Exception indicates a threading bug, not a scaling issue...
I'm sure the issue will be illuminated on soon though.
KyleMorrison wrote:
I apologize for spamming this mailing list with my problems, but I'm at my
wits end. I'll get right to the point.
I have an xml file which is ~1GB which I wish to index. If that is
successful, I will move to a larger file of closer to 20GB. However, when I
run my data-config(let's call it dc.xml) over it, the import only manages to
get about 27 rows, out of roughly 200K. The exact same data-config(dc.xml)
works perfectly on smaller data files of the same type.
This data-config is quite large, maybe 250 fields. When I run a smaller
data-config (let's call it sdc.xml) over the 1GB file, the sdc.xml works
perfectly. The only conclusion I can draw from this is that the data-config
method just doesn't scale well.
When the dc.xml fails, the server logs spit out:
Sep 30, 2008 11:40:18 AM org.apache.solr.core.SolrCore execute
INFO: [] webapp=/solr path=/dataimport params={command=full-import} status=0
QTime=95
Sep 30, 2008 11:40:18 AM org.apache.solr.handler.dataimport.DataImporter
doFullImport
INFO: Starting Full Import
Sep 30, 2008 11:40:18 AM org.apache.solr.update.DirectUpdateHandler2
deleteAll
INFO: [] REMOVING ALL DOCUMENTS FROM INDEX
Sep 30, 2008 11:40:20 AM org.apache.solr.handler.dataimport.DataImporter
doFullImport
SEVERE: Full Import failed
java.util.ConcurrentModificationException
at
java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
at java.util.AbstractList$Itr.next(AbstractList.java:343)
at
org.apache.solr.handler.dataimport.DocBuilder.addFieldValue(DocBuilder.java:402)
at
org.apache.solr.handler.dataimport.DocBuilder.addFields(DocBuilder.java:373)
at
org.apache.solr.handler.dataimport.DocBuilder.buildDocument(DocBuilder.java:304)
at
org.apache.solr.handler.dataimport.DocBuilder.doFullDump(DocBuilder.java:178)
at
org.apache.solr.handler.dataimport.DocBuilder.execute(DocBuilder.java:136)
at
org.apache.solr.handler.dataimport.DataImporter.doFullImport(DataImporter.java:334)
at
org.apache.solr.handler.dataimport.DataImporter.runCmd(DataImporter.java:386)
at
org.apache.solr.handler.dataimport.DataImporter$1.run(DataImporter.java:377)
Sep 30, 2008 11:41:18 AM org.apache.solr.core.SolrCore execute
INFO: [] webapp=/solr path=/dataimport params={command=full-import} status=0
QTime=77
Sep 30, 2008 11:41:18 AM org.apache.solr.handler.dataimport.DataImporter
doFullImport
INFO: Starting Full Import
Sep 30, 2008 11:41:18 AM org.apache.solr.update.DirectUpdateHandler2
deleteAll
INFO: [] REMOVING ALL DOCUMENTS FROM INDEX
Sep 30, 2008 11:41:19 AM org.apache.solr.handler.dataimport.DataImporter
doFullImport
SEVERE: Full Import failed
java.util.ConcurrentModificationException
at
java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
at java.util.AbstractList$Itr.next(AbstractList.java:343)
at
org.apache.solr.handler.dataimport.DocBuilder.addFieldValue(DocBuilder.java:402)
at
org.apache.solr.handler.dataimport.DocBuilder.addFields(DocBuilder.java:373)
at
org.apache.solr.handler.dataimport.DocBuilder.buildDocument(DocBuilder.java:304)
at
org.apache.solr.handler.dataimport.DocBuilder.doFullDump(DocBuilder.java:178)
at
org.apache.solr.handler.dataimport.DocBuilder.execute(DocBuilder.java:136)
at
org.apache.solr.handler.dataimport.DataImporter.doFullImport(DataImporter.java:334)
at
org.apache.solr.handler.dataimport.DataImporter.runCmd(DataImporter.java:386)
at
org.apache.solr.handler.dataimport.DataImporter$1.run(DataImporter.java:377)
This mass of exceptions DOES NOT occur when I perform the same full-import
with sdc.xml. As far as I can tell, the only difference between the two
files is the amount of fields they contain.
Any guidance or information would be greatly appreciated.
Kyle
PS The schema.xml in use specifies almost all fields as multivalued, and has
a copyfield for almost every field. I can fix this if it is causing my
problem, but I would prefer not to.
