[DRBD-user] read-only access on Secondary for MySQL (InnoDB) Raw Partition?

Josh McAllister josh at bluehornet.com
Wed Jun 23 10:12:30 CEST 2004

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


I'm aware of MySQL's replication... though I've had some problems in the past with replication breaking under various circumstances, and I don't fully trust it. Should I take "I'd not bother" to mean that what I'm asking is not feasible, not reliable, or that it has not been tried?

Thanks,

Josh

> -----Original Message-----
> From: Lars Marowsky-Bree [mailto:lmb at suse.de]
> Sent: Tuesday, June 22, 2004 1:03 AM
> To: Josh McAllister; drbd-user
> Subject: Re: [DRBD-user] read-only access on Secondary for MySQL (InnoDB)
> Raw Partition?
> 
> On 2004-06-21T12:12:02,
>    Josh McAllister <josh at bluehornet.com> said:
> 
> > I understand why we can't do read only access of ext2/3 partitions as we
> > need the file system to recognize that the underlying device is changing
> > even though it's read-only. I'm wondering though if anyone has tried
> > accessing a drbd device from MySQL as an InnoDB raw partition (for
> > read-only of course)? If this can be accomplished it would be a great
> > way to do some load balancing using the secondary machine for selects
> > and the primary for all write operations.
> >
> > Thoughts?
> 
> I'd not bother, as MySQL can do read-only slaves internally and
> consistently in a supported fashion.
> 
> 
> Sincerely,
>     Lars Marowsky-Brée <lmb at suse.de>
> 
> --
> High Availability & Clustering	      \ ever tried. ever failed. no
> matter.
> SUSE Labs			      | try again. fail again. fail better.
> Research & Development, SUSE LINUX AG \ 	-- Samuel Beckett




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