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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 resolved SOLR-5193.
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Resolution: Fixed
I think I've got some decent coverage here:
https://cwiki.apache.org/confluence/display/solr/Updating+Parts+of+Documents
I moved what little info there was in the ref guide out of the page about index
handlers and into its own page that covers both atomic updates and optimistic
concurrency.
Suggestions or corrections welcome.
> 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
> Fix For: 4.5
>
>
> 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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