如何修复 java RuntimeException：找不到资源“solrconfig.xml”在类路径中？
我在 CentOS 中将 Solr 设置为 Tomcat 服务时遇到问题。我正在使用 solr 3.3.0，它应该与从 cPanel 安装的 Tomcat 5.5 一起使用。我得到的错误是：
在类路径或“/home/sampleuser/public_html/apache-solr/example/solr/./conf/”中找不到资源“solrconfig.xml”，cwd=/usr/local/jakarta/apache-tomcat -5.5.33/bin
我看到其他人也有类似的问题。我用谷歌搜索并尝试应用所有的方法。然而到目前为止，没有什么对我有用。
我执行了以下操作：
- 将
solr.war复制到tomcat/webapps - 重新启动 Tomcat 服务
编辑
/usr/local/jakarta/tomcat/webapps/solr/ WEB-INF/web.xml为：; solr/home ;/home/sampleuser/public_html/apache-solr/example/solr ;java.lang.String ;创建
solr.xml 在/usr/local/jakarta/tomcat/conf/Catalina/localhost中为：<环境名称=“solr/home”类型=“java.lang.String” value="/home/sampleuser/public_html/apache-solr/example"override="true"/>/> 编辑了tomcat启动脚本在
etc/init.d（不确定我是否必须这样做）：
export JAVA_OPTS="$JAVA_OPTS -Dsolr.solr.home=/home/sampleuser/public_html/apache-solr/example/solr"
下面是来自 catalina.err 的完整错误日志：
Oct 9, 2011 7:35:06 PM org.apache.catalina.core.StandardService stop
INFO: Stopping service Catalina
Oct 9, 2011 7:35:06 PM org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextDestroyed()
Oct 9, 2011 7:35:06 PM org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextDestroyed()
Oct 9, 2011 7:35:06 PM org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextDestroyed()
Oct 9, 2011 7:35:06 PM org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextDestroyed()
Oct 9, 2011 7:35:06 PM org.apache.coyote.http11.Http11BaseProtocol destroy
INFO: Stopping Coyote HTTP/1.1 on http-8080
Oct 9, 2011 7:35:21 PM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/local/jdk/jre/lib/amd64/server:/usr/local/jdk/jre/lib/amd64:/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
Oct 9, 2011 7:35:23 PM org.apache.coyote.http11.Http11BaseProtocol init
INFO: Initializing Coyote HTTP/1.1 on http-8080
Oct 9, 2011 7:35:23 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 2875 ms
Oct 9, 2011 7:35:23 PM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Oct 9, 2011 7:35:23 PM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/5.5.33
Oct 9, 2011 7:35:23 PM org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
Oct 9, 2011 7:35:24 PM org.apache.catalina.startup.HostConfig deployDescriptor
WARNING: A docBase /usr/local/jakarta/tomcat/webapps/solr.war inside the host appBase has been specified, and will be ignored
Oct 9, 2011 7:35:25 PM org.apache.solr.core.SolrResourceLoader locateSolrHome
INFO: Using JNDI solr.home: /home/sampleuser/public_html/apache-solr/example/solr
Oct 9, 2011 7:35:25 PM org.apache.solr.core.SolrResourceLoader <init>
INFO: Solr home set to '/home/sampleuser/public_html/apache-solr/example/solr/'
Oct 9, 2011 7:35:25 PM org.apache.solr.servlet.SolrDispatchFilter init
INFO: SolrDispatchFilter.init()
Oct 9, 2011 7:35:25 PM org.apache.solr.core.SolrResourceLoader locateSolrHome
INFO: Using JNDI solr.home: /home/sampleuser/public_html/apache-solr/example/solr
Oct 9, 2011 7:35:25 PM org.apache.solr.core.CoreContainer$Initializer initialize
INFO: looking for solr.xml: /home/sampleuser/public_html/apache-solr/example/solr/solr.xml
Oct 9, 2011 7:35:25 PM org.apache.solr.core.SolrResourceLoader locateSolrHome
INFO: Using JNDI solr.home: /home/sampleuser/public_html/apache-solr/example/solr
Oct 9, 2011 7:35:25 PM org.apache.solr.core.CoreContainer <init>
INFO: New CoreContainer: solrHome=/home/sampleuser/public_html/apache-solr/example/solr/ instance=1537767228
Oct 9, 2011 7:35:25 PM org.apache.solr.core.SolrResourceLoader <init>
