Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 89601 invoked from network); 27 Aug 2010 03:55:07 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 27 Aug 2010 03:55:07 -0000 Received: (qmail 69140 invoked by uid 500); 27 Aug 2010 03:55:06 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 69003 invoked by uid 500); 27 Aug 2010 03:55:03 -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 68990 invoked by uid 99); 27 Aug 2010 03:55:02 -0000 Received: from Unknown (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 27 Aug 2010 03:55:02 +0000 X-ASF-Spam-Status: No, hits=0.0 required=10.0 tests=FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of jbellis@gmail.com designates 209.85.214.44 as permitted sender) Received: from [209.85.214.44] (HELO mail-bw0-f44.google.com) (209.85.214.44) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 27 Aug 2010 03:54:42 +0000 Received: by bwz9 with SMTP id 9so1966657bwz.31 for ; Thu, 26 Aug 2010 20:54:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:mime-version:received:in-reply-to :references:from:date:message-id:subject:to:content-type :content-transfer-encoding; bh=/yZHLxwTsp0D0/SiMmWG5aGrxOrO7IcyRXeAFqzXsVA=; b=WNwboYTOvds09p6eOkvLirQ75DSWN6GeGOSSiQ7RztUF3ZrSwo/muwSqc9dU5e0lPg n78+kDPJ2sSJlGFan4FWR+N/u3BkmLMJ1azrRdvRN1R6TJhKYwlXYzv/plaB3nFid+eG wg+F8bjl9mpiCiyCKldjmFEYleo/dd5OqwlfE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type:content-transfer-encoding; b=mjH0Q1Woq3vBc1cau8/ZO+2YPqdfwWSXxTmDlPNE2M2ArEGz58SC1iba9Lv93kG7g2 4jZt7veDKaBHT5RXIZHNxVfDDerJww8Wz6pQF6OrL9AxAm/w0VNwB1R4t3H6rT/LycKE 4FXF9OVvDgqLlras/fMlDhqmVHVC/bgrPyc/w= Received: by 10.204.59.136 with SMTP id l8mr81545bkh.84.1282881261405; Thu, 26 Aug 2010 20:54:21 -0700 (PDT) MIME-Version: 1.0 Received: by 10.204.126.86 with HTTP; Thu, 26 Aug 2010 20:54:01 -0700 (PDT) In-Reply-To: References: <4C73E568.4030704@cs.tu-berlin.de> From: Jonathan Ellis Date: Thu, 26 Aug 2010 22:54:01 -0500 Message-ID: Subject: Re: Follow-up post on cassandra configuration with some experiments on GC tuning To: user@cassandra.apache.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Virus-Checked: Checked by ClamAV on apache.org added CMSInitiatingOccupancyFraction=3D80 for 0.6.6 and 0.7beta2 On Thu, Aug 26, 2010 at 9:57 PM, Benjamin Black wrote: > imo, these should be part of the defaults. > > On Tue, Aug 24, 2010 at 8:29 AM, Mikio Braun wrot= e: >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> Dear all, >> >> thanks again for all the comments I got on my last post. I've played a >> bit with different GC settings and got my Cassandra instance to run >> very nicely with 8GB of heap. >> >> I summarized my experiences with GC tuning in this follow-up post: >> >> http://blog.mikiobraun.de/2010/08/cassandra-gc-tuning.html >> >> - -M >> >> - -- >> Dr. Mikio Braun =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0email: mi= kio@cs.tu-berlin.de >> TU Berlin =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0web= : ml.cs.tu-berlin.de/~mikio >> Franklinstr. 28/29 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 tel: +49 30 3= 14 78627 >> 10587 Berlin, Germany >> >> >> >> -----BEGIN PGP SIGNATURE----- >> Version: GnuPG v1.4.9 (GNU/Linux) >> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ >> >> iEYEARECAAYFAkxz5WcACgkQtnXKX8rQtgDiiwCeLknuTcr65eehwIcsivInjv4W >> LaQAn3RY9pH19r8SuUhVBvtE6LeyFUvB >> =3DMYsY >> -----END PGP SIGNATURE----- >> > --=20 Jonathan Ellis Project Chair, Apache Cassandra co-founder of Riptano, the source for professional Cassandra support http://riptano.com