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https://issues.apache.org/jira/browse/SOLR-9506?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15523564#comment-15523564
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Pushkar Raste commented on SOLR-9506:
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I think what [~ichattopadhyaya] is hinting at, is that if {{numDocs}} account
only for live (active) docs, then once documents are deleted in a segment,
{{numDocs}} in the cached fingerprint might be wrong.
Surprising, following test cases passed with my POC
1. {{PeerSyncTest}}
2. {{PeerSyncReplicationTest}}
3. {{SyncSliceTest}}
In the worst case, we can atleast parallalize fingerprint computation.
> cache IndexFingerprint for each segment
> ---------------------------------------
>
> Key: SOLR-9506
> URL: https://issues.apache.org/jira/browse/SOLR-9506
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Noble Paul
> Attachments: SOLR-9506_POC.patch
>
>
> The IndexFingerprint is cached per index searcher. it is quite useless during
> high throughput indexing. If the fingerprint is cached per segment it will
> make it vastly more efficient to compute the fingerprint
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