INFO: Solr home set to '/home/sampleuser/public_html/apache-solr/example/solr/'
Oct 9, 2011 7:35:26 PM org.apache.solr.core.SolrResourceLoader <init>
INFO: Solr home set to '/home/sampleuser/public_html/apache-solr/example/solr/./'
Oct 9, 2011 7:35:26 PM org.apache.solr.common.SolrException log
SEVERE: java.lang.RuntimeException: Can't find resource 'solrconfig.xml' in classpath or '/home/sampleuser/public_html/apache-solr/example/solr/./conf/', cwd=/usr/local/jakarta/apache-tomcat-5.5.33/bin
at org.apache.solr.core.SolrResourceLoader.openResource(SolrResourceLoader.java:268)
at org.apache.solr.core.SolrResourceLoader.openConfig(SolrResourceLoader.java:234)
at org.apache.solr.core.Config.<init>(Config.java:141)
at org.apache.solr.core.SolrConfig.<init>(SolrConfig.java:131)
at org.apache.solr.core.CoreContainer.create(CoreContainer.java:435)
at org.apache.solr.core.CoreContainer.load(CoreContainer.java:316)
at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:133)
at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:94)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:221)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:302)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:78)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3666)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4258)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:760)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:740)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:544)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:634)
at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:561)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:496)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1203)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:319)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:120)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1022)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:448)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.commons.daemon.support.DaemonLoader.start(DaemonLoader.java:219)
Oct 9, 2011 7:35:26 PM org.apache.solr.servlet.SolrDispatchFilter init
INFO: user.dir=/usr/local/jakarta/apache-tomcat-5.5.33/bin
Oct 9, 2011 7:35:26 PM org.apache.solr.servlet.SolrDispatchFilter init
INFO: SolrDispatchFilter.init() done
Oct 9, 2011 7:35:26 PM org.apache.solr.servlet.SolrServlet init
INFO: SolrServlet.init()
Oct 9, 2011 7:35:26 PM org.apache.solr.core.SolrResourceLoader locateSolrHome
INFO: Using JNDI solr.home: /home/sampleuser/public_html/apache-solr/example/solr
Oct 9, 2011 7:35:26 PM org.apache.solr.servlet.SolrServlet init
INFO: SolrServlet.init() done
Oct 9, 2011 7:35:26 PM org.apache.solr.core.SolrResourceLoader locateSolrHome
INFO: Using JNDI solr.home: /home/sampleuser/public_html/apache-solr/example/solr
Oct 9, 2011 7:35:26 PM org.apache.solr.servlet.SolrUpdateServlet init
INFO: SolrUpdateServlet.init() done
当我通过 shell 复制丢失的路径我能够很好地导航。似乎 Tomcat 无法找到 solrconfig.xml 。
I'm having issues setting up Solr as Tomcat service in CentOS. I’m using solr 3.3.0 which should be working with Tomcat 5.5 installed from cPanel. The error I was getting is:
Can't find resource 'solrconfig.xml' in classpath or '/home/sampleuser/public_html/apache-solr/example/solr/./conf/', cwd=/usr/local/jakarta/apache-tomcat-5.5.33/bin
I saw other people having similar issues. I googled and tried to apply all of the approaches. However nothing worked for me so far.
