Re: Installing Informix Online (Solaris 2.5.1)

Jason C Miller wrote: > > Whenever I install informix i get the following error in the online.log: > 12:28:01 mt_shm_init: can't create virtual segment> > Doing it a second time after setting some variables added some more errors: > 14:09:00 shmget: [EEXIST][17]: key 52644801: shared memory already exists > 14:09:00 mt_shm_init: can't create resident segment> > From what I've been told by a number of people, I need to make kernel > modifications to the Solaris 2.5.1 machine to those recommended by > Informix. > > Question is, under a out-of-the-box system, which changes do I need to > make and how do I got about making them? Any advice would be helpful and > appreciated. > I'm not exactly a proficient sysadmin for Solaris and we're not sure > we'll use Informix yet so it isn't worth big problems if that is what > I'm going to face. > > Thanks, > Jason You'll need to make changes to your /etc/system file and reboot for them to take effect. The following is in mine, but you may need to change, based on versions, memory available, etc. THe Informix installatopn doc covers this. Look at the ipcs, ipcrm, and related commands for listing and cleaning up shared memory without rebooting. Informix tends to neglect cleaning up its shared memory when it has trouble starting, then it can't find enough on the next attempt. set shmsys:shminfo_shmmax=268435456 set semsys:seminfo_semmap=64 set semsys:seminfo_semmni=4096 set semsys:seminfo_semmns=4096 set semsys:seminfo_semmnu=4096 set semsys:seminfo_semume=64 set semsys:seminfo_semmsl=100 set shmsys:shminfo_shmmin=1 set shmsys:shminfo_shmmni=100 set shmsys:shminfo_shmseg=100 -Peter