Why falling amazon vps?

Hello.
Use amazon aws instances (1GB RAM, 30ssd), installed vestacp (disabled access webpanel and shut down links to phpmyadmin and webmail), installed wordpress and a few plugins with 1 million+ downloads (that is, no slag). A couple of days everything was OK, and today started to fall serv (i.e. periodically for 5-10 min can't go to the site and to the server).

Free RAM (free) 400MB
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April 4th 20 at 13:03
3 answers
April 4th 20 at 13:05
Solution
To look inside, monitor the traffic during peak activity, read logs. It can be seen that the CPU goes to 100% and the loans begin to be used. You may want to take a virtual reality and powerful
That may be true if 2 instance?

here is the answer, resources are provided on a single instance, if you created two instances that the CPU You are allocated one, like it used to be and by the way, if your account is free and You have created two instances with disks 30, then You will take charge is the excess of the limits of free use

and read carefully: even the disk 30 has already exceeded the limit so as to free use is 20
- roselyn_Kun commented on April 4th 20 at 13:08
@roselyn_Kun, complete nonsense. AWS does Not limit in the Free Tier by the number of instances, only by hours - 750 hours t2.micro, if memory does not change (maybe t3.micro is also plugged in, not watching). Same story with drive. Especially since they upgraded to 30Gb (but I checked). As for the processors here man game in General declares by the fact that all virtual resources there, not to mention the fact that you can deplot them not only in different areas, but generally in different parts of the globe. - Derek74 commented on April 4th 20 at 13:11
@roselyn_Kunand suggest correct tags. For this question, the main tag - AWS (Amazon Web Services) - Derek74 commented on April 4th 20 at 13:14
while downloading the pictures to the site serv all disabled, with the status panel 1/2 checks )) - roselyn_Kun commented on April 4th 20 at 13:17
@roselyn_Kun, it is logical to assume that grows and the server load becomes heavy - here Health Check and fails. corny because of 504 Gateway timeout, for example. The solution is to throw VestaCP and learn how to use normal tools for administration - at least Ansible or Chef. If Windows then put Linux faster and easier to configure. To make the database in AWS RDS, Pictures and work with them in AWS S3 - Derek74 commented on April 4th 20 at 13:20
@roselyn_Kun, in principle, if we are to give basic induction for put then apply in person. Money will not take. So for the karma, and that's boring) - Derek74 commented on April 4th 20 at 13:23
plus about RDS and S3. generally it is better to pull a bit of theory (what kind of CPU credits, how does the Free Tier, what is meant by "single core vCPU" in the AWS console, etc.). YouTube - Isai_Frami69 commented on April 4th 20 at 13:26
April 4th 20 at 13:07
Stupidly look at the logs and stop trying to read tea leaves
April 4th 20 at 13:09
I assume, how do you describe the crash is what you will first want to investigate?
Does the kernel panic of a machine or is it not responding (somewhat if the CPU was saturated and overuse)??
Is it SSH authentication, or are it just HTTP applications?
Does the application have any error in the log files (usually found in the /var / log directory) in which the users register?
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