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https://issues.apache.org/jira/browse/OAK-1264?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Dürig resolved OAK-1264.
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Resolution: Later
> Avoid duplicating shared content in backup
> ------------------------------------------
>
> Key: OAK-1264
> URL: https://issues.apache.org/jira/browse/OAK-1264
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: segment-tar
> Reporter: Jukka Zitting
> Priority: Major
> Labels: backup, operations
>
> The backup feature from OAK-1159 is currently unable to detect cases where
> the same binary or some other piece of shared content is referenced from two
> or more places in the content tree, and ends up duplicating such content in
> the backup.
> It would be nice if the backup could automatically detect such cases and
> avoid the extra duplicates. See the {{testSharedContent}} test case in
> {{FileStoreBackupTest}}.
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