java - 卸载 Core 并尝试重新创建它后出现 Apache Solr "HTTP ERROR 503"

Question

我正在研究如何使用 Solr 查询一些 XML 文件，因此我更改了位于 collection1 目录下的 schema.xml 文件。

然后我启动了一个查询，我知道它应该返回 1 个结果，但没有成功。

所以我想我可能必须重新加载核心(这个想法取自 CoreAdmin -Solr Wiki )。所以我做到了，但由于某种原因我没能做到。也就是说，我决定重新启动服务(sorl/example java -jar start.jar)，现在我收到此错误:

HTTP ERROR 503

Problem accessing /solr/. Reason:

    Server is shutting down or failed to initialize

Powered by Jetty://

这是命令提示符输出，显示服务器正在运行？

0    [main] INFO  org.eclipse.jetty.server.Server  û jetty-8.1.10.v20130312
75   [main] INFO  org.eclipse.jetty.deploy.providers.ScanningAppProvider  û Depl
oyment monitor C:\Users\kapel_000\Desktop\solr-4.10.2\example\contexts at interv
al 0
83   [main] INFO  org.eclipse.jetty.deploy.DeploymentManager  û Deployable added
: C:\Users\kapel_000\Desktop\solr-4.10.2\example\contexts\solr-jetty-context.xml

1916 [main] INFO  org.eclipse.jetty.webapp.StandardDescriptorProcessor  û NO JSP
 Support for /solr, did not find org.apache.jasper.servlet.JspServlet
2066 [main] INFO  org.apache.solr.servlet.SolrDispatchFilter  û SolrDispatchFilt
er.init()
2083 [main] INFO  org.apache.solr.core.SolrResourceLoader  û JNDI not configured
 for solr (NoInitialContextEx)
2083 [main] INFO  org.apache.solr.core.SolrResourceLoader  û solr home defaulted
 to 'solr/' (could not find system property or JNDI)
2084 [main] INFO  org.apache.solr.core.SolrResourceLoader  û new SolrResourceLoa
der for directory: 'solr/'
2248 [main] INFO  org.apache.solr.core.ConfigSolr  û Loading container configura
tion from C:\Users\kapel_000\Desktop\solr-4.10.2\example\solr\solr.xml
2323 [main] INFO  org.apache.solr.core.CoresLocator  û Config-defined core root
directory: C:\Users\kapel_000\Desktop\solr-4.10.2\example\solr
2334 [main] INFO  org.apache.solr.core.CoreContainer  û New CoreContainer 307272
05
2335 [main] INFO  org.apache.solr.core.CoreContainer  û Loading cores into CoreC
ontainer [instanceDir=solr/]
2351 [main] INFO  org.apache.solr.handler.component.HttpShardHandlerFactory  û S
etting socketTimeout to: 0
2352 [main] INFO  org.apache.solr.handler.component.HttpShardHandlerFactory  û S
etting urlScheme to: null
2359 [main] INFO  org.apache.solr.handler.component.HttpShardHandlerFactory  û S
etting connTimeout to: 0
2360 [main] INFO  org.apache.solr.handler.component.HttpShardHandlerFactory  û S
etting maxConnectionsPerHost to: 20
2362 [main] INFO  org.apache.solr.handler.component.HttpShardHandlerFactory  û S
etting corePoolSize to: 0
2363 [main] INFO  org.apache.solr.handler.component.HttpShardHandlerFactory  û S
etting maximumPoolSize to: 2147483647
2363 [main] INFO  org.apache.solr.handler.component.HttpShardHandlerFactory  û S
etting maxThreadIdleTime to: 5
2364 [main] INFO  org.apache.solr.handler.component.HttpShardHandlerFactory  û S
etting sizeOfQueue to: -1
2365 [main] INFO  org.apache.solr.handler.component.HttpShardHandlerFactory  û S
etting fairnessPolicy to: false
2596 [main] INFO  org.apache.solr.update.UpdateShardHandler  û Creating UpdateSh
ardHandler HTTP client with params: socketTimeout=0&connTimeout=0&retry=false
2599 [main] INFO  org.apache.solr.logging.LogWatcher  û SLF4J impl is org.slf4j.
impl.Log4jLoggerFactory
2601 [main] INFO  org.apache.solr.logging.LogWatcher  û Registering Log Listener
 [Log4j (org.slf4j.impl.Log4jLoggerFactory)]
2603 [main] INFO  org.apache.solr.core.CoreContainer  û Host Name:
7194 [main] INFO  org.apache.solr.core.CoresLocator  û Looking for core definiti
ons underneath C:\Users\kapel_000\Desktop\solr-4.10.2\example\solr
7213 [main] INFO  org.apache.solr.core.CoresLocator  û Found core collection1 in
 C:\Users\kapel_000\Desktop\solr-4.10.2\example\solr\collection1\
7215 [main] INFO  org.apache.solr.core.CoresLocator  û Found core collection1 in
 C:\Users\kapel_000\Desktop\solr-4.10.2\example\solr\collection5\
7216 [main] INFO  org.apache.solr.core.CoresLocator  û Found 2 core definitions
7220 [main] ERROR org.apache.solr.servlet.SolrDispatchFilter  û Could not start
Solr. Check solr/home property and the logs
7270 [main] ERROR org.apache.solr.core.SolrCore  û null:org.apache.solr.common.S
olrException: Found multiple cores with the name [collection1], with instancedir
s [C:\Users\kapel_000\Desktop\solr-4.10.2\example\solr\collection1\] and [C:\Use
rs\kapel_000\Desktop\solr-4.10.2\example\solr\collection5\]
        at org.apache.solr.core.CoreContainer.checkForDuplicateCoreNames(CoreCon
tainer.java:297)
        at org.apache.solr.core.CoreContainer.load(CoreContainer.java:241)
        at org.apache.solr.servlet.SolrDispatchFilter.createCoreContainer(SolrDi
spatchFilter.java:189)
        at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.ja
va:136)
        at org.eclipse.jetty.servlet.FilterHolder.doStart(FilterHolder.java:119)

