[dev] Template Generator with large number of DynamicFields was very slow

Keith Moore tenareth at gmail.com
Wed Aug 21 00:11:57 GMT 2013


Thanks, I submitted my contributor paperwork and will send a request to the
main repo.

-- Keith Moore


On Tue, Aug 20, 2013 at 4:27 PM, McMahon, Mike (HQP)
<mike.mcmahon at rhi.com>wrote:

>  Make a push request to the main git repo?  They might accept it there.
> Anyways – this is an awesome patch and probably an oversight in
> scalability. ****
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> *From:* dev-bounces at otrs.org [mailto:dev-bounces at otrs.org] *On Behalf Of *Keith
> Moore
> *Sent:* Tuesday, August 20, 2013 4:24 PM
> *To:* dev at otrs.org
> *Subject:* [dev] Template Generator with large number of DynamicFields
> was very slow****
>
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> We were taking advantage of the ProcessManagement functionality and using
> a lot of DynamicFields to provide a much more fielded workflow of certain
> functions such as Release Management when we started to notice performance
> of Notifications decline, to the point each notification was taking 6+
> seconds.****
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> After quite a bit of investigation the root cause was in
> TemplateGenerator.pm.  The system loads up every single active
> DynamicField, loads it's Key and Viewable Value and creates a large hash
> that it then cycles through and attempts to do a string replace.  This is
> especially painful since we didn't even use any DynamicFields in our
> response templates.****
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> Therefore I patched ours to find out which fields are needed and only load
> those.  It resolved our performance issue while maintaining the
> functionality.****
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> Providing the patch here, in case you want to include it in a future
> release.****
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> -- Keith Moore****
>
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> * TemplateGenerator.patch<https://docs.google.com/file/d/0B5_W7RGI9GFpUzhJQ3pWLTRnMlE/edit?usp=drive_web>
> *
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