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https://issues.apache.org/jira/browse/OAK-9754?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Reschke updated OAK-9754:
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Fix Version/s: (was: 1.48.0)
> Increase default dump threshold for multithreaded download
> ----------------------------------------------------------
>
> Key: OAK-9754
> URL: https://issues.apache.org/jira/browse/OAK-9754
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: indexing
> Reporter: Yu-An Lin
> Priority: Major
>
> Looking at the detailed log output of indexing job using Oak with
> Multi-Threaded Download Strategy, lots of small files are being created
> because we have a low dump threshold of 1MB per file.
> [https://github.com/apache/jackrabbit-oak/blob/trunk/oak-run-commons/src/main/java/org/apache/jackrabbit/oak/index/indexer/document/flatfile/FlatFileNodeStoreBuilder.java#L91]
>
> We should increase the threshold if possible to even larger to 16 MB instead,
> that way we have 16 MB, with 8 threads that is 128 MB. This would (hopefully)
> reduce the number of files from 22'972 to 1'435, which is more more
> reasonable. Also, I don't think it would bring any risk of out-of-memory.
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