On Tue, Oct 23, 2007 at 10:06:08PM +0200, Oliver Fromme wrote: > Oliver Peter wrote: > > Does anybody have a running system with more than one jail hosting > > more than one postgres server? > > Yes, you must configure them to use different port numbers, > because the SysV IPC IDs are derived from the port number. > If you try to run both servers with the default port, you'll > get a conflict. Configure different port numbers, and it > will work.
Thanks for that hint. After changing the port numbers for each instance to a different one, it works - but only at first glance. After making some test creates and inserts to all servers at the same time I receive the 'out of memory' messages again... Different UIDs, different ports, same error. > By the way, the PostgreSQL developers do _not_ recommend to > run multiple servers on the same machine, because of bad > efficiency. It is much better (performance-wise) to run > all databases within the same server engine. PostgreSQL > has all the authentication and permission features you need > to separate multiple databases within a single server, so > there is really no need to use multiple jails. Of course I understand that. But I would like to setup a test server in a different jail beside my production jail/pgsql-server to be sure not to crash my production server. Performance does not matter (at this time in this specific case of course!). > I have these on a machine with a single PostgreSQL server, > as per recommendations of the developers: > > options SHMMAXPGS=65536 > options SEMMAP=1024 > options SEMMNI=64 > options SEMMNS=1024 > options SEMUME=64 > options SEMMNU=128 Is this a good recommendation for a machine with only 1GB of RAM? -- Oliver PETER, eMail: [EMAIL PROTECTED], ICQ# 113969174 "Worker bees can leave. Even drones can fly away. The Queen is their slave."
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