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 3D791F670 for ; Fri, 12 Apr 2013 13:21:09 +0000 (UTC) Received: (qmail 56085 invoked by uid 500); 12 Apr 2013 13:21:06 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 56022 invoked by uid 500); 12 Apr 2013 13:21:06 -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 55869 invoked by uid 99); 12 Apr 2013 13:21:06 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 12 Apr 2013 13:21:05 +0000 X-ASF-Spam-Status: No, hits=1.3 required=5.0 tests=FORGED_YAHOO_RCVD,FREEMAIL_ENVFROM_END_DIGIT,RCVD_IN_DNSWL_NONE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: local policy) Received: from [98.138.91.43] (HELO nm29-vm0.bullet.mail.ne1.yahoo.com) (98.138.91.43) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 12 Apr 2013 13:20:56 +0000 Received: from [98.138.90.56] by nm29.bullet.mail.ne1.yahoo.com with NNFMP; 12 Apr 2013 13:20:35 -0000 Received: from [98.138.84.42] by tm9.bullet.mail.ne1.yahoo.com with NNFMP; 12 Apr 2013 13:20:35 -0000 Received: from [127.0.0.1] by smtp110.mail.ne1.yahoo.com with NNFMP; 12 Apr 2013 13:20:35 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1365772835; bh=cn408WoB+7LsvXqJVJ7qYkDsbMPywq0GoxvkH0gniPM=; h=X-Yahoo-Newman-Id:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:X-Rocket-Received:From:Content-Type:Content-Transfer-Encoding:Subject:Date:Message-Id:To:Mime-Version:X-Mailer; b=4bJwaFUkE5cSnfWCFxR/h2TE1tnVXFm6cvv0guWMXIU/LSPdQOHW5tjueWakad1eaSEG9+/jwYzzTFN51dY+MrAEz/hFd+cWysSM3Ef2NGf9jJKNEEsdBUCDliAuauLQQGhM2ECiOwBuwQ2xrL07dsnmbGoyiEFVgTfkFa1BL6s= X-Yahoo-Newman-Id: 403057.87569.bm@smtp110.mail.ne1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: VAOXXesVM1nE5CGnGGXqic2iQq9FPur1TZa.wic4WMIEFNA ozUqmw7ikQ6vkT4OERXqHpTJwRqRLSUmPEdU3UC_G_kCV6d9Ow92WQAgsBmj 3yAQ5QYFW21_FsolNW._bng3s0Uz47P1M.dJjjweeh96g5IvuO2K6sIzDRU9 FLDwBwkoy6bInd57MFgdJrEQqsouXN8AxXAWLMOcCUx9a9D.eo6DEmC8uEK4 QDYSoxY4H3T4n_Nbxv8myh.LiWQSPcRrSG2ptCVBaOgyOD7fzBWtlkhZBv2e 5oH1T9JjuI8fzd7YYLIC0IpT6BT0aHjIoqC2LtmM5HrgSKbfOESz8lAjHSi0 wD7H5qVzeQMR9qytUC5cHQ_R_r5.DFRCKGzurQPFusmAHCN9G2ofcqNuGk73 Qq8X8_TDNar4zmdKjwNdo07wGmT5LApc4NOGU6NGl4rjn56c3A6zc1RWu2G5 HsWeNuNPE.2w- X-Yahoo-SMTP: t0UN_U2swBCFgwLIRu70LU92TrvpdQ-- X-Rocket-Received: from [192.168.1.2] (mtheroux2@76.118.248.45 with plain) by smtp110.mail.ne1.yahoo.com with SMTP; 12 Apr 2013 06:20:35 -0700 PDT From: Michael Theroux Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Subject: Timestamps and CQL Date: Fri, 12 Apr 2013 09:20:34 -0400 Message-Id: <18E274B9-B815-4305-9578-9AC11623F4F9@yahoo.com> To: user@cassandra.apache.org Mime-Version: 1.0 (Apple Message framework v1283) X-Mailer: Apple Mail (2.1283) X-Virus-Checked: Checked by ClamAV on apache.org Hello, We are having an odd sporadic issue that I believe maybe due to time = synchronization. Without going into details on the issue right now, = quick question, from the documentation I see numerous references that = Cassandra utilizes timestamps generated by the clients to determine = write serialization. However, going through the code, it appears that = for CQL over thrift, it will only use client generated timestamps if = "USING TIMESTAMP" is utilized in the cql statement, otherwise it will = use a server-generated timestamp. I was looking through 1.1.2 code. Am I reading this correctly? -Mike=