+1. Thats a very good idea Chris. I think we have some performance numbers as well to back our facts.
On Wed, Dec 4, 2013 at 11:12 AM, Chris Mattmann <[email protected]> wrote: > Thanks Saminda. My point was maybe grabbing that text below and then > sending to [email protected] and/or [email protected] and letting > them know they may be able to help you guys. > > Cheers, > Chris > > > > -----Original Message----- > From: Saminda Wijeratne <[email protected]> > Reply-To: "[email protected]" <[email protected]> > Date: Wednesday, December 4, 2013 11:09 AM > To: "[email protected]" <[email protected]> > Subject: Re: Jackrabbit vs OpenJPA > > >Adding to what Raman said, we noticed a exponential-like drop in > >performance when extracting the data from a JackRabbit repository when > >adding more and more data. JackRabbit was chosen earlier because we > >wanted to persist the descriptors for the gateway. > > No of descriptors in the repository did not grow over time (other than > >occasional new descriptor when needed). Then we wanted to persist the > >workflow template (which can be a large document) and the experiment > >results. Issue was that experiment results grow > > over time and we noticed the exponential increase in data retrieval time > >to a point noticeable to a user (eg: XBaya would just freeze). > > > > > >Thus we started experimenting with using direct use of RDBMs instead and > >found it did not become slow drastically and had more control over > >picking and choosing the exact data to retrieve. > > > > > > > > > > > > > > > >On Wed, Dec 4, 2013 at 8:00 AM, Chris Mattmann > ><[email protected]> wrote: > > > >Hey Guys, > > > >May be worth passing some of that along to the JackRabbit community? > > > >Cheers, > >Chris > > > > > > > >-----Original Message----- > >From: Raminder Singh <[email protected]> > >Reply-To: "[email protected]" <[email protected]> > >Date: Wednesday, December 4, 2013 7:50 AM > >To: "[email protected]" <[email protected]> > >Subject: Re: Jackrabbit vs OpenJPA > > > >> > >> > >> > >>Hi Sachith, > >> > >> > >>Airavata requirement was to persist job descriptors, state, metadata etc. > >> We saw lot of over head using Jackrabbit, may be lot of > >>serialization/de-serialization going on. Jackrabbit is good for content > >>repository/management but when we were try to access > >> the content from remote machines using RMI protocol, it was really > >>getting slow. Lahiru may have more details about this. > >> > >> > >>Thanks > >>Raminder > >> > >>On Dec 4, 2013, at 3:11 AM, Sachith Withana <[email protected]> wrote: > >> > >> > >>Hi all, > >> > >> > >>Can someone please explain to me why you made the switch from Jackrabbit > >>to OpenJPA? > >>I'm curious of why you did that. > >> > >> > >>-- > >>Thanks,Sachith Dhanushka Withana > >> > >> > >> > >> > >> > >> > >> > >> > >> > >> > > > > > > > > > > > > > > > > > > > > >
