Return-Path: X-Original-To: apmail-zookeeper-user-archive@www.apache.org Delivered-To: apmail-zookeeper-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 A0E7710710 for ; Wed, 9 Apr 2014 02:05:47 +0000 (UTC) Received: (qmail 59775 invoked by uid 500); 9 Apr 2014 02:05:46 -0000 Delivered-To: apmail-zookeeper-user-archive@zookeeper.apache.org Received: (qmail 59651 invoked by uid 500); 9 Apr 2014 02:05:45 -0000 Mailing-List: contact user-help@zookeeper.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@zookeeper.apache.org Delivered-To: mailing list user@zookeeper.apache.org Received: (qmail 59643 invoked by uid 99); 9 Apr 2014 02:05:45 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 09 Apr 2014 02:05:45 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of comptechgeeky@gmail.com designates 209.85.212.180 as permitted sender) Received: from [209.85.212.180] (HELO mail-wi0-f180.google.com) (209.85.212.180) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 09 Apr 2014 02:05:41 +0000 Received: by mail-wi0-f180.google.com with SMTP id q5so2404776wiv.7 for ; Tue, 08 Apr 2014 19:05:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; bh=NgbSO/GTnuI2LBx2Wp2ZBby+Xcgt//y4nc5YW/md8cQ=; b=hXNSlltpF4u3vfw3ciTZHwlAkVA8lUItVQ3prMmDcNI6rCkLMDOFIe0cTl0nXZZ9kv TEIYkYFlgBFX2VFGZQLD8cpmU6E+Ky9g80vgmWHFrOBYgOizjZ9UlieSMEx6Pt5fN3XH 9yilPD+lujUX+y+5fL3kYqvpm0FaznPfZYT6Fl24A2QMSu+Dt6a1+HH7H8S2aN/+Q/Ld eYOG+60nWu61PHUPMQIYcj7HbYhfaUpTe4n1O+pCs6BWMKzoIdYkWEwpz+QHrLYXpXtE 2+zKfZHeezZAWQo9f0oBTDkfO/NQPDIIiWtRocsCebkk68l4CnMRBSCaUJqqnFIsR6nu WmGw== X-Received: by 10.194.173.193 with SMTP id bm1mr78290wjc.55.1397009120582; Tue, 08 Apr 2014 19:05:20 -0700 (PDT) MIME-Version: 1.0 Received: by 10.216.208.200 with HTTP; Tue, 8 Apr 2014 19:05:00 -0700 (PDT) In-Reply-To: References: From: Check Peck Date: Tue, 8 Apr 2014 19:05:00 -0700 Message-ID: Subject: Re: Load on Zookeeper cluster? To: michi Cc: user Content-Type: multipart/alternative; boundary=089e013c669c61607004f692883d X-Virus-Checked: Checked by ClamAV on apache.org --089e013c669c61607004f692883d Content-Type: text/plain; charset=ISO-8859-1 Actual scenario will be - Test :- 3 node ZK cluster, 600 sessions each will do one read operation(getChildren call) every one minute. At what configuration I should try it out. On Tue, Apr 8, 2014 at 6:25 PM, Michi Mutsuzaki wrote: > > So my question is what does this line mean at the end? Does it say, it > can > > do a get request call at a rate of 2557 requests per second? > > > > get 100 znodes in 39 ms (0.390978 ms/op > > 2557.689587/sec) > > Yes. > > > Also I was interested to see how much load a 3 node ZK cluster can > handle. > > In my case, most of the call will be "get" (get the data from only one > > znode) on the ZK cluster So with the above test I should be able to get > some > > idea right? > > How many ZK clients do you expect to have? I would run the same number > of zk-latency.py instances with higher number of operations to get a > more accurate picture. The performance also depends on whether you use > asynchronous reads or synchronous reads. > --089e013c669c61607004f692883d--