Cacti using too much processes after gcc upgrade [solved]

Majed17 · Last edited by Majed17 on Mon Jul 09, 2018 7:37 am; edited 1 time in total

Peace,

eccerr0r · Posted: Thu Jul 05, 2018 2:11 pm Post subject:

Your question isn't clear, what are you trying to point at? Just that there's a lot of apache2 processes spawned?

Did you make any other changes to your apache configuration? Is it still working?

Are you being DDoS'ed? Do you naturally have this much traffic now?

I'd imagine the number of processes shouldn't increase with a gcc change, though the number of threads may (I think GCC is trying to sort of automatically LWT multithread applications now?) However these are processes, which sort of indicates something else happening here.
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Majed17 · Posted: Fri Jul 06, 2018 6:12 am Post subject:

Well earlier to that there was a php upgrade and it required to change the php apache cli and so on to the 7.1 version. That might have something to do with it. I get notifications that there are 229 processes used and after some time it drops to 190's then to way below 130's. I can't be ddos'ed since I have no open ports to the internet on this machine. Adding 4 extra routers to cacti can not possibly cause this spike in cacti.
I have no idea what gcc does except that it is a critical part of the system

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eccerr0r · Posted: Fri Jul 06, 2018 2:04 pm Post subject:

Could you check your apache logs, see what's causing the processes to spawn?

I think /var/log/apache/access_log --

Oh... now I think I understand, are you using net-analyzer/cacti? I was a bit baffled as I don't use this software and your computer was named cacti.

How many people are accessing these webpages, been refreshing the pages a lot in your browser?

Also did an etc-update or change in /etc/apache2/modules.d/00_mpm.conf occur?

In any case, gcc is quite important to Gentoo as it converts what humans write as software to what the computer can actually run. After your computer is fully installed, gcc is actually optional. However for Gentoo, gcc is needed to install upgrades - because it's source-based - so removing it would cause you to lose upgrade abilities. Otherwise there are other Linux distributions that can omit gcc for servers that otherwise has no need for it.
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Intel Core i7 2700K/Radeon R7 250/24GB DDR3/256GB SSD
What am I supposed watching?

Majed17 · Posted: Sat Jul 07, 2018 11:36 am Post subject:

in error_log,
I have this repeating since feb 23

Majed17 · Posted: Mon Jul 09, 2018 7:36 am Post subject:

Today, apache reported that max worker has been reached and graphs are no more! I swisscowed the error and it led to a thorough inspection of the system, there too the first thing to check is ddos attacks. later on I htoped and the maximum cpu using process was mysql. As advised by you, I checked the mysql error log and there was a damaged cacti database demanding a repair. Swisscow led to stackoverflow with a command to repair all databases. After restarting mysql and forcing a check on the number of processes, the system healed up. thank you for your tips.
MysqlTuner is a life saver
credits to this site:
https://globedrill.com/mysql-high-cpu-usage-mysql-process-high-server-load/
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Seek and you shall find, Knock and it shall be opened, cry and you shall find comfort.