Linbin Chen created SOLR-3449:
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Summary: QueryComponent.doFieldSortValues throw
ArrayIndexOutOfBoundsException when has maxDoc=0 Segment
Key: SOLR-3449
URL: https://issues.apache.org/jira/browse/SOLR-3449
Project: Solr
Issue Type: Bug
Components: search
Affects Versions: 3.5, 3.6
Reporter: Linbin Chen
Fix For: 3.6.1
Attachments: SOLR-3449.patch
have index
{code}
Segment name=_9, offest=[docBase=0, maxDoc=245] idx=0
Segment name=_a, offest=[docBase=245, maxDoc=3] idx=1
Segment name=_b, offest=[docBase=248, maxDoc=0] idx=2
Segment name=_c, offest=[docBase=248, maxDoc=1] idx=3
Segment name=_d, offest=[docBase=249, maxDoc=0] idx=4
Segment name=_e, offest=[docBase=249, maxDoc=1] idx=5
Segment name=_f, offest=[docBase=250, maxDoc=0] idx=6
Segment name=_g, offest=[docBase=250, maxDoc=3] idx=7
Segment name=_h, offest=[docBase=253, maxDoc=0] idx=8
{code}
maxDoc=0 's Segment maybe create by mergeIndexes。(can make sure maxDoc=0 's
segment not merge, but when couldn't control merge indexes)
when use fsv=true get sort values, hit docId=249 throw
ArrayIndexOutOfBoundsException
{code}
2012-5-11 14:28:28 org.apache.solr.common.SolrException log
ERROR: java.lang.ArrayIndexOutOfBoundsException: 0
at
org.apache.lucene.search.FieldComparator$LongComparator.copy(FieldComparator.java:600)
at
org.apache.solr.handler.component.QueryComponent.doFieldSortValues(QueryComponent.java:463)
at
org.apache.solr.handler.component.QueryComponent.process(QueryComponent.java:400)
{code}
reason:
//idx 0 1 2 3 4 5 6 7 8
//int[] maxDocs={245, 3, 0, 1, 0, 1, 0, 3, 0};
int[] offsets = { 0, 245, 248, 248, 249, 249, 250, 250, 253};
org.apache.solr.search.SolrIndexReader.readerIndex(249, offsets) return idx=4
not 5。
correct idx=5。
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