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https://issues.apache.org/jira/browse/OAK-2927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14563461#comment-14563461
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Alex Parvulescu commented on OAK-2927:
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makes perfect sense to skip keeping track of the newIds in the case of a
reindex, good catch!
> ReferenceEditor newIds cosuming lots of memory during migration
> ---------------------------------------------------------------
>
> Key: OAK-2927
> URL: https://issues.apache.org/jira/browse/OAK-2927
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: core
> Reporter: Chetan Mehrotra
> Priority: Minor
> Fix For: 1.3.0, 1.2.3, 1.0.15
>
>
> In a large migration its seen that {{ReferenceEditor}} {{newIds}} can consume
> lots of memory as it records all the uuid property. This system has 33
> million uuid index and the set was consuming ~1.5G of memory
> We should look into ways such that it does not have to maintain such a big in
> memory state
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