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https://issues.apache.org/jira/browse/SOLR-5322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14107303#comment-14107303
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Cott Lang commented on SOLR-5322:
---------------------------------
[~erickerickson] - It's not the home directory permissions. If any subdirectory
of the home directory isn't readable, Solr fails as indicated above.
Here's an example:
drwxr-xr-x 3 solr solr 4096 Aug 20 21:25 collection1
drwx------ 2 root root 49152 Aug 21 22:02 lost+found
-rw-r--r-- 1 solr solr 1715 Jun 18 11:59 solr.xml
Despite this otherwise being an otherwise healthy Solr home directory, Solr
fails because it can't read lost+found.
> Permisions didn't check when call discoverUnder
> -----------------------------------------------
>
> Key: SOLR-5322
> URL: https://issues.apache.org/jira/browse/SOLR-5322
> Project: Solr
> Issue Type: Bug
> Components: contrib - Clustering
> Affects Versions: 4.5
> Environment: Centos 6.4
> tomcat6
> Reporter: Said Chavkin
>
> Hello.
> When in solr/home directory exists directory to which solr do not have
> rights, then solr failed to start with exception
> 2108 [main] INFO org.apache.solr.core.CoresLocator - Looking for core
> definitions underneath /var/lib/solr
> 2109 [main] ERROR org.apache.solr.servlet.SolrDispatchFilter - Could not
> start Solr. Check solr/home property and the logs
> 2138 [main] ERROR org.apache.solr.core.SolrCore -
> null:java.lang.NullPointerException
> at
> org.apache.solr.core.CorePropertiesLocator.discoverUnder(CorePropertiesLocator.java:121)
> at
> org.apache.solr.core.CorePropertiesLocator.discoverUnder(CorePropertiesLocator.java:130)
> at
> org.apache.solr.core.CorePropertiesLocator.discover(CorePropertiesLocator.java:113)
> at org.apache.solr.core.CoreContainer.load(CoreContainer.java:226)
> at
> org.apache.solr.servlet.SolrDispatchFilter.createCoreContainer(SolrDispatchFilter.java:177)
> at
> org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:127)
> at
> org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295)
> at
> org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)
> at
> org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115)
> at
> org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3838)
> at
> org.apache.catalina.core.StandardContext.start(StandardContext.java:4488)
> at
> org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
> at
> org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
> at
> org.apache.catalina.core.StandardHost.addChild(StandardHost.java:526)
> at
> org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:637)
> at
> org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:563)
> at
> org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:498)
> at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277)
> at
> org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321)
> at
> org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
> at
> org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
> at org.apache.catalina.core.StandardHost.start(StandardHost.java:722)
> at
> org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
> at
> org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
> at
> org.apache.catalina.core.StandardService.start(StandardService.java:516)
> at
> org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
> at org.apache.catalina.startup.Catalina.start(Catalina.java:593)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:616)
> at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
> at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
> 2138 [main] INFO org.apache.solr.servlet.SolrDispatchFilter -
> SolrDispatchFilter.init() done
> For example:
> solr home located on /var/lib/solr
> /var/lib/solr is another file system, it has lost+found directory.
> As result solr can't to star.
> Yours faithfully.
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