Dan, good guess! Yes, it's the same application for all customers and the two databases are reference information. Unfortunately, customers are running slightly different versions of the application and the reference information is slightly different as well. :-/
I think what I've decided to do is create one instance of MySQL per version of the application. All clients running the same version of the application would use the same instance of MySQL. -----Original Message----- From: Dan Buettner [mailto:[EMAIL PROTECTED] Sent: Monday, June 19, 2006 12:55 PM To: Robinson, Eric Cc: mysql@lists.mysql.com Subject: Re: Server Load Question Eric, I sent you a note about hardware this morning as well, but here's a further thought - Don't know if this is the case, but is this the exact same application served to 100 different customers? And are Database-2 and Database-3 the same for every customer? Some kind of reference info perhaps? If so, split those off into a single "reference" database and share it across all your customers - you'll have an easier time managing MySQL, and you should gain something in performance due to MySQL being able to effectively cache some of the info. Maybe that's not what you've got but thought I'd mention it in case. Dan Robinson, Eric wrote: > I asked this question previously but didn't get much response so I'll > try again. > > Our server will be home to 100 separate clients. Each client will have > their own set of databases that will be accessed by 10-60 users at > each client's site. > > Each client has 3 databases. > > Database-1: 500 tables. 13 tables sized 10-100MB. Remaining tables all > less that 10MB. (This is the only database that is updated. The others > are just for reference.) Main table grows at a rate of a few hundred > MB/year. > > Database-2: 50 tables. 3 tables sized 10-100MB. All other tables less > than 10MB. No data growth. > > Database-3: 179 tables. 10 tables sized 1-15MB. All other tables less > than 1MB. No data growth. > > So... > > Total databses: 300 > Total tables: 72,900 > > Q: In terms of performance, is it better for each customer to have its > own instance of MySQL, each serving 3 databases, or is it better to > have one instance of MySQL serving 300 databases? > > --Eric > > > > > > Disclaimer - June 19, 2006 > This email and any files transmitted with it are confidential and intended solely for [EMAIL PROTECTED] If you are not the named addressee you should not disseminate, distribute, copy or alter this email. Any views or opinions presented in this email are solely those of the author and might not represent those of Physician Select Management (PSM) or Physician's Managed Care (PMC). Warning: Although the message sender has taken reasonable precautions to ensure no viruses are present in this email, neither PSM nor PMC can accept responsibility for any loss or damage arising from the use of this email or attachments. > -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
