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https://issues.apache.org/jira/browse/SOLR-8586?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15137272#comment-15137272
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Joel Bernstein commented on SOLR-8586:
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I think there would need to be a system of truth involved, which there often
is. The steps would be:
1) Check the hashes.
2) If hashes differ find the difference in id's.
3) Refetch Id's from the system of truth. Streaming data from the system of
truth is easily done with streams like the JdbcStream which streams data from a
relational database.
> Implement hash over all documents to check for shard synchronization
> --------------------------------------------------------------------
>
> Key: SOLR-8586
> URL: https://issues.apache.org/jira/browse/SOLR-8586
> Project: Solr
> Issue Type: Improvement
> Components: SolrCloud
> Reporter: Yonik Seeley
> Fix For: 5.5, Trunk
>
> Attachments: SOLR-8586.patch, SOLR-8586.patch, SOLR-8586.patch,
> SOLR-8586.patch
>
>
> An order-independent hash across all of the versions in the index should
> suffice. The hash itself is pretty easy, but we need to figure out
> when/where to do this check (for example, I think PeerSync is currently used
> in multiple contexts and this check would perhaps not be appropriate for all
> PeerSync calls?)
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