Habratopik written during an energy disaster
Around 9:12 in the morning, massive electricity outages began in Gelendzhik and its suburbs (for example, in Kabardinka).
Before an amateur IP radio broadcast server died, one of the local networkers managed to hearin “Europe +” that there was no light in a large part of Novorossiysk - this was due to some kind of accident.
Darkly contemplating how the logins of the connected users disappear one by one from the IRC chat contacts panel (ping timeout, ping timeout, ping timeout, ping timeout ...), I was soberly aware that after a while the reserves of fuel in the backup diesel power sources would run out, run out of energy in the UPS providers, cut down Internet connection.
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Fortunately, the electricity supply was resumed in a little less than fifteen minutes.In any case, I, in Gelendzhik; ready to admit that the fate of Novorossiysk turned out to be somewhat more unpleasant.
However, all servers with an autonomous power supply (or just a shutdown timer) that were designed for a shorter period (for example, 10 minutes), were regularly logged off and did not respond. Especially amateur.
During the recording of this habratopic, the light above the head went out once more (one and a half minutes) and turned on again. Now, when I send this habratopik to Habr, the electricity is again finished and it’s gone again for about ten minutes. I see that today will not be energetically boring. Know: if today on Habré there will be much less of my habratopikov and comments, it is not onlybecause of karma.
Most of all in this story, I sincerely feel sorry for all those people who have a computer turned off by a timer set to N minutes after the moment of power cut. For example, UPS lasts for twenty minutes - and the computer shuts down after fifteen. But when there is no electricity at first thirteen minutes, and then another thirteen, then the UPS reserve does not have time to recover between power cuts, so that at the second shutdown the computer will be cut down before the timer has time to calculate its time limit. This is regrettable.
And for what period is the energy reserve and the shutdown timer of your servers calculated, habrazhitel?
Before an amateur IP radio broadcast server died, one of the local networkers managed to hear
Darkly contemplating how the logins of the connected users disappear one by one from the IRC chat contacts panel (ping timeout, ping timeout, ping timeout, ping timeout ...), I was soberly aware that after a while the reserves of fuel in the backup diesel power sources would run out, run out of energy in the UPS providers, cut down Internet connection.
')
Fortunately, the electricity supply was resumed in a little less than fifteen minutes.
However, all servers with an autonomous power supply (or just a shutdown timer) that were designed for a shorter period (for example, 10 minutes), were regularly logged off and did not respond. Especially amateur.
During the recording of this habratopic, the light above the head went out once more (one and a half minutes) and turned on again. Now, when I send this habratopik to Habr, the electricity is again finished and it’s gone again for about ten minutes. I see that today will not be energetically boring. Know: if today on Habré there will be much less of my habratopikov and comments, it is not only
Most of all in this story, I sincerely feel sorry for all those people who have a computer turned off by a timer set to N minutes after the moment of power cut. For example, UPS lasts for twenty minutes - and the computer shuts down after fifteen. But when there is no electricity at first thirteen minutes, and then another thirteen, then the UPS reserve does not have time to recover between power cuts, so that at the second shutdown the computer will be cut down before the timer has time to calculate its time limit. This is regrettable.
And for what period is the energy reserve and the shutdown timer of your servers calculated, habrazhitel?
Source: https://habr.com/ru/post/54792/
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