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https://issues.apache.org/jira/browse/SOLR-18189?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Smiley resolved SOLR-18189.
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Fix Version/s: 10.1
9.11
Assignee: David Smiley
Resolution: Fixed
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> Improve tracking of duplicate Solr docs with content hash
> ---------------------------------------------------------
>
> Key: SOLR-18189
> URL: https://issues.apache.org/jira/browse/SOLR-18189
> Project: Solr
> Issue Type: New Feature
> Reporter: Francois Huaulme
> Assignee: David Smiley
> Priority: Major
> Labels: pull-request-available
> Fix For: 10.1, 9.11
>
> Time Spent: 2h 40m
> Remaining Estimate: 0h
>
> Content hash detection aims to improve update efficiency by identifying and
> bypassing redundant document updates. By detecting instances where content
> remains unchanged, the URP chain skips unnecessary write operations to reduce
> CPU and I/O overhead on nodes by skipping operations done in downstream URPs.
> The implementation offers flexibility through a "monitor-only" mode, where
> duplicate occurrences are tracked via metrics without triggering immediate
> update discards. This approach provides detailed insights into document
> duplication levels within Solr data.
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