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 5073968D1 for ; Thu, 16 Jun 2011 16:13:42 +0000 (UTC) Received: (qmail 75348 invoked by uid 500); 16 Jun 2011 16:13:39 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 75313 invoked by uid 500); 16 Jun 2011 16:13:39 -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 75305 invoked by uid 99); 16 Jun 2011 16:13:39 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 16 Jun 2011 16:13:39 +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 ryan@twitter.com designates 209.85.214.172 as permitted sender) Received: from [209.85.214.172] (HELO mail-iw0-f172.google.com) (209.85.214.172) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 16 Jun 2011 16:13:33 +0000 Received: by iwn39 with SMTP id 39so1683283iwn.31 for ; Thu, 16 Jun 2011 09:13:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=twitter.com; s=google; h=domainkey-signature:mime-version:in-reply-to:references:from:date :message-id:subject:to:content-type; bh=0VF7Zzw/8rozG7P9T+dAsHcy9wYfmSlDIX3aAf9AFgs=; b=eKMyifJMduoyH/c9ubJZvWgr6f9ky3y5RhHTs94KF+Ht2L+KdqESs4kj0cIYloEaNd KvE+wLRqIFt4I/wOjaC78r24iBUJJyWvwh3RO/vd4xPhey34OUgdsFV+KpLYvCdan538 5/f79IeAaGhxvs3mRz59HNUyi1D8HCPteoKQU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=twitter.com; s=google; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type; b=lwqD2VfiZT8l8kERTDczdaHgWAzz+puhOkM7cI+YWb4vwuVlOF3+K1hYoPB3vQQebC rCMZiJVpvOPtQ7dH8kPTcQ5LljhYYsr4/t5gxBUUOk8SApkrHuYbUWCDrUatLsaVGwuL nfc2auNin+9iAT8Rc15KBklFgXhgnuKqN05D8= Received: by 10.43.135.72 with SMTP id if8mr42217icc.265.1308240792124; Thu, 16 Jun 2011 09:13:12 -0700 (PDT) MIME-Version: 1.0 Received: by 10.42.219.8 with HTTP; Thu, 16 Jun 2011 09:12:52 -0700 (PDT) In-Reply-To: References: From: Ryan King Date: Thu, 16 Jun 2011 09:12:52 -0700 Message-ID: Subject: Re: snitch & thrift To: user@cassandra.apache.org Content-Type: text/plain; charset=UTF-8 X-Virus-Checked: Checked by ClamAV on apache.org On Thu, Jun 16, 2011 at 6:11 AM, Terje Marthinussen wrote: > Hi all! > Assuming a node ends up in GC land for a while, there is a good chance that > even though it performs terribly and the dynamic snitching will help you to > avoid it on the gossip side, it will not really help you much if thrift > still accepts requests and the thrift interface has choppy performance. > This makes me wonder if it is a potential idea with thrift only client mode > nodes. Those could GC too, albeit to a lesser degree. > I don't think I have seen that this exists today (or is it possible that I > have missed a way to configure that?), but it does not seem like a very hard > thing to make and could maybe be good in some usage patterns for the > datanode as well as the thrift side. It might be sometimes useful, but we can't really know without running some tests. -ryan