I did the following:
- Copied
solr.wartotomcat/webapps - Restarted Tomcat Service
Edited
/usr/local/jakarta/tomcat/webapps/solr/WEB-INF/web.xmlas:<env-entry> <env-entry-name>solr/home</env-entry-name> <env-entry-value>/home/sampleuser/public_html/apache-solr/example/solr</env-entry-value> <env-entry-type>java.lang.String</env-entry-type> </env-entry>Created
solr.xmlin/usr/local/jakarta/tomcat/conf/Catalina/localhostas:<?xml version="1.0" encoding="utf-8"?> <Context docBase="/usr/local/jakarta/tomcat/webapps/solr.war" debug="0" crossContext="true"> <Environment name="solr/home" type="java.lang.String" value="/home/sampleuser/public_html/apache-solr/example"override="true"/> </Context>Edited tomcat startup script at
etc/init.d(not sure if I had to do it at all) with:
export JAVA_OPTS="$JAVA_OPTS -Dsolr.solr.home=/home/sampleuser/public_html/apache-solr/example/solr"
Below is the complete error log from catalina.err:
Oct 9, 2011 7:35:06 PM org.apache.catalina.core.StandardService stop
INFO: Stopping service Catalina
Oct 9, 2011 7:35:06 PM org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextDestroyed()
Oct 9, 2011 7:35:06 PM org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextDestroyed()
Oct 9, 2011 7:35:06 PM org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextDestroyed()
Oct 9, 2011 7:35:06 PM org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextDestroyed()
Oct 9, 2011 7:35:06 PM org.apache.coyote.http11.Http11BaseProtocol destroy
INFO: Stopping Coyote HTTP/1.1 on http-8080
Oct 9, 2011 7:35:21 PM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/local/jdk/jre/lib/amd64/server:/usr/local/jdk/jre/lib/amd64:/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
Oct 9, 2011 7:35:23 PM org.apache.coyote.http11.Http11BaseProtocol init
INFO: Initializing Coyote HTTP/1.1 on http-8080
Oct 9, 2011 7:35:23 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 2875 ms
Oct 9, 2011 7:35:23 PM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Oct 9, 2011 7:35:23 PM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/5.5.33
Oct 9, 2011 7:35:23 PM org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
Oct 9, 2011 7:35:24 PM org.apache.catalina.startup.HostConfig deployDescriptor
WARNING: A docBase /usr/local/jakarta/tomcat/webapps/solr.war inside the host appBase has been specified, and will be ignored
Oct 9, 2011 7:35:25 PM org.apache.solr.core.SolrResourceLoader locateSolrHome
INFO: Using JNDI solr.home: /home/sampleuser/public_html/apache-solr/example/solr
Oct 9, 2011 7:35:25 PM org.apache.solr.core.SolrResourceLoader <init>
INFO: Solr home set to '/home/sampleuser/public_html/apache-solr/example/solr/'
Oct 9, 2011 7:35:25 PM org.apache.solr.servlet.SolrDispatchFilter init
INFO: SolrDispatchFilter.init()
Oct 9, 2011 7:35:25 PM org.apache.solr.core.SolrResourceLoader locateSolrHome
INFO: Using JNDI solr.home: /home/sampleuser/public_html/apache-solr/example/solr
Oct 9, 2011 7:35:25 PM org.apache.solr.core.CoreContainer$Initializer initialize
INFO: looking for solr.xml: /home/sampleuser/public_html/apache-solr/example/solr/solr.xml
Oct 9, 2011 7:35:25 PM org.apache.solr.core.SolrResourceLoader locateSolrHome
INFO: Using JNDI solr.home: /home/sampleuser/public_html/apache-solr/example/solr
Oct 9, 2011 7:35:25 PM org.apache.solr.core.CoreContainer <init>
INFO: New CoreContainer: solrHome=/home/sampleuser/public_html/apache-solr/example/solr/ instance=1537767228
Oct 9, 2011 7:35:25 PM org.apache.solr.core.SolrResourceLoader <init>
INFO: Solr home set to '/home/sampleuser/public_html/apache-solr/example/solr/'
Oct 9, 2011 7:35:26 PM org.apache.solr.core.SolrResourceLoader <init>
INFO: Solr home set to '/home/sampleuser/public_html/apache-solr/example/solr/./'
Oct 9, 2011 7:35:26 PM org.apache.solr.common.SolrException log
SEVERE: java.lang.RuntimeException: Can't find resource 'solrconfig.xml' in classpath or '/home/sampleuser/public_html/apache-solr/example/solr/./conf/', cwd=/usr/local/jakarta/apache-tomcat-5.5.33/bin
at org.apache.solr.core.SolrResourceLoader.openResource(SolrResourceLoader.java:268)
at org.apache.solr.core.SolrResourceLoader.openConfig(SolrResourceLoader.java:234)
at org.apache.solr.core.Config.<init>(Config.java:141)
at org.apache.solr.core.SolrConfig.<init>(SolrConfig.java:131)
at org.apache.solr.core.CoreContainer.create(CoreContainer.java:435)
at org.apache.solr.core.CoreContainer.load(CoreContainer.java:316)
