Apache 2.4 in Ubuntu 14.04 uses the mpm_event as the default MPM. Thus, when you want to use the prefork MPM, which is the default of the Apache 2 cookbook, Apache can't restart, because it can't switch MPMs during restart. A solution will be needed from the Apache 2 cookbook (discussed in https://github.com/onehealth-cookbooks/apache2/issues/187 and https://github.com/onehealth-cookbooks/apache2/issues/236). Until then, the solution is to change the default MPM of the Apache 2 cookbook to mpm_event.
Apache 2.4 in Ubuntu 14.04 uses the mpm_event as the default MPM. Thus, when you want to use the prefork MPM, which is the default of the Apache 2 cookbook, Apache can't restart, because it can't switch MPMs during restart. A solution will be needed from the Apache 2 cookbook (discussed in https://github.com/onehealth-cookbooks/apache2/issues/187 and https://github.com/onehealth-cookbooks/apache2/issues/236). Until then, the solution is to change the default MPM of the Apache 2 cookbook to mpm_event.

PLOS/alm_report-cookbook,PLOS/alm_report-cookbook,lagotto/alm_report-cookbook,articlemetrics/alm_report-cookbook,lagotto/alm_report-cookbook,articlemetrics/alm_report-cookbook