On Tuesday 16 January 2001 02:54, Joseph Bueno wrote:
> Hello,
>
> Problem description:
> I have posted several emails to this list during the last few
> days because of mysqld crashes and index corruptions. After
> upgrading from 3.22.32 to 3.23.30 server crashes have
> disappeared but with still had index corruptions (between one
> and two tables corrupted every two hours).
>
> Workaround:
> I have rebooted the server in single-processor mode and there
> was NO index corruption in the last 24 hours (although the server
> was even more loaded than during previous days: between 300
> and 350 queries/s).
>
> Hardware platform :
> Dell PowerEdge 2450 bipro PIII/733,
> 2Gb RAM,
> integrated hardware RAID crontroller (PERC3)
Uh, oh. This might be the problem. We had "issues" with data corruption
with filesystems when we had a dual processor system with a DAC 960 RAID
controller. I think the PERC series might be a rebranded DAC card. We had
to get the newest drivers off of the net, recompile the kernel with them and
rebuild a lot of data :-( One of our servers is sensitive enough that we
just run it in UP mode instead of SMP.
The systems ran just fine until we hit a certain type and level of load. We
haven't tried to create it on demand yet.
> with 2x18Gb disks configured
> in RAID1 (mirroring) mode.
>
> Operating system:
> Linux RedHat 6.2 (kernel 2.2.14 SMP)
>
> MySQL version:
> 3.23.32 from binary RPM (MySQL-3.23.30-1.i386.rpm)
>
I don't know that MySQL has that much to do with it in this case.
Best,
Kyle
--
Kyle Hayes
Quicknet Technologies t: +1 415 864 5225
520 Townsend St. Suite D f: +1 415 864 8388
San Francisco, CA 94103 w: http://www.quicknet.net
USA
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