incrosnatu

This is what Siteground Support told me:

Hello,

I have investigated your case and first I would like to explain what causes the errors you are seeing on your end. These are produced because the server gets overloaded and our built-in monitoring service kicks in at this point and starts killing the processes on the server in order to reduce the load and prevent the server from becoming inaccessible. Here are some of the logs from our monitoring system for the last high load occurrence:

Mar 09 18:51:59 c21556: Critical load (56.07) reached! Killing all php,ftp,smtp,mailnull,archivers procs!
Mar 09 18:52:01 c21556: High load (56.07) reached!
Mar 09 18:52:01 c21556: Critical load (56.07) reached! Killing all php,ftp,smtp,mailnull,archivers procs!
Mar 09 18:52:07 c21556: High load (56.37) reached!
Mar 09 18:52:07 c21556: Critical load (56.37) reached! Killing all php,ftp,smtp,mailnull,archivers procs!
Mar 09 18:52:09 c21556: High load (56.37) reached!
Mar 09 18:52:09 c21556: Critical load (56.37) reached! Killing all php,ftp,smtp,mailnull,archivers procs!
Mar 09 18:52:14 c21556: High load (56.35) reached!

I have checked the server logs and from the suexec log (that logs the script executions on the server) I can see that from 18:51:28 to 18:51:48, which is just 20 seconds, there were 259 script executions for your account. This means that 259 scripts were executed in just 20 seconds, which is quite a large amount and I am afraid that the current amount of server CPU cannot handle it.

For your convenience I have exported the suexec log for that minute in the following file:

/home/sociedel/suexec_logs.txt

If you open that file you will see that almost all of the script executions are for the following script:

/home/sociedel/public_html/wp-content/plugins/onesignal-free-web-push-notifications/sdk_files/OneSignalSDKWorker.js.php

which is part of the plugin you are using on your website to send notifications – onesignal-free-web-push-notifications.

That plugin is the cause of the problems that you are experiencing and in order to resolve the problem you should either stop using that plugin and use an alternative one or consider adding more CPU to the server so that it is able to handle the huge amount of script executions produced by it.

Alternatively you could continue the communication with the developers of the plugin and ask them if there is a way of reducing the script executions that their plugin produces when used as this would also resolve the problem.

If you need any further assistance on our end, please do not hesitate to contact us again.

Best Regards,

Georgi K.
Technical Support Supervisor

I fix what you say me, but this time i did’t have problem with my RAM memory increase, but my site go down again 503 Service Unavailable.

Siteground told my i need more CPU and RAM Memory, i upgraded to 2CPU and 4GB RAM and same problem. If i deactivate OneSignal plugin my website don’t go down.

I have sahifa theme, and i already have lazy load for images. But the problem is with page load, is loading fine, but when you try to acces website for the first time, is loading in 5-6 seconds, and other website 0.5 – 1s. I think is a problem with first byte.