Hi!
I use row based replication, and in some (rather rare) circumstances the slave lags behind. Since I use a mechanical disk and the cpu load is low I assume that the disk is the bottleneck.
However, when enabling parallel replication the performance doubled. This surprised me, and seems to indicates that mysql didn’t manage to fully utilize the disk with one thread. Can anyone help me shed some light on this?
/Magnus Jäverberg
I use row based replication, and in some (rather rare) circumstances the slave lags behind. Since I use a mechanical disk and the cpu load is low I assume that the disk is the bottleneck.
However, when enabling parallel replication the performance doubled. This surprised me, and seems to indicates that mysql didn’t manage to fully utilize the disk with one thread. Can anyone help me shed some light on this?
/Magnus Jäverberg