Cannot start httpd container - ap_thread_create: unable to create worker thread

[victorbrca]

I'm having issues starting the httpd container using the image that is provided via the local registry (or via docker.io, but they are the same).

$ podman run -ti --rm docker.io/library/httpd
AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using 10.0.2.100. Set the 'ServerName' directive globally to suppress this message
AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using 10.0.2.100. Set the 'ServerName' directive globally to suppress this message
[Fri Jun 23 20:24:08.733336 2023] [mpm_event:notice] [pid 1:tid 140485412083584] AH00489: Apache/2.4.57 (Unix) configured -- resuming normal operations
[Fri Jun 23 20:24:08.734618 2023] [core:notice] [pid 1:tid 140485412083584] AH00094: Command line: 'httpd -D FOREGROUND'
[Fri Jun 23 20:24:08.734289 2023] [mpm_event:alert] [pid 7:tid 140485412083584] (1)Operation not permitted: AH00480: ap_thread_create: unable to create worker thread
[Fri Jun 23 20:24:08.734109 2023] [mpm_event:alert] [pid 9:tid 140485412083584] (1)Operation not permitted: AH00480: ap_thread_create: unable to create worker thread
[Fri Jun 23 20:24:08.734458 2023] [mpm_event:alert] [pid 8:tid 140485412083584] (1)Operation not permitted: AH00480: ap_thread_create: unable to create worker thread
[Fri Jun 23 20:24:10.737282 2023] [mpm_event:alert] [pid 1:tid 140485412083584] AH02324: A resource shortage or other unrecoverable failure was encountered before any child process initialized successfully... httpd is exiting!

I have looked at the system limits and even increased the VM memory to 2048 MB but no luck. Using an httpd image from Red Hat (registry.redhat.io/rhscl/httpd-24-rhel7) works without issues.

I'm wondering if anyone has experienced this issue?

[unixerius]

I have made updates to this project, making the labs work in 2023.

-> https://github.com/unixerius/EX188-practice

Could you see if the problem persists there?