[OAK-4909] NRTIndex can get closed while in use

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.5.12, 1.6.0
• Component/s: lucene
• Assignee: Chetan Mehrotra
• Reporter: Chetan Mehrotra
• Created: 10/Oct/16 09:17
• Updated: 14/Oct/16 10:53
• Resolved: 10/Oct/16 10:01

Description

With hybrid indexing enabled it can happen that NRTIndex gets closed while its in use

2016-10-10 14:22:41,094 WARN  NA [Workflow Starter Thread] o.a.j.o.p.i.l.h.DocumentQueue - Error occurred while indexing index [/oak:index/hybridIndex] java.lang.IllegalStateException: null
	at com.google.common.base.Preconditions.checkState(Preconditions.java:134)
	at org.apache.jackrabbit.oak.plugins.index.lucene.hybrid.NRTIndex.createReader(NRTIndex.java:168)
	at org.apache.jackrabbit.oak.plugins.index.lucene.hybrid.NRTIndex.getPrimaryReader(NRTIndex.java:87)
	at org.apache.jackrabbit.oak.plugins.index.lucene.hybrid.NRTIndex.getReaders(NRTIndex.java:118)
	at org.apache.jackrabbit.oak.plugins.index.lucene.IndexNode.getNRTReaders(IndexNode.java:200)
	at org.apache.jackrabbit.oak.plugins.index.lucene.IndexNode.refreshReaders(IndexNode.java:172)
	at org.apache.jackrabbit.oak.plugins.index.lucene.IndexNode.access$000(IndexNode.java:50)
	at org.apache.jackrabbit.oak.plugins.index.lucene.IndexNode$1.run(IndexNode.java:84)
	at org.apache.jackrabbit.oak.plugins.index.lucene.hybrid.RefreshOnWritePolicy.refreshOnWriteIfRequired(RefreshOnWritePolicy.java:41)
	at org.apache.jackrabbit.oak.plugins.index.lucene.IndexNode.refreshReadersOnWriteIfRequired(IndexNode.java:168)
	at org.apache.jackrabbit.oak.plugins.index.lucene.hybrid.DocumentQueue.processDocs(DocumentQueue.java:210)

Issue Links

• relates to: OAK-4412 Lucene hybrid index