Thread: Issue with OS X
Hi, I am trying to install postgresql 8 on a G5 OS X machine and cannot get past this error i have tried changing the shared buffer with no luck. Error message: /usr/local/pgsql/data postgres$ FATAL: could not create shared memory segment: Invalid argument DETAIL: Failed system call was shmget(key=5432001, size=10338304, 03600). HINT: This error usually means that PostgreSQL's request for a shared memory segment exceeded your kernel's SHMMAX parameter. You can either reduce the request size or reconfigure the kernel with larger SHMMAX. To reduce the request size (currently 10338304 bytes), reduce PostgreSQL's shared_buffers parameter (currently 1000) and/or its max_connections parameter (currently 100). If the request size is already small, it's possible that it is less than your kernel's SHMMIN parameter, in which case raising the request size or reconfiguring SHMMIN is called for. The PostgreSQL documentation contains more information about shared memory configuration.
You will need to modify your shared memory settings or change your shared_buffers parameter in the postgresql.conf file. (Most likely need to increase SHMMAX as the default for OSX is quite low as I recall) Take a look here: http://www.postgresql.org/docs/8.0/static/kernel-resources.html There is a section on MacOSX about half way down the page HTH Adam > Hi, > I am trying to install postgresql 8 on a G5 OS X machine and cannot get > past this error i have tried changing the shared buffer with no luck. > > Error message: > /usr/local/pgsql/data postgres$ FATAL: could not create shared memory > segment: Invalid argument > > DETAIL: Failed system call was shmget(key=5432001, size=10338304, 03600). > > HINT: This error usually means that PostgreSQL's request for a shared > memory segment exceeded your kernel's SHMMAX parameter. You can either > reduce the request size or reconfigure the kernel with larger SHMMAX. > To reduce the request size (currently 10338304 bytes), reduce > PostgreSQL's shared_buffers parameter (currently 1000) and/or its > max_connections parameter (currently 100). > > If the request size is already small, it's possible that it is > less than your kernel's SHMMIN parameter, in which case raising the > request size or reconfiguring SHMMIN is called for. > > The PostgreSQL documentation contains more information about > shared memory configuration. > > > ---------------------------(end of broadcast)--------------------------- > TIP 9: the planner will ignore your desire to choose an index scan if your > joining column's datatypes do not match -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.