Yonik Seeley created SOLR-10115:
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Summary: Corruption in read-side of SOLR-HDFS stack
Key: SOLR-10115
URL: https://issues.apache.org/jira/browse/SOLR-10115
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Affects Versions: 4.10
Reporter: Yonik Seeley
I've been trying to track down some random AIOOB exceptions in Lucene for a
customer, and I've managed to reproduce the issue with a unit test of
sufficient size in conjunction with highly concurrent read requests.
A typical stack trace looks like:
{code}
org.apache.solr.common.SolrException; java.lang.ArrayIndexOutOfBoundsException:
172033655
at org.apache.lucene.codecs.lucene40.BitVector.get(BitVector.java:149)
at
org.apache.lucene.codecs.lucene41.Lucene41PostingsReader$BlockDocsEnum.nextDoc(Lucene41PostingsReader.java:455)
at
org.apache.lucene.search.MultiTermQueryWrapperFilter.getDocIdSet(MultiTermQueryWrapperFilter.java:111)
at
org.apache.lucene.search.ConstantScoreQuery$ConstantWeight.scorer(ConstantScoreQuery.java:157)
{code}
The number of unique stack traces is relatively high, most AIOOB exceptions,
but some EOF. Most exceptions occur in the term index, however I believe this
may be just an artifact of where highly concurrent access is most likely to
occur. The queries that triggered this had many wildcards and other multi-term
queries.
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