo4j-server-2.0.0.jar:2.0.0]
... 2 common frames omitted
Caused by: java.io.IOException: Invalid argument
at sun.nio.ch.FileChannelImpl.map0(Native Method) ~[na:1.7.0_45]
at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:874) ~[na:1.7.0_45]
at org.rrd4j.core.RrdNioBackend.mapFile(RrdNioBackend.java:64) ~[rrd4j-2.0.7.jar:na]
at org.rrd4j.core.RrdNioBackend.setLength(RrdNioBackend.java:87) ~[rrd4j-2.0.7.jar:na]
at org.rrd4j.core.RrdDb.<init>(RrdDb.java:148) ~[rrd4j-2.0.7.jar:na]
at org.rrd4j.core.RrdDb.<init>(RrdDb.java:101) ~[rrd4j-2.0.7.jar:na]
at org.neo4j.server.rrd.RrdFactory.createRrdb(RrdFactory.java:172) ~[neo4j-server-2.0.0.jar:2.0.0]
... 6 common frames omitted
2013-12-13 11:40:56.453+0000 DEBUG [API] Failed to start Neo Server on port [7474]
2013-12-13 11:40:41.736+0000信息[API]基于-1将启动超时设置为：120000ms
检测到错误关闭数据库，正在执行恢复。。
2013-12-13 11:40:55.719+0000信息[API]已成功启动数据库
2013-12-13 11:40:56.279+0000调试[API]无法打开rrd存储，正在尝试重新创建它
2013-12-13 11:40:56.287+0000调试[API]当前RRDB无效，将其重命名为/vagrant/neo4j-community-2.0.0/data/rrd-invalid-1386934856281
2013-12-13 11:40:56.377+0000调试[API]无法创建新的rrd存储
2013-12-13 11:40:56.447+0000调试[API]org.neo4j.server.ServerStartupException:启动neo4j服务器失败：java.io.IOException:参数无效
在org.neo4j.server.AbstractNeoServer.start（AbstractNeoServer.java:209）~[neo4j-server-2.0.0.jar:2.0.0]
在org.neo4j.server.Bootstrapper.start（Bootstrapper.java:87）[neo4j-server-2.0.0.jar:2.0.0]
位于org.neo4j.server.Bootstrapper.main（Bootstrapper.java:50）[neo4j-server-2.0.0.jar:2.0.0]
原因：java.lang.RuntimeException:java.io.IOException:参数无效
在org.neo4j.server.rrd.RrdFactory.createRrdb（RrdFactory.java:177）~[neo4j-server-2.0.0.jar:2.0.0]
在org.neo4j.server.rrd.RrdFactory.recreateArchive（RrdFactory.java:235）~[neo4j-server-2.0.0.jar:2.0.0]
在org.neo4j.server.rrd.RrdFactory.createRrdb（RrdFactory.java:156）~[neo4j-server-2.0.0.jar:2.0.0]
在org.neo4j.server.rrd.RrdFactory.createRrdDbAndSampler（RrdFactory.java:84）~[neo4j-server-2.0.0.jar:2.0.0]
在org.neo4j.server.AbstractNeoServer.start（AbstractNeoServer.java:161）~[neo4j-server-2.0.0.jar:2.0.0]
... 省略了2个公共框架
原因：java.io.IOException:参数无效
在sun.nio.ch.FileChannelImpl.map0（本机方法）~[na:1.7.0_45]
在sun.nio.ch.FileChannelImpl.map（FileChannelImpl.java:874）~[na:1.7.0_45]
在org.rrd4j.core.RrdNioBackend.mapFile（RrdNioBackend.java:64）~[rrd4j-2.0.7.jar:na]
在org.rrd4j.core.RrdNioBackend.setLength（RrdNioBackend.java:87）~[rrd4j-2.0.7.jar:na]
在org.rrd4j.core.RrdDb.（RrdDb.java:148）~[rrd4j-2.0.7.jar:na]
在org.rrd4j.core.RrdDb.（RrdDb.java:101）~[rrd4j-2.0.7.jar:na]
在org.neo4j.server.rrd.RrdFactory.createRrdb（RrdFactory.java:172）~[neo4j-server-2.0.0.jar:2.0.0]
... 省略了6个公共框架
2013-12-13 11:40:56.453+0000调试[API]无法在端口[7474]上启动Neo服务器
我已经按照中的说明更改了限制，现在运行命令“ulimit-n”，它将显示40960，但当我启动neo4j服务时，它还显示警告“允许打开的文件最多1024个，建议至少40000个”，如果需要任何其他操作？Neo4j需要比大多数Linux发行版所施加的最大限制更多的打开文件。在
/etc/security/limits.confneo4j soft nofile 40000
neo4j hard nofile 40000
您还可以查看更多详细信息。非常感谢您的回答。我已经试过了，但它似乎有另一个问题，它只将ulimit更改为4096（实际上我设置了40000），当我尝试使用ssh连接到VM时，它总是有一条消息“-bash:ulimit:open files:cannot modify limit:Operation not allowed”，你能给我一些建议吗？那是虚拟服务器吗？有时他们不允许您修改系统参数，在这种情况下，我不能提出任何建议，我已经用FedoraLinux在我的个人桌面上成功地更改了这些参数。请尝试联系您的VPS提供商并寻求支持。请向我展示您的配置，其中包含关于rrd的字符串。@Eugeny抱歉，不确定您的意思是哪种配置，它是Neo4j中的配置文件？neo4j server.properties？是的，
neo4j server.properties