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https://issues.apache.org/jira/browse/OAK-3069?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chetan Mehrotra resolved OAK-3069.
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Resolution: Fixed
* Ported to branches
* Updated release notes and docs
> Provide option to eagerly copy the new index files in CopyOnRead
> ----------------------------------------------------------------
>
> Key: OAK-3069
> URL: https://issues.apache.org/jira/browse/OAK-3069
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: lucene
> Reporter: Chetan Mehrotra
> Assignee: Chetan Mehrotra
> Labels: docs-impacting
> Fix For: 1.2.3, 1.3.3, 1.0.17
>
> Attachments: OAK-3069+logs-v2.patch, OAK-3069+logs.patch,
> OAK-3069.patch
>
>
> Currently the CopyOnRead feature lazily starts copying the index files upon
> first access. This at times does not work efficiently because the index gets
> updated frequently and hence by the time copy is done index would have moved
> on. Due to this most of the index read turn out to be remote reads and cause
> slowness
> We should provide an option on per index basis to enable copying the files
> eagerly before exposing the new index to the query engine such that any read
> done is done locally
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