Forum .LRN Q&A: Anybody experiencing memory leaks?
We'll keep everyone posted.
Thanks. What do you mean by similar? What's the max memory consumption you've observed so far?
It's production. http://www.robs.org. This is used by River Oaks Baptist School in Houston for all their students, teachers and even parents. Almost all features are being used and it's safe to say that it gets a fair amount of hits per day because the students are being trained batch by batch on a per classroom(?) level.
Does testing on devux1 behave similarly on liveux1? Maybe you can just pound some robs pages on devux1 with ab. It may be not dotLRN specific. The pg driver may also be not the latest, try upgrading. Are the other 7.2.x sites running ok?
This is very exciting. The site looks great from the outside. :) Having an 5th grader myself I've often thought about the potential for dotLRN in primary education.
I'm sure many people would be interested in how the UI and functionality is being used in the K-12 environment and any case study on how students of different ages are using it and parent/school communication would be wonderfull.
Is there anyone at the school who would be willing to serve as a reference when other K-12 schools express interest?
This is fabulous. Congratulations. Keep us apprised of how the site evolves. The following types of community applications, linking parents, students, and teachers, is very exciting:
"In the future, you will be able to create a calendar for your family that details your child's or children's activities and homework assignments. You will also be able to become part of certain online community groups within the school."
Which hardware are you using to support dotLRN there?
Processors, RAM, MHz, several computers or just one, same computer for PG and Aolserver or several servers?
We are very interested in how many hardware it's needed to serve a school.
Could you explain to an uninformed what is a K-12 environment or a K-12 school?
Will start testing on non-dotlrn sites but pg7.2 sites first so that we can isolate. Ham is already doing that.
Thanks. Regarding your question about reference, I'll bring that up and will post here again for their answer.
Thanks. I would say that the future goal would really be seamless integration. Will just keep you updated on developments into the site. I'll try and get permission to set up a guest account so that others can also browse the dotlrn specific stuff.
I'm not exactly sure on the hardware specs. Jun Yamog should know as he coordinated the purchase of that. I think it's a dual proc Pentium III 500 with 1GB RAM. But since they are still on their "learning stage" and hits are only of fair amount, both AOLserver and PG are housed inside the same box. Of course there are plans to change the structure if ever the need for it comes in the future.
Nope I did not coordinate the purchase of that server. It was purchased before I got to II. I just basically fixed the server, reinstall Linux and friends, config the server, transported it to a data center and put it in a rack and got the 2nd CPU running.
Its an old VA Linux back in the days VA wasn't much that known yet. Dual P3 500 - Katmai core only. 1GB Ram, 4 Atlas IV on RAID 5 config. Still running RH 6.2. The server also has other OpenACS sites and some plain aolserver sites.
It did handle the several OpenACS sites well. OpenACS sites just tend to eat RAM, not much CPU.