Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 3667 invoked from network); 28 Apr 2010 05:40:23 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 28 Apr 2010 05:40:23 -0000 Received: (qmail 34913 invoked by uid 500); 28 Apr 2010 05:40:23 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 34784 invoked by uid 500); 28 Apr 2010 05:40:22 -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 34776 invoked by uid 99); 28 Apr 2010 05:40:22 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 28 Apr 2010 05:40:22 +0000 X-ASF-Spam-Status: No, hits=3.0 required=10.0 tests=FREEMAIL_FROM,HK_RANDOM_ENVFROM,HK_RANDOM_FROM,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of zjffdu@gmail.com designates 74.125.83.172 as permitted sender) Received: from [74.125.83.172] (HELO mail-pv0-f172.google.com) (74.125.83.172) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 28 Apr 2010 05:40:16 +0000 Received: by pvg4 with SMTP id 4so783397pvg.31 for ; Tue, 27 Apr 2010 22:39:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:content-type :content-transfer-encoding; bh=aEsSBiawEndCNeQzLV2F/u59fmzBUcmYSZHjy33/5HY=; b=bipWc6PPzFRS/Izpezi6M/JRlNAnG8Y101xmgbHaCIq8Vw6LJ/BN5hUbuYsUSmd04V Z8elexZyL7Uzff7sCc3nVMZplT+tqhN0XYtkDCEtwwqn4iKqzC7Jx253u9QvvbT+lNfI PE9A2GpgGPDf2aOpPdRtDP3OyKGK3fjIC9ZwE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; b=U7YS+vQmEXYOX4eBdSqKeh3A3YvzCebxqq7G2n8ylSUMUY06kCaxFzFG2j+dmXaw50 ftVSNBKPU9oIJBOi+iL+pVrSJObbDN4dRgzF6mXCFAjOACLzZiRbRst5OHTHnylz5cUg 5C0xPw05W9yrtTXjYOjh/a9VeQbt1EtHfeP00= MIME-Version: 1.0 Received: by 10.143.24.24 with SMTP id b24mr3557139wfj.180.1272433194758; Tue, 27 Apr 2010 22:39:54 -0700 (PDT) Received: by 10.142.211.17 with HTTP; Tue, 27 Apr 2010 22:39:54 -0700 (PDT) In-Reply-To: References: Date: Wed, 28 Apr 2010 13:39:54 +0800 Message-ID: Subject: Re: How to permanently delete one key ? From: Jeff Zhang To: user@cassandra.apache.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Virus-Checked: Checked by ClamAV on apache.org Thanks Lu, it's helpful. On Wed, Apr 28, 2010 at 11:42 AM, Greg Lu wrote: > Hey Jeff, > I think this article addresses your > question:=C2=A0http://spyced.blogspot.com/2010/02/distributed-deletes-in-= cassandra.html > -Greg > > On Tue, Apr 27, 2010 at 10:14 PM, Jeff Zhang wrote: >> >> Hi all, >> >> I use the thrift api to remove one key, and then use the >> get_range_slices to get all the keys and find that the key which I >> deleted is still there. I refer to the thrift api doc which says >> get_range_slices will apply to all the keys including the deleted >> keys. So my question is how can I delete one key permanently, my guess >> is that cassandra won't delete the key at once just mark the deleted >> keys. So when will cassandra do the real deletion operation? >> >> >> -- >> Best Regards >> >> Jeff Zhang > > --=20 Best Regards Jeff Zhang