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https://issues.apache.org/jira/browse/SOLR-9506?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15599045#comment-15599045
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David Smiley commented on SOLR-9506:
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bq. Parallel streams in use a shared fork-join pool. A bad actor can create
havoc.
Interesting. FWIW I found this solution:
http://stackoverflow.com/a/22269778/92186 -- create a custom ForkPointPool that
you execute within. Definitely non-obvious.
> 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.patch, SOLR-9506.patch, SOLR-9506.patch,
> SOLR-9506.patch, SOLR-9506_POC.patch, SOLR-9506_final.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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