We have a 192M journal, and from the dmesg log it's saying that it's got a 5
second flush interval, so I can't imagine that the journal is filling, but
we'll try it and see I guess.
What I don't understand is why the spike is so sudden, and decays so slowly.
It's Friday night now, so the load is fairly low. I setup a loop to dump
uptime information every 10 seconds and attached the result below. It's
running smoothly, then 'bam', it's hit with something big, which then slowly
decays off.
A few extra things:
1. It happens every couple of minutes or so, but not exactly on any time, so
it's not a cron job or anything
2. Viewing 'top', there are no extra processes obviously running when it
happens
Rob
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