Launching a multicore solr with dataimporthandler using a mysql driver,
(driver="com.mysql.jdbc.Driver") works fine if the mysql connector jar
(mysql-connector-java-5.0.7-bin.jar) is in the classpath, either jdk
classpath or inside the solr.war lib dir.
While putting the mysql-connector-java-5.0.7-bin.jar in core0/lib
directory, or in the multicore shared lib dir (specified in sharedLib
attribute in solr.xml) result in exception, even if the jar is correctly
loaded by the classloader:
25-ago-2008 16.36.05 org.apache.solr.core.SolrResourceLoader
createClassLoader
INFO: Adding
'file:/E:/Temp/apache-solr-2008-08-25_08-06-39/example/solr/lib/mysql-connector-java-5.0.7-bin.jar'
to Solr classloader
[..]
GRAVE: Exception while loading DataImporter
org.apache.solr.handler.dataimport.DataImportHandlerException: Failed to
initialize DataSource: null Processing Document #
at
org.apache.solr.handler.dataimport.DataImporter.getDataSourceInstance(DataImporter.java:306)
at
org.apache.solr.handler.dataimport.DataImporter.addDataSource(DataImporter.java:273)
at
org.apache.solr.handler.dataimport.DataImporter.initEntity(DataImporter.java:228)
at
org.apache.solr.handler.dataimport.DataImporter.<init>(DataImporter.java:98)
at
org.apache.solr.handler.dataimport.DataImportHandler.inform(DataImportHandler.java:106)
at
org.apache.solr.core.SolrResourceLoader.inform(SolrResourceLoader.java:311)
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:475)
at org.apache.solr.core.CoreContainer.create(CoreContainer.java:323)
at org.apache.solr.core.CoreContainer.load(CoreContainer.java:216)
at
org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:104)
at
org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:69)
at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:99)
at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
at
org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:594)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:139)
at
org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1218)
at
org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:500)
at
org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:448)
at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
at
org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:147)
at
org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:161)
at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
at
org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:147)
at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
at
org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:117)
at org.mortbay.jetty.Server.doStart(Server.java:210)
at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
at org.mortbay.xml.XmlConfiguration.main(XmlConfiguration.java:929)
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.mortbay.start.Main.invokeMain(Main.java:183)
at org.mortbay.start.Main.start(Main.java:497)
at org.mortbay.start.Main.main(Main.java:115)
Caused by:
org.apache.solr.handler.dataimport.DataImportHandlerException: driver
could not be loaded Processing Document #
at
org.apache.solr.handler.dataimport.JdbcDataSource.createConnectionFactory(JdbcDataSource.java:110)
at
org.apache.solr.handler.dataimport.JdbcDataSource.init(JdbcDataSource.java:63)
at
org.apache.solr.handler.dataimport.DataImporter.getDataSourceInstance(DataImporter.java:303)
... 34 more
Shouldn't it works when the jar is (only) in the core lib dir?
tested on windows machine, with java 1.6 and today hudson nightly build
of solr.
Walter