at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:133)
at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:94)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:221)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:302)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:78)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3666)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4258)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:760)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:740)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:544)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:634)
at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:561)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:496)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1203)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:319)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:120)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1022)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:448)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.commons.daemon.support.DaemonLoader.start(DaemonLoader.java:219)
Oct 9, 2011 7:35:26 PM org.apache.solr.servlet.SolrDispatchFilter init
INFO: user.dir=/usr/local/jakarta/apache-tomcat-5.5.33/bin
Oct 9, 2011 7:35:26 PM org.apache.solr.servlet.SolrDispatchFilter init
INFO: SolrDispatchFilter.init() done
Oct 9, 2011 7:35:26 PM org.apache.solr.servlet.SolrServlet init
INFO: SolrServlet.init()
Oct 9, 2011 7:35:26 PM org.apache.solr.core.SolrResourceLoader locateSolrHome
INFO: Using JNDI solr.home: /home/sampleuser/public_html/apache-solr/example/solr
Oct 9, 2011 7:35:26 PM org.apache.solr.servlet.SolrServlet init
INFO: SolrServlet.init() done
Oct 9, 2011 7:35:26 PM org.apache.solr.core.SolrResourceLoader locateSolrHome
INFO: Using JNDI solr.home: /home/sampleuser/public_html/apache-solr/example/solr
Oct 9, 2011 7:35:26 PM org.apache.solr.servlet.SolrUpdateServlet init
INFO: SolrUpdateServlet.init() done
When I copy the missing path via shell I was able to navigate just fine. Seem like Tomcat cannot locate the solrconfig.xml.
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评论（1）
首先：您不需要 #3 和 #4 和 5. #3 不是强烈推荐，除非您明确自定义 solr.war。 #4 和 #5 是做同一件事的两种不同方法 - 使用对您来说最方便的一种（JNDI 与系统属性）
第二：请注意，虽然 #3 和 #5 是一致的，但在 #4 中您实际上指定了一个不同的 Solr 主目录（您真正想要的父目录）
第三：我认为问题的关键是文件权限。
由于 SOLR-3264 这会导致每个核心的“instanceDirs”被错误地称为“Solr Home”，但似乎发生的情况是它无法找到（或读取）您的“/home/sampleuser/public_html/apache-solr/example/solr/solr.xml”，因此它将进入传统的“单核”模式，其中假设您希望使用 Solr Home 目录作为（单个）的实例目录Solr Core——然后它会查找“/home/sampleuser/public_html/apache-solr/example/solr/solrconf.xml”，如果找不到（或读取）它给出的文件 向上。
因此，根据您主要关心的是您是否确实有一个 solr.xml （指向备用实例目录），它没有找到，或者如果您实际上有一个 solrconfig.xml 文件，请检查这些文件的文件权限（以及它们的目录），并确保 Tomcat 服务器的有效用户可以读取它们。
（FWIW：Solr 3.6 及更高版本将具有 更好的日志记录找不到 solr.xml，使用旧模式，并且我已打开 SOLR-3266 寻求更好的日志/错误方法将来无法读取文件）
First off: you don't need to #3 and #4 and 5. #3 isn't really recommended unless you are explicitly customizing the solr.war. #4 and #5 are two different ways to do the same thing - use whichever one is most convenient for you (JNDI vs system properties)
Second: please note that while #3 and #5 are consistent, in #4 you actually specify a different Solr home dir (the parent dir of what you really want)
Third: I think the crux of your problem is file permissions.
The logging is a bit confusing due to SOLR-3264 which causes "instanceDirs" for each core to be refered to erroneously as "Solr Home" but what seems to be happening is that it can't find (or read) your "/home/sampleuser/public_html/apache-solr/example/solr/solr.xml" so it's going into legacy "Single Core" mode where it assumes that you want to use your Solr Home dir as an instanceDir for a (single) Solr Core -- so it then looks for "/home/sampleuser/public_html/apache-solr/example/solr/solrconf.xml" and if it can't find (or read) that file it gives up.
So depending on whether your main concern is that you actually have a solr.xml (pointing to alternate instanceDirs) hat it's not finding, or if you actually have a solrconfig.xml file where it's looking, check the file permissions of those files (and their directories), and make sure they are readable by the effective user of your tomcat server.
(FWIW: Solr 3.6 and up will have better logging when solr.xml is not found and legacy mode is used, and I've opened SOLR-3266 to pursue better ways of logging/erroring on unreadable files in the future)