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From "Michael Dick (JIRA)" <>
Subject [jira] Closed: (OPENJPA-180) Batch Update support needed for OpenJPA performance
Date Thu, 18 Sep 2008 16:46:44 GMT


Michael Dick closed OPENJPA-180.

    Resolution: Fixed

This issue was fixed under OPENJPA-464 (if not before then). 

> Batch Update support needed for OpenJPA performance
> ---------------------------------------------------
>                 Key: OPENJPA-180
>                 URL:
>             Project: OpenJPA
>          Issue Type: Bug
>    Affects Versions: 0.9.0, 0.9.6, 0.9.7, 1.0.0, 1.1.0
>         Environment: All
>            Reporter: John Stecher
> After doing some more performance testing on OpenJPA using a variety of primitive benchmarks
I have noticed that it lags competitors significantly in performance in scenarios that stress
multiple updates inside of a single transaction.  Obviously almost every application server
out there today overcomes this by implementing some sort of batch update feature and I would
almost consider it a bug that OpenJPA does not have this support as it appears that Hibernate
and Toplink both do as do most J2EE vendors CMP 2.X containers.
> I would say that the ramifications of not shipping batch update support would be fairly
huge from both a JPA performance perspective but also from the more costly backend database
perspective where typically CPU cycles are far more limited than on the application server
machine.  Looking at most complex applications in the market place today and realizing almost
all of them need this support to some degree I want this JIRA to drive that feature into OpenJPA.
 Given the fact so many legacy containers and persistence engines have support for it, I consider
it a bug that OpenJPA does not have it already.
> Always open for thoughts.  Just started looking at this so I am not sure if it has been
brought up in the past but does anyone have ideas or implementation prototypes that we could
work together to build? 

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