        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLife
Cycle.java:64)
        at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.ja
va:719)
        at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletC
ontextHandler.java:265)
        at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.jav
a:1252)
        at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandle
r.java:710)
        at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:494
)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLife
Cycle.java:64)
        at org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(Stan
dardStarter.java:39)
        at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:1
86)
        at org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentM
anager.java:494)
        at org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.j
ava:141)
        at org.eclipse.jetty.deploy.providers.ScanningAppProvider.fileAdded(Scan
ningAppProvider.java:145)
        at org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileAdded(Sc
anningAppProvider.java:56)
        at org.eclipse.jetty.util.Scanner.reportAddition(Scanner.java:609)
        at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:540)
        at org.eclipse.jetty.util.Scanner.scan(Scanner.java:403)
        at org.eclipse.jetty.util.Scanner.doStart(Scanner.java:337)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLife
Cycle.java:64)
        at org.eclipse.jetty.deploy.providers.ScanningAppProvider.doStart(Scanni
ngAppProvider.java:121)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLife
Cycle.java:64)
        at org.eclipse.jetty.deploy.DeploymentManager.startAppProvider(Deploymen
tManager.java:555)
        at org.eclipse.jetty.deploy.DeploymentManager.doStart(DeploymentManager.
java:230)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLife
Cycle.java:64)
        at org.eclipse.jetty.util.component.AggregateLifeCycle.doStart(Aggregate
LifeCycle.java:81)
        at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHand
ler.java:58)
        at org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrappe
r.java:96)
        at org.eclipse.jetty.server.Server.doStart(Server.java:280)
        at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLife
Cycle.java:64)
        at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:12
59)
        at java.security.AccessController.doPrivileged(Native Method)
        at org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:118
2)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.eclipse.jetty.start.Main.invokeMain(Main.java:473)
        at org.eclipse.jetty.start.Main.start(Main.java:615)
        at org.eclipse.jetty.start.Main.main(Main.java:96)

7276 [main] INFO  org.apache.solr.servlet.SolrDispatchFilter  û SolrDispatchFilt
er.init() done
7302 [main] INFO  org.eclipse.jetty.server.AbstractConnector  û Started SocketCo
nnector@0.0.0.0:8983

这些有任何意义吗？我是否搞砸了(不止一次？)或者是我没有意识到的简单事情？

Answer 1

这是您的错误:

7270 [main] ERROR org.apache.solr.core.SolrCore û null:org.apache.solr.common.S olrException: Found multiple cores with the name [collection1], with instancedirs [C:\Users\kapel_000\Desktop\solr-4.10.2\example\solr\collection1] and [C:\Users\kapel_000\Desktop\solr-4.10.2\example\solr\collection5]

检查您的配置，您已将核心集合1配置了两次。一次指向 example\solr\collection1 一次，一次指向 example\solr\collection5