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https://issues.apache.org/jira/browse/OAK-3559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14989631#comment-14989631
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Marcel Reutegger commented on OAK-3559:
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In my view it would make the DS contract simpler and also simplify the Commit
class, which is already complex. So, my preference is indeed a DS which does
its best to create or update the documents as requested. I think it should only
fail with an exception when something goes wrong communicating with MongoDB.
> Bulk document updates
> ---------------------
>
> Key: OAK-3559
> URL: https://issues.apache.org/jira/browse/OAK-3559
> Project: Jackrabbit Oak
> Issue Type: Sub-task
> Components: core, documentmk, mongomk
> Reporter: Tomek Rękawek
> Fix For: 1.4
>
>
> The {{DocumentStore#createOrUpdate(Collection, UpdateOp)}} method is invoked
> in a loop in the {{Commit#applyToDocumentStore()}}, once for each changed
> node. Investigate if it's possible to implement a batch version of the
> createOrUpdate method, using the MongoDB [Bulk
> API|https://docs.mongodb.org/manual/reference/method/Bulk/#Bulk]. It should
> return all documents before they are modified, so the Commit class can
> discover conflicts (if they are any).
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