On Wed, Apr 13, 2011 at 1:42 PM, Richard Yen <[email protected]> wrote:
> Well, I noticed that when the log gets large and it's in the middle of a > logswitch, load on the origin node will increase and subsequent to that, all > subscriber nodes will lag up to 900sec. This seems troublesome, considering > that nodes in my cluster typically don't lag for more than 10sec--it's only > during these logswitch events that they lag by so much. > I never noticed that, even when I had my db's on spinning media. It was never correlated with log switch. The only times I got lag was when I had a *lot* of update/insert activity in a very very short period. Might I suggest that the cause/effect is the other way around? Perhaps you are just hitting your I/O throughput limit for your hardware.
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