killerben2021-03-04 11:12:48
killerben, 2021-03-04 11:12:48

3 different servers crashed at the same time, what could be the reason?

Hello. If 3 different servers on Centos 7 with Isp manager. I can’t understand why there were falls for 15 minutes at about 6 in the morning.

Server 1: Yandex Metrica recorded a crash yesterday morning at 6:03 am Description of the problem: Failed to process the document, HTTP code: 522. After 12 minutes, it came to life.

Server 2: Hung yesterday at 6:13, the metric fixed Description of the problem: Could not connect to the HTTP server for the same 15 minutes.

Server 3: hung at 6:00 today, posted at 6:15. And in the logs on the site for this period of time there are no records. And the CPU load was 0%.

All servers are backed up, but it should not affect, because it is done at 3 am and only 5-6 minutes.

Servers are powerful:
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Tell me how to identify the cause? What could it be ? I will be grateful for any help.

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2 answer(s)
Ruslan Fedoseev, 2021-03-04

Study server logs

SKEPTIC, 2021-03-04

Dude, it's a hatzner

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