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Posted to solr-dev@lucene.apache.org by "Hoss Man (JIRA)" <ji...@apache.org> on 2010/03/02 01:58:05 UTC
[jira] Commented: (SOLR-1797) ConcurrentModificationException
[ https://issues.apache.org/jira/browse/SOLR-1797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12839943#action_12839943 ]
Hoss Man commented on SOLR-1797:
--------------------------------
NOTE: Initial thread where Yonik had some more comments about how/where the concurrent modification can come from...
http://old.nabble.com/ConcurrentModificationException-to27722422.html
> ConcurrentModificationException
> -------------------------------
>
> Key: SOLR-1797
> URL: https://issues.apache.org/jira/browse/SOLR-1797
> Project: Solr
> Issue Type: Bug
> Components: Build
> Affects Versions: 1.4, 1.5
> Environment: Centos 5, Tomcat 6
> Reporter: Dan Hertz
> Priority: Blocker
>
> SOLR 1.4 (final) and 1.5 nightly work fine on a Windows box, but on our Centos 5 box, we're getting a ConcurrentModificationException when starting Tomcat 6.
> Yonik Seeley asked me to start a JIRA bug report, mentioning that, "It looks like resourceLoader.newInstance() is fundamentally not thread safe." (SOLR-USER)
> = = = Log Below: = = =
> INFO | jvm 1 | 2010/02/24 21:27:04 | SEVERE: java.util.ConcurrentModificationException
> INFO | jvm 1 | 2010/02/24 21:27:04 | at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at java.util.AbstractList$Itr.next(AbstractList.java:343)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.solr.core.SolrResourceLoader.inform(SolrResourceLoader.java:507)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.solr.core.SolrCore.<init>(SolrCore.java:606)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.solr.core.CoreContainer.create(CoreContainer.java:429)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.solr.core.CoreContainer.load(CoreContainer.java:285)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:117)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:86)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:275)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:397)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:108)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3800)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.core.StandardContext.start(StandardContext.java:4450)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:526)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:630)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:556)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:491)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1206)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:314)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.core.StandardHost.start(StandardHost.java:722)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.core.StandardService.start(StandardService.java:516)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.startup.Catalina.start(Catalina.java:583)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at java.lang.reflect.Method.invoke(Method.java:597)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at java.lang.reflect.Method.invoke(Method.java:597)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at org.tanukisoftware.wrapper.WrapperStartStopApp.run(WrapperStartStopApp.java:242)
> INFO | jvm 1 | 2010/02/24 21:27:04 | at java.lang.Thread.run(Thread.java:619)
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