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 16A4DF22D for ; Wed, 10 Apr 2013 00:01:55 +0000 (UTC) Received: (qmail 82557 invoked by uid 500); 10 Apr 2013 00:01:52 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 82527 invoked by uid 500); 10 Apr 2013 00:01:52 -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 82516 invoked by uid 99); 10 Apr 2013 00:01:52 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 10 Apr 2013 00:01:52 +0000 X-ASF-Spam-Status: No, hits=0.7 required=5.0 tests=SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (nike.apache.org: local policy) Received: from [108.166.43.73] (HELO smtp73.ord1c.emailsrvr.com) (108.166.43.73) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 10 Apr 2013 00:01:46 +0000 Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp2.relay.ord1c.emailsrvr.com (SMTP Server) with ESMTP id 09D571E828B for ; Tue, 9 Apr 2013 20:01:25 -0400 (EDT) X-Virus-Scanned: OK Received: by smtp2.relay.ord1c.emailsrvr.com (Authenticated sender: bill-AT-dehora.net) with ESMTPSA id AD29A1E8280 for ; Tue, 9 Apr 2013 20:01:24 -0400 (EDT) Date: Wed, 10 Apr 2013 01:01:20 +0100 From: =?utf-8?Q?Bill_de_h=C3=93ra?= To: user@cassandra.apache.org Message-ID: In-Reply-To: <8CFCBC234ABD4408AD3547724DD44E1C@dehora.net> References: <8CFCBC234ABD4408AD3547724DD44E1C@dehora.net> Subject: Re: High gossip traffic volume on 1.1.9 X-Mailer: sparrow 1.6.4 (build 1178) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline X-Virus-Checked: Checked by ClamAV on apache.org > gossip traffic =20 That was imprecise, I should have said port 7000 instead of 'gossip'. I g= ot some help on irc, and it may have been a read repair, but not sure. Wh= at was interesting was the internal load relative to anything happening e= xternally (120Mbps+ on 7000 compared to =7E500Kbps on 9160). =20 Bill On Tuesday 9 April 2013 at 20:31, Bill de h=C3=93ra wrote: > A test 3 node cluster I'm running, managed by Priam, has 'suddenly' see= n its gossip traffic fly up, peaking at 120mbps. Looking at tcpdump it se= ems there is simply a high rate of gossip traffic. There's nothing obviou= sly wrong the cluster itself; it's barely loaded, no markdowns/hints/gc a= nd all else seems healthy. > =20 > I'm wondering if anyone has seen this behaviour on 1.1.9 and/or Priam=3F= > =20 > Bill =20