techstan Posted May 3, 2007 Posted May 3, 2007 Anyone else having any issues with the Tomcat memory leak ? apparantly its a known issue an *should* be fixed in the next release of eportal but it doesent appear to be affecting everyone as its not been classed as a major issue, so for now am just reboot the admin server now and again just wondering tho if anyone else has this an if its having much of an effect on performance of eportal / cmis ?
limbo Posted May 3, 2007 Posted May 3, 2007 We had terrible problems with this - and the advice we had was to put more memory in, which just meant it took longer for the leak to take hold. We now use IIS for dishing eportal out and all of these kinds of problems seem to be solved and the performance overall is very good - it dishes our the inconsistent and incorrect pages much quicker than it used to and without the daily / weekly reboot.
GeorgeFaux Posted May 3, 2007 Posted May 3, 2007 I was going to say a scheduled services restart and clearing out the audit log seem to be the thing until they fix it.
tosca925 Posted May 3, 2007 Posted May 3, 2007 We now use IIS for dishing eportal out and all of these kinds of problems seem to be solved and the performance overall is very good - it dishes our the inconsistent and incorrect pages much quicker than it used to and without the daily / weekly reboot. Did you do this yourself or did you/the school have help to go to IIS?
limbo Posted May 3, 2007 Posted May 3, 2007 @tosca925 - the LEA did it for us through remote support - hence not being entirely sure what was invovled.
tosca925 Posted May 3, 2007 Posted May 3, 2007 What sort of symptons/errors where you getting to come to the solution it was a memory leak?
limbo Posted May 4, 2007 Posted May 4, 2007 The longer the system was running for the slower it got - reboot the services and everything was fine. I think the problem was that when it opened a connection it never really closed it or released the memory associated with that connection. We increased the memory in the server (to lots and lots) and the same thing would happen, but over a longer time frame - so reboot once a week rather than once a day.
techstan Posted May 7, 2007 Author Posted May 7, 2007 We had terrible problems with this - and the advice we had was to put more memory in, which just meant it took longer for the leak to take hold. We now use IIS for dishing eportal out and all of these kinds of problems seem to be solved and the performance overall is very good - it dishes our the inconsistent and incorrect pages much quicker than it used to and without the daily / weekly reboot. oh what excellent advice they do give us lets not fix the problem just waste money extending how long it takes b4 you have to do the next reboot perhapse i should inquire about changing it to IIS i think this is also affecting my backups as the memory leak prevents the backup from running due to the insufficent memory #-o over night thus casuing even more problems thanks for the advice
limbo Posted May 7, 2007 Posted May 7, 2007 perhapse i should inquire about changing it to IIS i think this is also affecting my backups as the memory leak prevents the backup from running due to the insufficent memory over night thus casuing even more problems Do you run eportal on the same server as the CMIS install? If so then it really is worth splitting it out accross two servers - one for CMIS one for eportal. If not then is there anything on the eportal server that needs backing up? Other than a few settings files and perhaps student pictures - none of which changes very often or takes up much room - it is probably as the original install and not really worth backing up. We do not back up our eportal server here - all the important data is on the CMIS box.
tosca925 Posted May 7, 2007 Posted May 7, 2007 We do not back up our eportal server here Is this wise?
limbo Posted May 7, 2007 Posted May 7, 2007 Why is it not wise to back up the eportal server - there is no data on it and it can be reinstalled in a matter of minutes?
AndyCope Posted May 8, 2007 Posted May 8, 2007 You would need to back-up the webapps/eportal/conf folder and the images folders as these contain any customised xml - ie two week timetables etc etc and student photos etc
limbo Posted May 8, 2007 Posted May 8, 2007 @AndyCope - I have copies of all these files on another server which I do everytime I do an upgrade - but they never ever change so there is no need to do a daily or even weekly backup of the eportal server - particularly considering the problems many of you are still having with eportal.
Lee_K_81 Posted May 8, 2007 Posted May 8, 2007 @all Ok this has kinda popped up here but you mind listing (in your opinion) pro's and cons of single or seperate installations please. Single: Pros: Quicker upgrades Less network traffic Runs faster Cons: Greater strain on server Memory leaks Problems with ePortal could affect CMIS usage Seperate: Pros: Can use a lower spec machine Can restart eportal server without any affect of CMIS Cons: Slower Network overheads / traffic Slower upgrades
limbo Posted May 8, 2007 Posted May 8, 2007 I currently have a two server setup - and it was necessary for a while because of the resources eportal used up. But now I would consider going back to a powerful single server setup for all the advantages you listed above - but at the moment it works and I do not want to mess with it.
Lee_K_81 Posted May 8, 2007 Posted May 8, 2007 I currently have a two server setup - and it was necessary for a while because of the resources eportal used up. But now I would consider going back to a powerful single server setup for all the advantages you listed above - but at the moment it works and I do not want to mess with it. lol, you still using the LA issue compaq for eportal? we are. Seriously considering upgrading to a HP DL360 3GHz Dual Core, 4GB Ram to host CMIS and eportal. Has a spare slot for another processor if it starts to show strain.
limbo Posted May 8, 2007 Posted May 8, 2007 lol, you still using the LA issue compaq for eportal? we are. I think that server lasted about three weeks - we have two Dual Processor DL360's - one for CMIS and one for eportal which is a bit overkill now the problems are sorted but for a time it was the only way we could keep it running for more than a few hours without a reboot.
Lee_K_81 Posted May 8, 2007 Posted May 8, 2007 lol, you still using the LA issue compaq for eportal? we are. I think that server lasted about three weeks - we have two Dual Processor DL360's - one for CMIS and one for eportal which is a bit overkill now the problems are sorted but for a time it was the only way we could keep it running for more than a few hours without a reboot. eek. Slightly worried that my single processor DL360 wont be enough. Although at the moment CMIS is on a 3GHz single processor 2GB Ram DC running DNS. DHCP, Network monitoring sw, staff user areas, staff shared drivel etc..... eportal is on a 900 MHz 750MB Ram "server" ( - sarcasm intended). Hopefully the step up will be noticable (and appreciated)
limbo Posted May 8, 2007 Posted May 8, 2007 Single Processor should be enough - it is memory that seems to be the issue - but when I bought the server nobody really knew what the problem was with eportal.
Kained Posted May 8, 2007 Posted May 8, 2007 Drive speed and memory are the keys to success more mem fast drive(raid)
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