Red Hat Satellite Capsule server stops responding with `AH03490: scoreboard is full, not at MaxRequestWorkers.Increase ServerLimit.` error in httpd logs

Issue

• Capsule stops responding after a while with AH03490: scoreboard is full error.

• Client hosts registered to the affected Capsule encounter timeout errors when running dnf:

  .
  .  https://capsule.example.com/pulp/content/ORG/LFCE/ccv_generic_rhel7_soe_auto/content/els/rhel/server/7/7Server/x86_64/os/repodata/repomd.xml: [Errno 12] Timeout on https://capsule.example.com/pulp/content/ORG/LFCE/ccv_generic_rhel7_soe_auto/content/els/rhel/server/7/7Server/x86_64/os/repodata/repomd.xml: (28, 'Connection timed out after 30001 milliseconds')
  Trying other mirror.
  .
  .
  

• Restarting Satellite services on the affected Capsule temporary resolves the issue for some time, then the issue re-occurs.

• The following error is recurring in the httpd error log /var/log/httpd/error_log on the affected Capsule:

  [Tue Oct 28 08:53:05.964590 2025] [mpm_event:error] [pid 2052989:tid 140478153193792] AH03490: scoreboard is full, not at MaxRequestWorkers.Increase ServerLimit.