The answer is yes. "collection1" is defined as the default core name in CoreContainer.java on line 94 or so. I have opened a jira issue for this and other issues related to the documentation of solr.xml and Solr core configuration issues for Solr 4.0
https://issues.apache.org/jira/browse/SOLR-3753 On Thu, Aug 23, 2012 at 1:04 PM, Tom Burton-West <tburt...@umich.edu> wrote: > I did not describe the problems correctly. > > I have 3 solr shards with solr homes .../solrs/4.0/1 .../solrs/4.0/2 and > .../solrs/4.0/2solrs/3 > > For shard 1 I have a solr.xml file with the modifications described in the > previous message. For that instance, it appears that the problem is that > the semantics of specifing the instancedir have changed between 3.6 and > 4.0. > > I specified the instancedir as instanceDir="." > > However, I get this error in the log: > > "Cannot create directory: /l/solrs/dev/solrs/4.0/1/./data/index" > > Note that instead of using Solr home /l/solrs/dev/solrs/4.0/1 (what I > would expect for the relative path "."), that Solr appears to be appending > "." to Solr home. > The solr.xml file says that paths are relative to the "installation > directory". Perhaps that needs to be clarified in the file. > > > For shards 2 and 3, I tried not using a solr.xml file and I did not create > a "collection1" subdirectory. For these solr instances, I got the messages > about collection1 and files not being found in the $SOLRHOME/collection1 > path > > " Can't find resource 'solrconfig.xml' in classpath or > '/l/solrs/dev/solrs/4.0/3/collection1/conf/', > cwd=/l/local/apache-tomcat-dev" > Looking at the logs it appears that "collection1" is specified as the > default core somewhere: > > Aug 23, 2012 12:42:47 PM org.apache.solr.core.CoreContainer$Initializer > initialize > INFO: looking for solr.xml: /l/solrs/dev/solrs/4.0/3/solr.xml > Aug 23, 2012 12:42:47 PM org.apache.solr.core.CoreContainer <init> > INFO: New CoreContainer 1281149250 > Aug 23, 2012 12:42:47 PM org.apache.solr.core.CoreContainer$Initializer > initialize > INFO: no solr.xml file found - using default > Aug 23, 2012 12:42:47 PM org.apache.solr.core.CoreContainer load > INFO: Loading CoreContainer using Solr Home: '/l/solrs/dev/solrs/4.0/3/' > Aug 23, 2012 12:42:47 PM org.apache.solr.core.SolrResourceLoader <init> > INFO: Creating SolrCore 'collection1' using instanceDir: > /l/solrs/dev/solrs/4.0/3/collection1 > > Is this default of "collection1" specified in some other config file or > hardcoded into Solr somewhere? > > If using a core is mandatory with Solr 4.0 , the CoreAdmin wiki page and > the release notes should point this out. > > > Tom > > > >
