Op 30-01-15 om 19:40 schreef Gordon Messmer:
On 01/30/2015 01:21 AM, Patrick Bervoets wrote:
iostat random sample
"Random" is difficult to evaluate. Is that representative? Are sda, sdb, and
sdc typically less than 1% utilized? Or are there large utilization values right after a
hang?
All the output was in the same scale and during a hang in an other shell.
Does the time displayed by "atop" eventually catch up?
Not that I know. But I gave up :-)
Does the problem persist across reboots?
Alas, one of the vm's is our production database. My next update/reboot window
is next saturday. But I had the problem just before the last reboot (halfway
january).
But hadn't closely monitored it afterwards.
Before - in december - I never experienced it. But it's a server I tend do
leave alone, so I'm never very busy on a shell.
Is this system running ntpd?
yes
Does the problem persist if you turn ntpd off and reboot?
_
I'll check that next week.
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