Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 51770 invoked from network); 15 Oct 2010 00:06:40 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 15 Oct 2010 00:06:40 -0000 Received: (qmail 50451 invoked by uid 500); 15 Oct 2010 00:06:38 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 50432 invoked by uid 500); 15 Oct 2010 00:06:38 -0000 Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@cassandra.apache.org Delivered-To: mailing list user@cassandra.apache.org Received: (qmail 50424 invoked by uid 99); 15 Oct 2010 00:06:38 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 15 Oct 2010 00:06:38 +0000 X-ASF-Spam-Status: No, hits=-0.0 required=10.0 tests=RCVD_IN_DNSWL_NONE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of rcoli@digg.com designates 209.85.216.44 as permitted sender) Received: from [209.85.216.44] (HELO mail-qw0-f44.google.com) (209.85.216.44) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 15 Oct 2010 00:06:30 +0000 Received: by qwc9 with SMTP id 9so114948qwc.31 for ; Thu, 14 Oct 2010 17:06:10 -0700 (PDT) Received: by 10.224.187.200 with SMTP id cx8mr8770779qab.29.1287101169827; Thu, 14 Oct 2010 17:06:09 -0700 (PDT) Received: from Robert-Colis-MacBook-Pro.local (64-71-7-198.static.wiline.com [64.71.7.198]) by mx.google.com with ESMTPS id j68sm6855325yha.3.2010.10.14.17.06.06 (version=TLSv1/SSLv3 cipher=RC4-MD5); Thu, 14 Oct 2010 17:06:07 -0700 (PDT) Message-ID: <4CB79AED.7030605@digg.com> Date: Thu, 14 Oct 2010 17:06:05 -0700 From: Rob Coli User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.1.12) Gecko/20100824 Thunderbird/3.0.7 MIME-Version: 1.0 To: user@cassandra.apache.org Subject: Re: using too much RAM References: <4CB74510.3010001@real.com> <4CB754F7.2070803@digg.com> <4CB75D86.2080302@real.com> In-Reply-To: <4CB75D86.2080302@real.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit On 10/14/10 12:44 PM, B. Todd Burruss wrote: > >> INFO 16:46:06,875 DiskAccessMode 'auto' determined to be mmap, >> indexAccessMode is mmap > thx, it does say that in the log, but that is probably just a reflection > of whatever is read from cassandra.yaml. Having read the relevant code, the log message is from where Cassandra picks how to try to write and sets the relevant internal variables. It seems unlikely to me that Cassandra would work at all if it was trying to use mmap (as it is) and somehow mmapping was failing, but I am not an expert on how Cassandra might handle this case. =Rob