Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 9286 invoked from network); 14 Oct 2010 19:08:06 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 14 Oct 2010 19:08:06 -0000 Received: (qmail 60174 invoked by uid 500); 14 Oct 2010 19:08:04 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 60160 invoked by uid 500); 14 Oct 2010 19:08:04 -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 60151 invoked by uid 99); 14 Oct 2010 19:08:04 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 14 Oct 2010 19:08:04 +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 (nike.apache.org: domain of rcoli@digg.com designates 209.85.213.44 as permitted sender) Received: from [209.85.213.44] (HELO mail-yw0-f44.google.com) (209.85.213.44) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 14 Oct 2010 19:07:55 +0000 Received: by ywa6 with SMTP id 6so3085878ywa.31 for ; Thu, 14 Oct 2010 12:07:34 -0700 (PDT) Received: by 10.150.220.18 with SMTP id s18mr3972582ybg.5.1287083254428; Thu, 14 Oct 2010 12:07:34 -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 z10sm5366501anj.14.2010.10.14.12.07.32 (version=TLSv1/SSLv3 cipher=RC4-MD5); Thu, 14 Oct 2010 12:07:32 -0700 (PDT) Message-ID: <4CB754F7.2070803@digg.com> Date: Thu, 14 Oct 2010 12:07:35 -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> In-Reply-To: <4CB74510.3010001@real.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org On 10/14/10 10:59 AM, B. Todd Burruss wrote: > 0.7.0-beta2 > > top is reporting my cassandra process as using 11g. i have set > "disk_access_mode: standard" and Xmx8G (verified via JMX) > > i have only noticed using more RAM than Xmx when using mmap i/o. this > leads me to believe that disk_access_mode was not set properly, even > though it is in the config. is there a way to verify this via JMX? (or > some other way) There is a log message at startup which will tell you the DiskAccessMode and IndexAccessMode in use. It looks like.. INFO 16:46:06,875 DiskAccessMode 'auto' determined to be mmap, indexAccessMode is mmap =Rob