We're seeing some lsphp4 and lsphp5 process that seem to be hanging around for a long time and consuming a lot of resources. I'm assuming that it's ok to just kill off those processes and more of them will be spawned as needed?
BTW, their parent process is 1 which leads more to my theory that they are orphaned processes.
Yes, you can kill them off. They are orphaned processes.
Before killing them, please try to exam those processes with strace or gdb "attach". I want to make sure it is not in a infinite loop inside our LSAPI code.