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Posted to dev@jackrabbit.apache.org by Martijn Hendriks <ma...@gx.nl> on 2008/10/09 10:21:02 UTC
FineGrainedISMLocking
Hi all,
We are thinking about using the FineGrainedISMLocking strategy in a production environment for performance reasons. The last comment on the related issue (http://issues.apache.org/jira/browse/JCR-314) worries us, however. It says: "Please note that there are still some open synchronization issues when using FineGrainedISMLocking!"
Has anyone used this strategy in a production environment already, and what are these synchronization issues?
Thanks!
Martijn
--
Martijn Hendriks
<GX> creative online development B.V.
t: 024 - 3888 261
f: 024 - 3888 621
e: martijnh@gx.nl
Wijchenseweg 111
6538 SW Nijmegen
http://www.gx.nl/
RE: FineGrainedISMLocking
Posted by Martijn Hendriks <ma...@gx.nl>.
Hi Marcel,
Thanks for your answer! It's good to hear that those other issues have been resolved. It is likely that we'll try the fine grained locking strategy for production, but before that we will run an number of load and/or stress tests. If we find other issues we'll share them :)
Best regards
Martijn
> -----Original Message-----
> From: Marcel Reutegger [mailto:marcel.reutegger@gmx.net]
> Sent: Thursday, October 16, 2008 9:10 AM
> To: dev@jackrabbit.apache.org
> Subject: Re: FineGrainedISMLocking
>
> Hi Martijn,
>
> when I wrote the FineGrainedISMLocking and used it instead of the
> default
> implementation when running tests, it uncovered a couple of
> synchronization
> issues within other parts of jackrabbit-core. those issues are all
> resolved. but
> there might still be potential synchronization issues that we didn't
> uncover.
>
> regards
> marcel
>
>
> Martijn Hendriks wrote:
> > Hi all,
> >
> > We are thinking about using the FineGrainedISMLocking strategy in a
> production environment for performance reasons. The last comment on the
> related issue (http://issues.apache.org/jira/browse/JCR-314) worries
> us, however. It says: "Please note that there are still some open
> synchronization issues when using FineGrainedISMLocking!"
> > Has anyone used this strategy in a production environment already,
> and what are these synchronization issues?
> >
> > Thanks!
> >
> > Martijn
> >
> > --
> >
> > Martijn Hendriks
> > <GX> creative online development B.V.
> >
> > t: 024 - 3888 261
> > f: 024 - 3888 621
> > e: martijnh@gx.nl
> >
> > Wijchenseweg 111
> > 6538 SW Nijmegen
> > http://www.gx.nl/
> >
> >
> >
Re: FineGrainedISMLocking
Posted by Marcel Reutegger <ma...@gmx.net>.
Hi Martijn,
when I wrote the FineGrainedISMLocking and used it instead of the default
implementation when running tests, it uncovered a couple of synchronization
issues within other parts of jackrabbit-core. those issues are all resolved. but
there might still be potential synchronization issues that we didn't uncover.
regards
marcel
Martijn Hendriks wrote:
> Hi all,
>
> We are thinking about using the FineGrainedISMLocking strategy in a production environment for performance reasons. The last comment on the related issue (http://issues.apache.org/jira/browse/JCR-314) worries us, however. It says: "Please note that there are still some open synchronization issues when using FineGrainedISMLocking!"
> Has anyone used this strategy in a production environment already, and what are these synchronization issues?
>
> Thanks!
>
> Martijn
>
> --
>
> Martijn Hendriks
> <GX> creative online development B.V.
>
> t: 024 - 3888 261
> f: 024 - 3888 621
> e: martijnh@gx.nl
>
> Wijchenseweg 111
> 6538 SW Nijmegen
> http://www.gx.nl/
>
>
>