When starting up Apache with mod cluster, by command:

[hudson@perf10 httpd]$ /usr/sbin/apachectl -k start -d /tmp/hudson/httpd

It refuses to start, but creates files in logs one-by-one and then when all files are created it accepts to start.

[hudson@perf10 httpd]$ cat logs/error_log
[Tue Jan 05 12:01:11 2010] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Tue Jan 05 12:01:11 2010] [notice] Digest: generating secret for digest authentication ...
[Tue Jan 05 12:01:11 2010] [notice] Digest: done
[Tue Jan 05 12:01:11 2010] [emerg] create_mem_node /tmp/hudson/httpd/logs/manager.node failed
Configuration Failed
[Tue Jan 05 12:01:37 2010] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Tue Jan 05 12:01:37 2010] [notice] Digest: generating secret for digest authentication ...
[Tue Jan 05 12:01:37 2010] [notice] Digest: done
[Tue Jan 05 12:01:37 2010] [emerg] create_mem_context failed
Configuration Failed
[Tue Jan 05 12:02:40 2010] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Tue Jan 05 12:02:40 2010] [notice] Digest: generating secret for digest authentication ...
[Tue Jan 05 12:02:40 2010] [notice] Digest: done
[Tue Jan 05 12:02:40 2010] [emerg] create_mem_host failed
Configuration Failed
[Tue Jan 05 12:04:43 2010] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Tue Jan 05 12:04:43 2010] [notice] Digest: generating secret for digest authentication ...
[Tue Jan 05 12:04:43 2010] [notice] Digest: done
[Tue Jan 05 12:04:43 2010] [emerg] create_mem_balancer failed
Configuration Failed
[Tue Jan 05 12:04:44 2010] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Tue Jan 05 12:04:44 2010] [notice] Digest: generating secret for digest authentication ...
[Tue Jan 05 12:04:44 2010] [notice] Digest: done
[Tue Jan 05 12:04:44 2010] [emerg] create_mem_sessionid failed
Configuration Failed
[Tue Jan 05 12:04:45 2010] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Tue Jan 05 12:04:45 2010] [notice] Digest: generating secret for digest authentication ...
[Tue Jan 05 12:04:45 2010] [notice] Digest: done
[Tue Jan 05 12:04:45 2010] [emerg] create_mem_domain failed
Configuration Failed
[Tue Jan 05 12:04:46 2010] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Tue Jan 05 12:04:46 2010] [notice] Digest: generating secret for digest authentication ...
[Tue Jan 05 12:04:46 2010] [notice] Digest: done
[Tue Jan 05 12:04:46 2010] [notice] Advertise initialized for process 1713
[Tue Jan 05 12:04:46 2010] [notice] Apache/2.2.3 (Red Hat) configured – resuming normal operations

The configuration is here:
https://svn.devel.redhat.com/repos/jboss-qa/load-testing/etc/httpd/mod_cluster/

Is there a workaround? What might be causing this?