A droplet hosting Magento 2 with apache was working fine for a long time. But since yesterday it has become unresponsive. When I ssh'ed into the machine and checked the server, I saw that apache has spawned >100 child processes while not having that much client req. load (this is only a testing site i.e. it is not live to customers). If anyone came across the issue, can you share with me your thoughts on how you overcame the issue (or any feedback on how to debug it will also be great)?

Thanks in advance