Cheers Jakob
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Hi, we are running a primary/secondary cluster which hosts a zarafa
database (among other things). The hardware and network (dedicated dual
bonded GBit) should be fast enough and in fact, when the machines are in
sync we have no performance problems whatsoever. However, when we need
to resync the volumes, the read (!) performance of the MySQL database
(all innodb) drops drastically. As this happens only on resync, I wonder
where this behavior might come from. We already reduced the syncer rate
to absurd values (like 100 kB/s) and still get high IOWaits on the
primary as soon as the syncing starts. At 100kbit/s I think I can rule
out the disks as bottleneck or am I wrong there?
- [DRBD-user] MySQL performance breakdown during resync to se... Jakob Curdes
- Re: [DRBD-user] MySQL performance breakdown during res... Brent Clark
- Re: [DRBD-user] MySQL performance breakdown during res... Lars Ellenberg
