[OAK-8898] On querying, IndexReader failed with AlreadyClosedException

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.26.0, 1.22.3
• Assignee: Mohit Kataria
• Reporter: Mohit Kataria
• Created: 10/Feb/20 08:07
• Updated: 14/Nov/23 14:06
• Resolved: 17/Mar/20 08:43

Description

 This is an intermittent issue, where on querying the code throws AlreadyClosedException.

 

Caused by: org.apache.lucene.store.AlreadyClosedException: this IndexReader is closed
	at org.apache.lucene.index.IndexReader.ensureOpen(IndexReader.java:262) [org.apache.jackrabbit.oak-lucene:1.10.2]
	at org.apache.lucene.index.BaseCompositeReader.document(BaseCompositeReader.java:108) [org.apache.jackrabbit.oak-lucene:1.10.2]
	at org.apache.lucene.index.IndexReader.document(IndexReader.java:446) [org.apache.jackrabbit.oak-lucene:1.10.2]
	at org.apache.jackrabbit.oak.plugins.index.lucene.util.StatisticalSortedSetDocValuesFacetCounts.getAccessibleSampleCount(StatisticalSortedSetDocValuesFacetCounts.java:169) [org.apache.jackrabbit.oak-lucene:1.10.2]
	at org.apache.jackrabbit.oak.plugins.index.lucene.util.StatisticalSortedSetDocValuesFacetCounts.getTopChildren0(StatisticalSortedSetDocValuesFacetCounts.java:104) [org.apache.jackrabbit.oak-lucene:1.10.2]
	at org.apache.jackrabbit.oak.plugins.index.lucene.util.StatisticalSortedSetDocValuesFacetCounts.getTopChildren(StatisticalSortedSetDocValuesFacetCounts.java:70) [org.apache.jackrabbit.oak-lucene:1.10.2]
	at org.apache.lucene.facet.MultiFacets.getTopChildren(MultiFacets.java:52) [org.apache.jackrabbit.oak-lucene:1.10.2]
	at org.apache.jackrabbit.oak.plugins.index.lucene.LucenePropertyIndex$LuceneFacetProvider.getFacets(LucenePropertyIndex.java:1547) [org.apache.jackrabbit.oak-lucene:1.10.2]
	at org.apache.jackrabbit.oak.plugins.index.search.spi.query.FulltextIndex$FulltextResultRow.getFacets(FulltextIndex.java:353) [org.apache.jackrabbit.oak-lucene:1.10.2]
	at org.apache.jackrabbit.oak.plugins.index.search.spi.query.FulltextIndex$FulltextPathCursor$2.getValue(FulltextIndex.java:472) [org.apache.jackrabbit.oak-lucene:1.10.2]
	... 237 common frames omitted

Issue Links

• is related to: OAK-10549 Improve performance of facet count at scale (Lucene)
• relates to: OAK-9561 Flaky test: DelayedFacetReadTest.facet
• relates to: OAK-8978 Cache facet results
• links to: GitHub Pull Request #180
• links to: GitHub Pull Request #198
• links to: GitHub Pull Request #200