Forum .LRN Q&A: Re: Help Needed in Setting up .LRN to Scale

Posted by mark dalrymple on
I haven't used .LRN, so I can't comment on configuration specifics, but I'd first try some OS utilities to see where the bottleneck is, so you can narrow down the focus of work.

does 'top' on the webserver machines show aolserver chewing a bunch of CPU?  If so, looking to cache things could be a win.

Are the webserver machines i/o bound?  If so, they might be swapping because too much is being cached.

Similarly, on the db machine, see if it is being CPU or i/o bound.  If both sets of machines seem to be relatively idle, then there may be locking issues.  Poking around the oracle data dictionary can show some of that stuff.