Received: from localhost.localdomain (postgresql.org [64.49.215.8]) by localhost (Postfix) with ESMTP id BAABE476079 for ; Mon, 20 May 2002 21:42:47 -0400 (EDT) Received: from commandprompt.com (unknown [207.173.200.138]) by postgresql.org (Postfix) with ESMTP id 8BC494766DD for ; Mon, 20 May 2002 21:24:42 -0400 (EDT) Received: from home (home [192.168.1.100]) by commandprompt.com (8.11.6/8.11.6) with ESMTP id g4L2PBC00941; Mon, 20 May 2002 19:25:11 -0700 Date: Mon, 20 May 2002 19:25:11 -0700 (PDT) From: "Command Prompt, Inc." To: Cc: Subject: MacOS X Shared Buffers (SHMMAX)? In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Archive-Number: 200205/707 X-Sequence-Number: 24687 Good day, Does anyone have any experience in increasing the amount of shared memory buffers available to Mac OS X/Darwin? When starting with more than 128 backend connections on a test G3 I encounter: ----------------------------------------------------------------------------------- IpcMemoryCreate: shmget(key=5432001, size=33357824, 03600) failed: Invalid argument 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. ----------------------------------------------------------------------------------- However, I can find no helpful information looking around for how Darwin handles this configuration. Hopefully it does not require a recompile of the Kernel. ;) Any knowledge on this topic would be greatly appreciated. Best Regards, Jw. -- jlx@commandprompt.com by way of pgsql-general@commandprompt.com http://www.postgresql.info/ http://www.commandprompt.com/