Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id ED073200CE6 for ; Thu, 17 Aug 2017 01:59:36 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id EB232168118; Wed, 16 Aug 2017 23:59:36 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id 3A33E166F95 for ; Thu, 17 Aug 2017 01:59:36 +0200 (CEST) Received: (qmail 56255 invoked by uid 500); 16 Aug 2017 23:59:34 -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 56245 invoked by uid 99); 16 Aug 2017 23:59:34 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd1-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 16 Aug 2017 23:59:34 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd1-us-west.apache.org (ASF Mail Server at spamd1-us-west.apache.org) with ESMTP id 3FDF1C61EF for ; Wed, 16 Aug 2017 23:59:33 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd1-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 2.479 X-Spam-Level: ** X-Spam-Status: No, score=2.479 tagged_above=-999 required=6.31 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=2, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RCVD_IN_SORBS_SPAM=0.5, SPF_PASS=-0.001] autolearn=disabled Authentication-Results: spamd1-us-west.apache.org (amavisd-new); dkim=pass (2048-bit key) header.d=instaclustr-com.20150623.gappssmtp.com Received: from mx1-lw-eu.apache.org ([10.40.0.8]) by localhost (spamd1-us-west.apache.org [10.40.0.7]) (amavisd-new, port 10024) with ESMTP id j7fzJRA3INPL for ; Wed, 16 Aug 2017 23:59:30 +0000 (UTC) Received: from mail-qt0-f170.google.com (mail-qt0-f170.google.com [209.85.216.170]) by mx1-lw-eu.apache.org (ASF Mail Server at mx1-lw-eu.apache.org) with ESMTPS id 56B9A5FBBA for ; Wed, 16 Aug 2017 23:59:29 +0000 (UTC) Received: by mail-qt0-f170.google.com with SMTP id p3so29709553qtg.2 for ; Wed, 16 Aug 2017 16:59:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=instaclustr-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=bFnLe353uaC9/RfhOyCErA8I04HsVEHbJoWyAEeIi+U=; b=Gs/sEUGbyN65ialafmh8lcb18VjJeJJInYjhz+awQZtHY+oUyc6XMB3GBoAiTn9OIC xTBfpSTaEzaAc4wHCW+YyzvfmBB/8PtVWUK/vcZ8DIZQybOCjfK1swsJtoqVxjc/NmW4 MkxlTHkhzorVG0XK9kxx7Ph2UDzznEEMBrZwam1L7+v7QG2yIYWX7K2saMX4h1JckZdO ongRUzsHpj/WvrgYTYl7ti6pGfsoszdba203Yt1SjD5gYENUY8Fgmn0f1ezCEQOqIMVN jvo5hXOR3qyvR1Bf/VUiuNu/nullsMjWZx4TVTLalQi9M6eJuEwU9DBtF8aNXuP3wY7M 08VQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=bFnLe353uaC9/RfhOyCErA8I04HsVEHbJoWyAEeIi+U=; b=CizFJS6t3SYfgwQc8O12VEMUSS4yRyJikRJFx9g7d5+lqx6Lhyz3IriCfZIZT4J5R2 LexnFN6+amRaHxAb9U8eq+tIUR0+4cjMnwJVMN9gsni3Mn3ct4D9kTzhKKDQyheCJifb j5uH4XQhM0cRNFBc6hgpKdJPT4Q280ujhNuRt6JJkmqHagSADX4CgQIAzzMQBQxNi7N/ HHuartbUt6APBZ48bmh4V0d8FpWHWUhSxDuZP4Ce33zj0JkX2y2GwLNzziNsnjJgKo8O cI84T8JqZGKOGYk7CTe9uuq69Vh1/PzE98sDY+LdLG0EMPG7Jr5NMaMO5ou/VG8f9k3J Mwtw== X-Gm-Message-State: AHYfb5jmRgJwKO0NmEufcdkZ2GEnpnAKJwebdi6QXOzIyPttSHJhSnfc tXO+AGjGgJkZZ8ng35zpl4UZmQeMz3mzb/o= X-Received: by 10.200.3.80 with SMTP id w16mr5003772qtg.325.1502927967367; Wed, 16 Aug 2017 16:59:27 -0700 (PDT) MIME-Version: 1.0 Received: by 10.12.164.102 with HTTP; Wed, 16 Aug 2017 16:59:27 -0700 (PDT) In-Reply-To: References: From: Christophe Schmitz Date: Thu, 17 Aug 2017 09:59:27 +1000 Message-ID: Subject: Re: Cassandra Writes Duplicated/Concatenated List Data To: user@cassandra.apache.org Content-Type: multipart/alternative; boundary="f4030435b7489e461e0556e7af31" archived-at: Wed, 16 Aug 2017 23:59:37 -0000 --f4030435b7489e461e0556e7af31 Content-Type: text/plain; charset="UTF-8" Hi Nathan, The code may occasionally write to the same row multiple times. > > Can you run a test using IF NOT EXISTS in your inserts to see if that makes a difference? That shouldn't make a difference, but I don't see what the problem might be at the moment. -- *Christophe Schmitz**Director of consulting EMEA* --f4030435b7489e461e0556e7af31 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi Nathan,


The code may occasionally write to the same ro= w multiple times.


Can you run a test using IF NOT EXISTS in your inserts to see if that make= s a difference? That shouldn't make a difference, but I don't see w= hat the problem might be at the moment.


=
--

Christophe Sc= hmitz
Director o= f consulting EMEA

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