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https://issues.apache.org/jira/browse/SOLR-10115?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yonik Seeley reassigned SOLR-10115:
-----------------------------------
Assignee: Yonik Seeley
> 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: 4.4
> Reporter: Yonik Seeley
> Assignee: Yonik Seeley
> Attachments: YCS_HdfsTest.java
>
>
> 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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