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 6CA21D86C for ; Thu, 8 Nov 2012 19:21:12 +0000 (UTC) Received: (qmail 12735 invoked by uid 500); 8 Nov 2012 19:21:08 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 12707 invoked by uid 500); 8 Nov 2012 19:21:08 -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 12698 invoked by uid 99); 8 Nov 2012 19:21:08 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 08 Nov 2012 19:21:08 +0000 X-ASF-Spam-Status: No, hits=-0.7 required=5.0 tests=RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of btoddb@gmail.com designates 209.85.219.44 as permitted sender) Received: from [209.85.219.44] (HELO mail-oa0-f44.google.com) (209.85.219.44) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 08 Nov 2012 19:21:02 +0000 Received: by mail-oa0-f44.google.com with SMTP id n5so3482485oag.31 for ; Thu, 08 Nov 2012 11:20:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=p8fQopMkw5a7s7WFk2mDo5jUuoeeE+xAcNQYXMM+1Yc=; b=zpa5oBb9lka2t+KqCWz/qKwgz95Urkr75S8Wdu76p+z7+YL+aewc1SJxmPiQ0/t/45 RBeL/GE/G3FqgZo06sUprgn/4vPYIQ7K37A6LIo+W+wxzFbGsAFbpdDJutcuTD/ngRhn u5J74scFIdoMUCDLdGJug+BQoUNDItxqw1bICMZ2iiuxBHg9H2OVd0H0gRvmQRq7rrIm Z6gdbcFOxXpXEVXb/N/KupGyY/N5A44kWSz1dp8iZPhfTYc+uI/DsusuWrhB1/jSD4I8 bqx+uJqTEhfub28wYrO9jIgSBbiXmIRInXjMUefq1YmwrJAQXZr8z3qMLIC37/mP+j7w g5Pg== MIME-Version: 1.0 Received: by 10.60.27.36 with SMTP id q4mr6013008oeg.111.1352402441018; Thu, 08 Nov 2012 11:20:41 -0800 (PST) Received: by 10.182.171.8 with HTTP; Thu, 8 Nov 2012 11:20:40 -0800 (PST) In-Reply-To: <509BF726.8060309@filez.com> References: <509BF726.8060309@filez.com> Date: Thu, 8 Nov 2012 11:20:40 -0800 Message-ID: Subject: Re: leveled compaction and tombstoned data From: "B. Todd Burruss" To: user@cassandra.apache.org Content-Type: text/plain; charset=ISO-8859-1 X-Virus-Checked: Checked by ClamAV on apache.org we are running Datastax enterprise and cannot patch it. how bad is "kill performance"? if it is so bad, why is it an option? On Thu, Nov 8, 2012 at 10:17 AM, Radim Kolar wrote: > Dne 8.11.2012 19:12, B. Todd Burruss napsal(a): > >> my question is would leveled compaction help to get rid of the tombstoned >> data faster than size tiered, and therefore reduce the disk space usage? >> > leveled compaction will kill your performance. get patch from jira for > maximum sstable size per CF and force cassandra to make smaller tables, they > expire faster. >