Huge increase in "Broken Pipe" error messages

[alrnetwork]

Hi community,

I've tried reaching DA support directly but sadly, the support I've received from their team hasn't been very helpful, kinda of a "not sure, go figure it out" sort of response.

As of late, all websites on my server running latest DA etc has been presenting random white web pages. Typically, I associate these with 500 server errors and can track down the problem and fix it quite quickly... however, now I'm seeing something totally new and it's VERY random and extremely disruptive.

[Sun Jun 18 21:49:23.706111 2023] [proxy_fcgi:error] [pid 721494:tid 140260741830208] (32)Broken pipe: [remote 123.456.789.100:0] AH01075: Error dispatching request to : (sending empty stdin), referer: https://domain.com/

Obviously the IP address and domain has been substituted, but I've had all sorts of issues because of it. Failed transactions (mid-payment), dropped file uploads, incomplete page requests and all sorts... and I have no idea why it's happening or when it started.

What I do know, is that I haven't modified any PHP configurations for a long time and this has suddenly started happening in the recent weeks (I am guessing).

Does anyone in this community know what is going on here and where I can start looking to fix it? I'm really not sure what to do, and I'm tempted to backup and then drop the entire server and reinstall (hours of work).

Thanks.

 

[Zhenyapan]

Did you check all logs? Mysql/php/domain error logs? Its on all websites or just few? Can you generate/repeat this error (to test changes in configs and immediately check result) or it comes sometimes?

 

[alrnetwork]

1. Checked error logs visible in DA panel and that's where I noticed this error. Can you point me in the direction for other logs which need checking?
2. Seems to be all websites
3. The error presents at random, however, when it occurs, it can be replicated on any domain and under any user

Thanks for your assistance!

 

[Zhenyapan]

from ssh as root check /var/log/ there you can find php/apache/nginx logs

 

[cjd]

Does your server have enough memory(how much does it have)? What kind of sites are they(WordPress?)? Are you seeing PHP memory errors in the web server error logs? If so have you tried to increase the PHP memory settings? Also can be caused by MySQL/MariaDB needing to be optimized, running very slow causing timeouts. That will work for a start, figuring out problems requires more information.