Mar 1, 2011 · Maximum concurrent clients is set with the MaxClients option, which is the number you will have to increase if you have zero idle workers. The reason is that Apache tries to keep at least MinSpareServers as idle so they can react immediately, but this will fail if already MacClients server processes exist.

Apache can and will go above or below these configured values. MaxClients is a dead limit, in mpm_prefork's case the limit on the forked workers. As for why you're at 49 idle workers, Apache should only respond to client client load. If this is a recently restarted server then there must be something that chews up workers upon startup.

Aug 25, 2020 · I have a SAAS product built on php along with apache2 and mysql and it has been hosted on AWS. My production is very very slow on peak times and when I check server-status then it says idle workers are 0 (zero) I am using mpm-prefork. Current Time: Monday, 24-Aug-2020 19:36:32 UTC Restart Time: Friday, 14-Aug-2020 06:03:27 UTC Parent Server Config.

May 10, 2016 · There are 3 differnt types of "workers" and I have 3 major problems optimising these: There are three options, prefork, mpm_worker and mpm_event. I don't really understand how to configure them though I do have a general understanding of what each is used for.

Nov 14, 2020 · Generation: 3 Parent Server MPM Generation: 2 Server uptime: 1 day 9 hours 19 minutes 58 seconds Server load: 0.85 0.93 1.04 Total accesses: 931102 - Total Traffic: 17.8 GB CPU Usage: u3289.89 s950.31 cu0 cs0 - 3.53% CPU load 7.76 requests/sec - 155.9 kB/second - 20.1 kB/request 150 requests currently being processed, 0 idle workers

Mar 2, 2011 · As soon as someone makes a request and the web server handles it, it takes one "free" worker = "idle worker" and gives it the connexion. So, depending on your configuration, your may have a "fixed" number of workers, or a variable number of workers in what's called a pool ("a pool of workers"). Checkout Apache MPM

Busy workers; Idle workers; Queued requests ; Monitoring would be done throughout the day, taking a sample every min., in a graphical manner. If such a tool is not available for free, then any script which can dump this data in a tabular format and I can import that data in CSV format would be sufficient. Is there any tool for doing that ?

Jul 16, 2023 · Yesterday, I notice my WP Dashboard is a little slow compared with normal. So I check my Apache status, and find there are only 7 requests are being served, with remaining 193 idle workers. And the server load is also low(0.10, 0.16, 0.24), considering my server has 32 CPUs. So why there will be such slow? Is it normal with so many idle workers?

Oct 6, 2009 · 256 requests currently being processed, 0 idle workers. I'm using 'prefork MPM' <IfModule prefork.c> ServerLimit 2048 StartServers 5 MinSpareServers 5 MaxSpareServers 10 MaxClients 1000 MaxRequestsPerChild 0 </IfModule>

Among a variety of good answers I am marking this as the accepted one because you clearly stated that this was a CPU-bound problem (largely due to the poor application we are running) and that certainly was the case.