Re: Error AH03490: scoreboard is full, not at MaxRequestWorkers.Increase ServerLimit

[Mike Dewhirst <miked@xxxxxxxxxxxxxxx>]

On 24/11/2022 6:48 pm, Daniel Ferradal wrote:

> Some
>       script is probably hogging the workers and not letting them close
>       so if you must, just restart, but judging by the amount of traffic
>       you seem to have at the time I would truncate in logrotate and not
>       restart or reload the server at all.
>     
    
    I run a Python script on the production machine to
      delete the entire site (including directory structure) then
      redeploy everything from the repo whenever anything changes. 
      
      On the basis that Apache (mod-wsgi) only reads the files once on
      reload, if they also had the dead finger of my script or perhaps
      the Python interpreter hanging on, that may well have "hogged" the
      workers. 
      
      That script now restarts Apache instead of reload.
      
      I have now adjusted the logrotate script to avoid reload/restart
      logging status as follows:
      
      /var/log/apache2/*.log {
          daily
          missingok
          rotate 14
          compress
          delaycompress
          notifempty
          copytruncate
          sharedscripts
          prerotate
          if [ -d /etc/logrotate.d/httpd-prerotate ]; then
              run-parts /etc/logrotate.d/httpd-prerotate
          fi
          endscript
          postrotate
          if pgrep -f ^/usr/sbin/apache2 > /dev/null; then
              invoke-rc.d apache2 status 2>&1 | logger -t
      apache2.logrotate
          fi
          endscript
      }
      
      
      ... and left the mpm-event settings as follows:
      
      <IfModule mpm_event_module>
              ServerLimit                     32                 #
      Thanks Eric Covener
              StartServers                    16
              MinSpareThreads                 400
              MaxSpareThreads                 250
              ThreadLimit                     64
              ThreadsPerChild                 50
              AsyncRequestWorkerFactor        2
              MaxRequestWorkers               800
              MaxConnectionsPerChild          0
      </IfModule>
      
    I restarted the entire machine
    
    Next logrotate is 00:00 UTC -- I'll report tomorrow.
    
    Cheers
    
    Mike
    
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