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https://issues.apache.org/jira/browse/SOLR-3264?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13239069#comment-13239069
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Mark Miller commented on SOLR-3264:
-----------------------------------
+1 - the patch looks good to me.
> SolrResourceLoader logging about "Solr home set to" is very
> missleading/broken in multicore
> -------------------------------------------------------------------------------------------
>
> Key: SOLR-3264
> URL: https://issues.apache.org/jira/browse/SOLR-3264
> Project: Solr
> Issue Type: Bug
> Reporter: Hoss Man
> Assignee: Hoss Man
> Fix For: 3.6, 4.0
>
> Attachments: SOLR-3264.patch
>
>
> the SolrResourceLoader constructor has this bit of logging left over from the
> days before multicore...
> {noformat}
> log.info("Solr home set to '" + this.instanceDir + "'");
> {noformat}
> but this is confusing and missleading since there are N+1 SOlrResourceLoaders
> in a given solr instance (1 for the CoreContainer, and N for the N cores) and
> only one of them is refering to the *true* "Solr Home" dir, the others are
> refering to the *instanceDir* of the respective cores.
> For example, using the 3.5 example and running {{java
> -Dsolr.solr.home=multicore -jar start.jar}} you'll see...
> {noformat}
> Mar 21, 2012 7:02:46 PM org.apache.solr.core.SolrResourceLoader locateSolrHome
> INFO: JNDI not configured for solr (NoInitialContextEx)
> Mar 21, 2012 7:02:46 PM org.apache.solr.core.SolrResourceLoader locateSolrHome
> INFO: using system property solr.solr.home: multicore
> Mar 21, 2012 7:02:46 PM org.apache.solr.core.SolrResourceLoader <init>
> INFO: Solr home set to 'multicore/'
> Mar 21, 2012 7:02:46 PM org.apache.solr.servlet.SolrDispatchFilter init
> INFO: SolrDispatchFilter.init()
> Mar 21, 2012 7:02:46 PM org.apache.solr.core.SolrResourceLoader locateSolrHome
> INFO: JNDI not configured for solr (NoInitialContextEx)
> Mar 21, 2012 7:02:46 PM org.apache.solr.core.SolrResourceLoader locateSolrHome
> INFO: using system property solr.solr.home: multicore
> Mar 21, 2012 7:02:46 PM org.apache.solr.core.CoreContainer$Initializer
> initialize
> INFO: looking for solr.xml:
> /home/hossman/lucene/lucene-3.5.0_tag/solr/example/multicore/solr.xml
> Mar 21, 2012 7:02:46 PM org.apache.solr.core.SolrResourceLoader locateSolrHome
> INFO: JNDI not configured for solr (NoInitialContextEx)
> Mar 21, 2012 7:02:46 PM org.apache.solr.core.SolrResourceLoader locateSolrHome
> INFO: using system property solr.solr.home: multicore
> Mar 21, 2012 7:02:46 PM org.apache.solr.core.CoreContainer <init>
> INFO: New CoreContainer: solrHome=multicore/ instance=108681753
> Mar 21, 2012 7:02:46 PM org.apache.solr.core.SolrResourceLoader <init>
> INFO: Solr home set to 'multicore/'
> Mar 21, 2012 7:02:46 PM org.apache.solr.core.SolrResourceLoader <init>
> INFO: Solr home set to 'multicore/core0/'
> ...lots of logs about initing core0...
> INFO: registering core: core0
> Mar 21, 2012 7:02:47 PM org.apache.solr.core.SolrCore registerSearcher
> INFO: [core0] Registered new searcher Searcher@5dde45e2 main
> Mar 21, 2012 7:02:47 PM org.apache.solr.core.SolrResourceLoader <init>
> INFO: Solr home set to 'multicore/core1/'
> Mar 21, 2012 7:02:47 PM org.apache.solr.core.SolrConfig <init>
> ...lots of logs about initing core1...
> Mar 21, 2012 7:02:47 PM org.apache.solr.core.CoreContainer register
> INFO: registering core: core1
> ...
> {noformat}
> we should revamp/add some of the log messages from CoreContainer and
> SolrResourceLoader to make it more clear what the one true solr home is, and
> when SolrresourceLoader is being used for an instanceDir of a single core.
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