Re: help newbie with share memory problem

On Wed, 14 Jan 1998, Yan Zhu wrote: > This is my first time installing informix database server, I am not > sure what the problem is. > > I am running sunos 5.5.1 on sun ultra-2. > > Installed informix online 723, everything went fine. > > did all the enviorment variables stuff, did sqlhost and onconfig.learn > file, when I do a oninit, I got: > > oninit: Fatal error in shared memory creation > > Could someone please tell me what this means and how to fix it? Probably you need to add some information to /etc/system and reboot so the kernel knows you want to allow shared memory operations. The bottom of my Sparc 20 /etc/system (running Solaris 2.5.1 or SunOS 5.5.1) reads: * Semaphore set configuration set semsys:seminfo_semmap=64 set semsys:seminfo_semmni=1024 set semsys:seminfo_semmns=1024 set semsys:seminfo_semmnu=1024 set semsys:seminfo_semume=64 * Shared memory configuration (16 MB maximum) set shmsys:shminfo_shmmax=16777216 set shmsys:shminfo_shmmin=100 set shmsys:shminfo_shmmni=100 set shmsys:shminfo_shmseg=100 Look in the machine-specific release notes (release/en_us/0333/...) too. If you've got more than 64MB memory, you might want to increase the max. I tend to limit shared memory to 25% of physical memory -- there was a reason why (maybe performance), but I've forgotten the details. Yours, Jonathan Leffler (johnl@informix.com) #include <witticism.h>