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https://issues.apache.org/jira/browse/GEODE-5487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16575310#comment-16575310
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Darrel Schneider edited comment on GEODE-5487 at 8/9/18 9:25 PM:
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Do you understand what caused your "dramatically decrease application 
performance"?

Have you confirmed that changing it to be at the region level dramatically 
improved performance?

I think it is possible that when read conflicts are detected it could cause 
concurrent transactions that read the same entry to fail with a conflict 
exception even though the entry was never written. If this is true then that 
would be a bug and should be fixed even if this feature request does not happen.

See: https://issues.apache.org/jira/browse/GEODE-5557 


was (Author: dschneider):
Do you understand what caused your "dramatically decrease application 
performance"?

Have you confirmed that changing it to be at the region level dramatically 
improved performance?

I think it is possible that when read conflicts are detected it could cause 
concurrent transactions that read the same entry to fail with a conflict 
exception even though the entry was never written. If this is true then that 
would be a bug and should be fixed even if this feature request does not happen.

 

> Choice of detect read conflict on transaction commit on a per-region basis.
> ---------------------------------------------------------------------------
>
>                 Key: GEODE-5487
>                 URL: https://issues.apache.org/jira/browse/GEODE-5487
>             Project: Geode
>          Issue Type: Improvement
>          Components: docs, transactions
>            Reporter: Eugene Nedzvetsky
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 1h
>  Remaining Estimate: 0h
>
> Geode supports detect read conflict(-Dgemfire.detectReadConflicts=true) on 
> transaction commit(see 
> https://geode.apache.org/docs/guide/11/developing/transactions/transaction_semantics.html)
> This functionality can be enabled only on application level. It can 
> dramatically decrease application performance.
> I propose to add ability to setup this property per region basis.



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