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Posted to oak-issues@jackrabbit.apache.org by "Julian Reschke (JIRA)" <ji...@apache.org> on 2015/08/06 15:06:05 UTC
[jira] [Updated] (OAK-3189) CLONE - MissingLastRevSeeker non
MongoDS may fail with OOM
[ https://issues.apache.org/jira/browse/OAK-3189?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Julian Reschke updated OAK-3189:
--------------------------------
Affects Version/s: (was: 1.1.0)
1.0.18
> CLONE - MissingLastRevSeeker non MongoDS may fail with OOM
> ----------------------------------------------------------
>
> Key: OAK-3189
> URL: https://issues.apache.org/jira/browse/OAK-3189
> Project: Jackrabbit Oak
> Issue Type: Task
> Components: core
> Affects Versions: 1.0.18
> Reporter: Julian Reschke
> Assignee: Julian Reschke
> Fix For: 1.1.2
>
>
> This code currently has a hardwired optimization for MongoDB (returning an Iterable over a DBCursor). For all other persistences, a java List of all matching NodeDocuments will be built.
> I see two ways to address this:
> 1) Generalize the Mongo approach, where a query to the persistence can return a live iterator, or
> 2) Stick with the public DS API, but leverage paging (get N nodes at once, and then keep calling query() again with the right starting ID).
> 2) sounds simpler, but is not transactional; [~mreutegg] would that be sufficient?
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