Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 1951 invoked from network); 27 May 2010 20:01:57 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 27 May 2010 20:01:57 -0000 Received: (qmail 11924 invoked by uid 500); 27 May 2010 20:01:56 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 11902 invoked by uid 500); 27 May 2010 20:01:56 -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 11894 invoked by uid 99); 27 May 2010 20:01:56 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 27 May 2010 20:01:56 +0000 X-ASF-Spam-Status: No, hits=-0.7 required=10.0 tests=RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: local policy) Received: from [216.32.180.15] (HELO VA3EHSOBE005.bigfish.com) (216.32.180.15) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 27 May 2010 20:01:45 +0000 Received: from mail189-va3-R.bigfish.com (10.7.14.239) by VA3EHSOBE005.bigfish.com (10.7.40.25) with Microsoft SMTP Server id 8.1.340.0; Thu, 27 May 2010 20:01:22 +0000 Received: from mail189-va3 (localhost.localdomain [127.0.0.1]) by mail189-va3-R.bigfish.com (Postfix) with ESMTP id 9C737114016D for ; Thu, 27 May 2010 20:01:22 +0000 (UTC) X-SpamScore: -6 X-BigFish: VPS-6(zz14ffOzz1202hz4fhzz32i2a8h43h65h) X-Spam-TCS-SCL: 4:0 Received: from mail189-va3 (localhost.localdomain [127.0.0.1]) by mail189-va3 (MessageSwitch) id 1274990482565480_30204; Thu, 27 May 2010 20:01:22 +0000 (UTC) Received: from VA3EHSMHS025.bigfish.com (unknown [10.7.14.246]) by mail189-va3.bigfish.com (Postfix) with ESMTP id 59B0F1150046 for ; Thu, 27 May 2010 20:01:22 +0000 (UTC) Received: from ausb3extmailp01.amd.com (163.181.251.8) by VA3EHSMHS025.bigfish.com (10.7.99.35) with Microsoft SMTP Server (TLS) id 14.0.482.44; Thu, 27 May 2010 20:01:20 +0000 Received: from ausb3twp01.amd.com ([163.181.250.37]) by ausb3extmailp01.amd.com (Switch-3.2.7/Switch-3.2.7) with SMTP id o4RJl0YY007202 for ; Thu, 27 May 2010 14:47:03 -0500 X-WSS-ID: 0L33GY3-01-FDP-02 X-M-MSG: Received: from sausexhtp02.amd.com (sausexhtp02.amd.com [163.181.3.152]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (No client certificate requested) by ausb3twp01.amd.com (Tumbleweed MailGate 3.7.2) with ESMTP id 289E7102854C for ; Thu, 27 May 2010 15:01:14 -0500 (CDT) Received: from SAUSEXMBP01.amd.com ([163.181.3.198]) by sausexhtp02.amd.com ([163.181.3.152]) with mapi; Thu, 27 May 2010 15:01:15 -0500 From: "Jones, Nick" To: "user@cassandra.apache.org" Date: Thu, 27 May 2010 15:01:14 -0500 Subject: Large column/row inserts Thread-Topic: Large column/row inserts Thread-Index: Acr911x+REbXoXRsTUy0AE41mEpqvw== Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Reverse-DNS: unknown X-Virus-Checked: Checked by ClamAV on apache.org Hi everyone, I'm using the Cassandra gem and have been trying to optimize inserting 400k= -1M columns per row. I'm currently batching 1k column inserts and see abou= t 130ms response times; however, every 19th insert takes 3.3s. Can anyone = think of a reason for this? Thanks. Nick Jones