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https://issues.apache.org/jira/browse/OAK-9052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17101789#comment-17101789
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Thomas Mueller commented on OAK-9052:
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I added a "file size over time" diagram. It looks like there are two spikes at
the beginning, and then it stays within 1 MB. Compacting is done every minute,
I think that's fine, except that it's not needed if the file is smaller than 10
MB.
> Reindexing using --doc-traversal-mode may need a lot of memory
> --------------------------------------------------------------
>
> Key: OAK-9052
> URL: https://issues.apache.org/jira/browse/OAK-9052
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: indexing, mongomk
> Reporter: Thomas Mueller
> Assignee: Thomas Mueller
> Priority: Major
> Attachments: fileSizeOverTime.png
>
>
> Indexing using oak-run and --doc-traversal-mode uses the FlatFileStore. For
> aggregation, there is a limit on memory usage, by default around 100 MB.
> Depending on the content structure, this limit can be exceeded.
> It would be good to find a way to avoid a memory limit, for example using a
> temporary storage (a file, or a persistent key/value store).
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