[Building Sakai] Slow startup on Sakai 10

[Matthew Jones]

Yeah, this property appears to be safe to set everywhere. On an SSD with
the full Sakai install I usually have startups at around a 2 minutes with
this option (on an existing database), 5 without.


On Tue, Mar 4, 2014 at 7:03 AM, Steve Swinsburg
<steve.swinsburg at gmail.com>wrote:

> Of course this should only be done on a development machine, your mileage
> may vary, may need to be adjusted, not to be included in the release notes
> yet, etc etc.
>
>
>
> On 4 Mar 2014, at 10:43 pm, Steve Swinsburg <steve.swinsburg at gmail.com>
> wrote:
>
> I've been doing this for a while and blogged about it a while back:
>
> http://steveswinsburg.wordpress.com/2012/11/06/reduce-your-sakai-cle-startup-time/
>
> My startup time cuts in half. To do this, in catalina.properties, set:
>
>
> org.apache.catalina.startup.ContextConfig.jarsToSkip=*.jar
>
> cheers,
> Steve
>
>
> On 4 Mar 2014, at 8:03 pm, Matthew Buckett <matthew.buckett at it.ox.ac.uk>
> wrote:
>
> We've been working on moving to Sakai 10 and I've been noticing that
> compared to our 2.8.x installation the Sakai 10 codebase takes much longer
> to startup. My tomcat startup can regularly take 5 minutes when everything
> is getting loaded. I hooked up YourKit and watched the startup (attached is
> the CSV trace).
>
> org.apache.catalina.startup.ContextConfig.processAnnotations(Set, boolean)
> is taking 60% of the startup time!!
>
> Processing annotations is know to be slow and the recommendation from
> Apache is that to improve startup speed some JARs/webapps are not scanned:
>
> http://wiki.apache.org/tomcat/HowTo/FasterStartUp
>
> As most of the webapps were developed for servlet 2.4 I imagine that we
> aren't using annotations very much so could probably disable scanning of
> almost all webapps without any issue and get back to Sakai 2.8.x startup
> times.
>
> Has anyone else looked into this any more?
>
> --
>   Matthew Buckett, VLE Developer, IT Services, University of Oxford
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