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https://issues.apache.org/jira/browse/SOLR-5193?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cassandra Targett reassigned SOLR-5193:
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Assignee: Cassandra Targett
> Need better docs about Atomic Updates + Optimistic Concurrency
> --------------------------------------------------------------
>
> Key: SOLR-5193
> URL: https://issues.apache.org/jira/browse/SOLR-5193
> Project: Solr
> Issue Type: Improvement
> Components: documentation
> Reporter: HeXin
> Assignee: Cassandra Targett
> Priority: Minor
>
> Atomic Update features are mentioned in passing in the Ref Guide, but not
> explained as well as on the wiki (and doesn't refer to it as "atomic updates"
> so it's hard to find)
> https://cwiki.apache.org/confluence/display/solr/Uploading+Data+with+Index+Handlers#UploadingDatawithIndexHandlers-UpdatingOnlyPartofaDocument
> https://wiki.apache.org/solr/Atomic_Updates
> In particula, The Optimistic Concurrency options on atomic updatesare not
> really documented at all.
> ---
> (Initial issue description requested a "check" option that could be used on
> the uniqueKey field when doing atomic updates that would cause hte updated to
> fail if the uniqueKey specified did not exist -- but this type of feature is
> not needed since we already support the equivilent optimisitic concurrency
> garuntees )
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