Return-Path: X-Original-To: apmail-cassandra-user-archive@www.apache.org Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id B0B52CF61 for ; Mon, 21 May 2012 16:47:26 +0000 (UTC) Received: (qmail 53963 invoked by uid 500); 21 May 2012 16:47:24 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 53905 invoked by uid 500); 21 May 2012 16:47:24 -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 53891 invoked by uid 99); 21 May 2012 16:47:24 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 21 May 2012 16:47:24 +0000 X-ASF-Spam-Status: No, hits=-0.0 required=5.0 tests=SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of hsn@filez.com designates 64.6.108.239 as permitted sender) Received: from [64.6.108.239] (HELO ponto.amerinoc.com) (64.6.108.239) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 21 May 2012 16:47:15 +0000 Received: from fbsd8.localdomain (205.83.broadband7.iol.cz [88.102.83.205]) (authenticated bits=128) by ponto.amerinoc.com (8.14.5/8.14.5) with ESMTP id q4LGko7w049522 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Mon, 21 May 2012 18:46:53 +0200 (CEST) (envelope-from hsn@filez.com) Received: from [127.0.0.1] ([10.0.0.1]) by fbsd8.localdomain (8.14.5/8.14.4) with ESMTP id q4LGkigg051885 for ; Mon, 21 May 2012 18:46:44 +0200 (CEST) (envelope-from hsn@filez.com) Message-ID: <4FBA716C.3020706@filez.com> Date: Mon, 21 May 2012 18:46:36 +0200 From: Radim Kolar User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:12.0) Gecko/20120428 Thunderbird/12.0.1 MIME-Version: 1.0 To: user@cassandra.apache.org Subject: Re: Counters and replication factor References: <4F6D5CEE.8040204@filez.com> <7D5E9E5B-2881-4D7A-964D-4E40094833B1@thelastpickle.com> In-Reply-To: <7D5E9E5B-2881-4D7A-964D-4E40094833B1@thelastpickle.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Antivirus: avast! (VPS 120521-0, 21.05.2012), Outbound message X-Antivirus-Status: Clean Dne 26.3.2012 19:17, aaron morton napsal(a): > Can you describe the situations where counter updates are lost or go > backwards ? > > Do you ever get TimedOutExceptions when performing counter updates ? we got few timeouts per day but not much, less then 10. I do not think that timeouts will be root cause. I havent figured exact steps to reproduce it (i havent even tried). We are reading at CL.ONE but cluster is well synchronized and we are reading long time after writing - new value should be present at all nodes allready.