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Posted to dev@lucene.apache.org by "Adrien Grand (JIRA)" <ji...@apache.org> on 2018/04/13 16:18:00 UTC
[jira] [Resolved] (LUCENE-8252) ArrayIndexOutOfBoundsException hit
in lucene50.ForUtil.readBlock
[ https://issues.apache.org/jira/browse/LUCENE-8252?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Adrien Grand resolved LUCENE-8252.
----------------------------------
Resolution: Invalid
This error indicates that your shard is corrupt indeed. We automatically verify checksums on merge since we need to read the data for the merge anyway, so it only introduces little additional CPU overhead. However checking a read-only index that is heavily searched is more challenging since you don't want the checksum verifications to trash your I/O cache.
> ArrayIndexOutOfBoundsException hit in lucene50.ForUtil.readBlock
> ----------------------------------------------------------------
>
> Key: LUCENE-8252
> URL: https://issues.apache.org/jira/browse/LUCENE-8252
> Project: Lucene - Core
> Issue Type: Bug
> Affects Versions: 6.6.2
> Reporter: Michael Braun
> Priority: Major
>
> We hit this on an autowarming query with a phrase on a particular shard, and it keeps happening with similar errors (and on other position-sensitive queries) post-restart on both that particular autowarming query and other queries. I'm guessing somehow a file in the index got written incorrectly with regard to positions.
> {code}
> 10:11:58 ERROR 04-06 17:52:06.360 org.apache.solr.handler.RequestHandlerBase (searcherExecutor-9-thread-1-processing-n:ourip:8983_solr x:collection_shardY_replica1 s:shardY c:collection) [s:Y ] java.lang.ArrayIndexOutOfBoundsException: -95
> at org.apache.lucene.codecs.lucene50.ForUtil.readBlock(ForUtil.java:196)
> at org.apache.lucene.codecs.lucene50.Lucene50PostingsReader$BlockPostingsEnum.refillPositions(Lucene50PostingsReader.java:638)
> at org.apache.lucene.codecs.lucene50.Lucene50PostingsReader$BlockPostingsEnum.skipPositions(Lucene50PostingsReader.java:747)
> at org.apache.lucene.codecs.lucene50.Lucene50PostingsReader$BlockPostingsEnum.nextPosition(Lucene50PostingsReader.java:768)
> at org.apache.lucene.search.ExactPhraseScorer.phraseFreq(ExactPhraseScorer.java:128)
> at org.apache.lucene.search.ExactPhraseScorer.access$000(ExactPhraseScorer.java:27)
> at org.apache.lucene.search.ExactPhraseScorer$1.matches(ExactPhraseScorer.java:73)
> at org.apache.lucene.search.Weight$DefaultBulkScorer.scoreAll(Weight.java:253)
> at org.apache.lucene.search.Weight$DefaultBulkScorer.score(Weight.java:197)
> at org.apache.lucene.search.BulkScorer.score(BulkScorer.java:39)
> at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:668)
> at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:472)
> at org.apache.solr.search.SolrIndexSearcher.buildAndRunCollectorChain(SolrIndexSearcher.java:217)
> at org.apache.solr.search.SolrIndexSearcher.getDocListNC(SolrIndexSearcher.java:1582)
> at org.apache.solr.search.SolrIndexSearcher.getDocListC(SolrIndexSearcher.java:1399)
> at org.apache.solr.search.SolrIndexSearcher.search(SolrIndexSearcher.java:566)
> at org.apache.solr.handler.component.QueryComponent.process(QueryComponent.java:545)
> at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:296)
> at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:173)
> at org.apache.solr.core.SolrCore.execute(SolrCore.java:2477)
> at org.apache.solr.core.QuerySenderListener.newSearcher(QuerySenderListener.java:74)
> at org.apache.solr.core.SolrCore.lambda$getSearcher$15(SolrCore.java:2249)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:229)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> {code}
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