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I had the following settings in /etc/sysctl.conf before Catalina:
# PostgreSQL Config for the MAC
kern.sysv.shmmax=2147483648
kern.sysv.shmall=524288
kern.sysv.shmmin=1
kern.sysv.shmmni=32
kern.sysv.shmseg=8
kern.maxprocperuid=1024
kern.maxproc=2048
The Catalina install moved this file to the /Users/Shared folder as /etc is now considered private to macOS.
Are these settings still relevant for Catalina, and if so, where do they need to go?
Thx.
You don't need the shared memory parameters any more, because PostgreSQL has been using POSIX shared memory for a while now.
Making sure that the PostgreSQL user can have enough open files is a good idea though.
I ran into the same issue. I put the file back (at /etc/sysctl.conf) and it worked just like before (at least for setting kern.maxvnodes).
