web - SolrCore shuts down, throws NullPointerException -


i configuring solr first time. google has yielded little insight. see questions postesd similar issue, not same.

i have solrcore called collection1 in ~/solr-home/solr. have verified configuration read solr when starts up. here declaration core in ~solr-home/solr/solr.xml:

  <cores adminpath="/admin/cores" defaultcorename="collection1" host="${host:}" hostport="${jetty.port:}" hostcontext="${hostcontext:}" zkclienttimeout="${zkclienttimeout:15000}"> <core name="collection1" instancedir="collection1" />

solr running on ubuntu. attempting inmport microsoft sql server running on windows, don't far making jdbc connection. here data import declaration:

  <requesthandler name="/dataimport" class="org.apache.solr.handler.dataimport.dataimporhandler">     <lst name="defaults">     <str name="config">data-config.xml</str>     </lst>

my core seems starting @ first. log file:

info: creating solrcore 'collection1' using instancedir: solr/collection1 may 09, 2013 2:52:22 pm org.apache.solr.core.solrresourceloader <init> info: new solrresourceloader directory: 'solr/collection1/' may 09, 2013 2:52:22 pm org.apache.solr.core.solrresourceloader replaceclassloader info: adding 'file:/home/moon/solr-home/solr/collection1/lib/solr-dataimporthandler-4.2.0.jar' classloader may 09, 2013 2:52:22 pm org.apache.solr.core.solrresourceloader replaceclassloader info: adding 'file:/home/moon/solr-home/solr/collection1/lib/solr-dataimporthandler-extras-4.2.0.jar' classloader

...

info: [collection1] opening new solrcore @ solr/collection1/, datadir=/solr-home/data/ may 09, 2013 2:52:25 pm org.apache.solr.core.jmxmonitoredmap <init> info: jmx monitoring enabled. adding solr mbeans jmx server: com.sun.jmx.mbeanserver.jmxmbeanserver@4645a73 may 09, 2013 2:52:25 pm org.apache.solr.core.solrcore initlisteners info: [collection1] added solreventlistener newsearcher: org.apache.solr.core.querysenderlistener{queries=[]} may 09, 2013 2:52:25 pm org.apache.solr.core.solrcore initlisteners info: [collection1] added solreventlistener firstsearcher: org.apache.solr.core.querysenderlistener{queries=[{q=static firstsearcher warming in solrconfig.xml}]}

... little while later shuts down:

may 09, 2013 2:52:25 pm org.apache.solr.search.solrindexsearcher <init> info: opening searcher@5b27f008 main may 09, 2013 2:52:25 pm org.apache.solr.core.solrcore close info: [collection1]  closing solrcore org.apache.solr.core.solrcore@78a38bfb may 09, 2013 2:52:25 pm org.apache.solr.core.querysenderlistener newsearcher info: querysenderlistener sending requests searcher@5b27f008 main{standarddirectoryreader(segments_1:1)} may 09, 2013 2:52:25 pm org.apache.solr.update.solrcorestate decrefsolrcorestate info: closing solrcorestate may 09, 2013 2:52:25 pm org.apache.solr.update.defaultsolrcorestate closeindexwriter info: solrcorestate ref count has reached 0 - closing indexwriter

... , throws nullpointerexception:

may 09, 2013 2:52:25 pm org.apache.solr.common.solrexception log severe: java.lang.nullpointerexception         @ org.apache.solr.handler.component.searchhandler.handlerequestbody(searchhandler.java:181)         @ org.apache.solr.handler.requesthandlerbase.handlerequest(requesthandlerbase.java:135)         @ org.apache.solr.core.solrcore.execute(solrcore.java:1817)         @ org.apache.solr.core.querysenderlistener.newsearcher(querysenderlistener.java:64)         @ org.apache.solr.core.solrcore$5.call(solrcore.java:1606)         @ java.util.concurrent.futuretask$sync.innerrun(futuretask.java:334)         @ java.util.concurrent.futuretask.run(futuretask.java:166)         @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1145)         @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:615)         @ java.lang.thread.run(thread.java:722)

thank can give me.


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