Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 62348 invoked from network); 2 Feb 2011 23:04:26 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 2 Feb 2011 23:04:26 -0000 Received: (qmail 13731 invoked by uid 500); 2 Feb 2011 23:04:24 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 13685 invoked by uid 500); 2 Feb 2011 23:04:24 -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 13677 invoked by uid 500); 2 Feb 2011 23:04:24 -0000 Delivered-To: apmail-incubator-cassandra-user@incubator.apache.org Received: (qmail 13674 invoked by uid 99); 2 Feb 2011 23:04:24 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 02 Feb 2011 23:04:24 +0000 X-ASF-Spam-Status: No, hits=2.0 required=5.0 tests=SPF_NEUTRAL,URI_HEX X-Spam-Check-By: apache.org Received-SPF: neutral (athena.apache.org: 216.139.236.26 is neither permitted nor denied by domain of potekhin@bnl.gov) Received: from [216.139.236.26] (HELO sam.nabble.com) (216.139.236.26) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 02 Feb 2011 23:04:19 +0000 Received: from jim.nabble.com ([192.168.236.80]) by sam.nabble.com with esmtp (Exim 4.69) (envelope-from ) id 1Pkljy-0007YK-P3 for cassandra-user@incubator.apache.org; Wed, 02 Feb 2011 15:03:58 -0800 Date: Wed, 2 Feb 2011 15:03:58 -0800 (PST) From: buddhasystem To: cassandra-user@incubator.apache.org Message-ID: <1296687838767-5986911.post@n2.nabble.com> In-Reply-To: References: Subject: Re: Cassandra memory needs MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Oleg, I just wanted to add that I confirmed the importance of that "rule of thumb" the hard way. I created two extra CFs and was able to reliably crash the nodes during writes. I guess for the final setting I'll rely on results of my testing. But it's also important to not cause the swap death of your machine (i.e. when you go too high on JVM memory). Regards Maxim -- View this message in context: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Cassandra-memory-needs-tp5986663p5986911.html Sent from the cassandra-user@incubator.apache.org mailing list archive at Nabble.com.