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https://issues.apache.org/jira/browse/OAK-537?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Mueller reassigned OAK-537:
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Assignee: Thomas Mueller
> The Property2Index eagerly and unnecessarily fetches all data
> -------------------------------------------------------------
>
> Key: OAK-537
> URL: https://issues.apache.org/jira/browse/OAK-537
> Project: Jackrabbit Oak
> Issue Type: Bug
> Reporter: Thomas Mueller
> Assignee: Thomas Mueller
> Priority: Minor
>
> Currently, the Property2Index (as well as the PropertyIndex and the
> NodeTypeIndex) loads all paths into a hash set. This is even the case for the
> getCost operation, which should be fast and therefore not load too much data.
> This strategy can cause ouf-of-memory if the result is too big. Also, loading
> all data is not necessary unless the user reads all rows.
> Instead, the index should only load data on demand. Also, the getCost
> operation should only estimate the number of read nodes, and not actually
> read the data.
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