RE: Dual Opteron, linux kernels, 64 bit, mysql 4.1, InnoDB

[Dathan Pattishall]

 

> -----Original Message-----
> From: Richard Dale [mailto:richard@stripped] 
> Sent: Sunday, May 08, 2005 9:37 PM
> To: mysql@stripped
> Subject: Dual Opteron, linux kernels, 64 bit, mysql 4.1, InnoDB
> 
> A new server is about to arrive here and will have have 8x15K 
> RPM spindles, dual Opteron processors and 4GB of RAM, and 
> will have around 100GB of database (primarily stock market 
> prices) - the SCSI controller will also have battery-backed 
> RAM too.  InnoDB will be used exclusively.
> 
> I've searched the list and seen varying reports of which 
> Linux kernels work best etc.
> 
> I'd be intersted to know the following:
> a) Which 64 bit Linux distributions are good for the task?

       Suse 8.1 2.4.21-215-smp #1 SMP Tue Apr 27 16:05:19 UTC 2004
x86_64 unknown

> b) Which 64 bit Linux distributions are bad for the task?

	2.6 the IO sceduler is still messed up.
      RedHat AS / Suse 9.x are messed up as well

> c) Any comments on kernels, particularly with regard to 64 
> bit support and schedulers?  Any problems with the latest 
> kernels (2.6.11 & 2.6.12-rcX)?

> d) Any recommendations for RAID volume setup

Use RAID-10 split the disks evenly across each channel


> e) Any MySQL optimisations for multiple spindles, onboard 
> caching, stripe sizes, RAID5 vs RAID10.

    Don't use RAID5, use Reiser FS if your using SUSE

> f) Any MySQL reliability settings to take into account the 
> battery-backed RAM on the RAID controller?
> 
> I'm happy to collate the responses into a summary too.
> 
> I'm aware of the following discussions which describes a 
> reasonably grunty Dual AMD system with a similar 
> configuration to mine:
> http://meta.wikimedia.org/wiki/Hardware_ordered_April_2005
> http://meta.wikimedia.org/wiki/Hardware_order_May_2004
> 
> Best regards,
> Richard Dale.
> Norgate Investor Services
> - Premium quality Stock, Futures and Foreign Exchange Data for
>   markets in Australia, Asia, Canada, Europe, UK & USA - 
> www.premiumdata.net
> 
> 
> 
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