What the engine remembers is its start time, and what onstat displays as "Up" time simply is the difference between that and current time.
Not much indeed depends on that start time, so I'd agree with Art there probably won't be any problems arising from this calculation.
Things might be slightly different wrt. the gap that will have occurred when waking a live engine from such artificial OS sleep - quite a few things do depend on time of day and e.g. distance to events of the past, but I think most of these would quickly adjust to the new time and forget or not even notice any gap. (It might be quite different if waking the system with the system clock turned back into the past.)
BR,
Andreas
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Andreas Legner
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Original Message:
Sent: Mon February 12, 2024 06:43 AM
From: Art Kagel
Subject: DIfferent uptime from Informix and OS
Ondrej:
The difference in "uptime" should not make any difference or have any effect on the Informix instance. The reported uptime is for you. The engine does not care how long it has been online.
Art
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Art S. Kagel, President and Principal Consultant
ASK Database Management Corp.
www.askdbmgt.com
Original Message:
Sent: Mon February 12, 2024 02:15 AM
From: Ondřej Žižka
Subject: DIfferent uptime from Informix and OS
Hello,
This is not an issue for me now, just a question if anybody has already seen that and what your experience is...
I was playing a bit with the Informix server, and because I expected the Informix would have been destroyed, I created a VM snapshot. After some time I restored the VM snapshot and saw that Informix uptime is higher than the OS uptime.
Informix is running, I can connect, I can read data, but may it cause any issues? Checkpoints? Warm restores?
Restart of the database will solve the "issue", but in this situation... May it cause any harm to any database process?
Thank you
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Ondrej
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