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https://issues.apache.org/jira/browse/OAK-6904?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chetan Mehrotra updated OAK-6904:
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Fix Version/s: (was: 1.8)
1.10
> NRT Indexes should be closed if async indexer progresses
> --------------------------------------------------------
>
> Key: OAK-6904
> URL: https://issues.apache.org/jira/browse/OAK-6904
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: lucene
> Reporter: Chetan Mehrotra
> Assignee: Chetan Mehrotra
> Priority: Minor
> Fix For: 1.10
>
>
> Currently NRTIndex associated with IndexNodeManager are only closed upon
> index update. However each IndexNodeManager keeps reference to 2 NRTIndex
> instances. It can happen that following sequence can happen
> # Index /oak:index/ntBaseLucene refers to 2 nrt indexes NR1 and NR2. Where
> NR1 has 1 M entries and NR2 has 1 M entries
> # AsyncIndexer updates and thus refreshes the /oak:index/ntBaseLucene. This
> causes new NRT Index NR3 to be created and NR1 to be closed. So NR3 and NR2
> are active
> # AsyncIndexer updates but no change happen in setup which causes any update
> to /oak:index/ntBaseLucene. Thus this index does not get refreshed and
> continues to refer to NR2
> So as a fix we should refresh any index if it refers to 2 NRT indexes where
> previous one is not empty
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