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https://issues.apache.org/jira/browse/OAK-2931?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Davide Giannella closed OAK-2931.
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Bulk Close for 1.3.0
> RDBDocumentStore: mitigate effects of large query result sets
> -------------------------------------------------------------
>
> Key: OAK-2931
> URL: https://issues.apache.org/jira/browse/OAK-2931
> Project: Jackrabbit Oak
> Issue Type: Sub-task
> Components: rdbmk
> Affects Versions: 1.2.2, 1.0.14, 1.3
> Reporter: Julian Reschke
> Assignee: Julian Reschke
> Labels: resilience
> Fix For: 1.3.0, 1.2.3, 1.0.15
>
>
> With the DocumentStore query API, large result sets can happen; and these are
> returned as List<Document>, potentially causing large amounts of memory to be
> allocated.
> In the current implementation, the result list is generated based on a list
> of internal row presentations (RDBRow). These are currently freed when the
> method finishes. They should be freed as early as possible.
> Furthermore, when the result set gets big, RDBDocumentStore should llog an
> error containing the call chain, so that the component doing the excessive
> query can be identified (it should use paging instead).
> (For completeness: we could also change the code to lazily populate the list;
> but that would be a bigger change)
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