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 81599CB54 for ; Fri, 13 Sep 2013 12:51:50 +0000 (UTC) Received: (qmail 12409 invoked by uid 500); 13 Sep 2013 06:12:33 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 12164 invoked by uid 500); 13 Sep 2013 06:12:13 -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 11998 invoked by uid 99); 13 Sep 2013 06:11:56 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 13 Sep 2013 06:11:56 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_LOW X-Spam-Check-By: apache.org Received-SPF: error (nike.apache.org: local policy) Received: from [209.85.220.172] (HELO mail-vc0-f172.google.com) (209.85.220.172) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 13 Sep 2013 06:11:49 +0000 Received: by mail-vc0-f172.google.com with SMTP id m17so612980vca.31 for ; Thu, 12 Sep 2013 23:11:08 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:date:message-id:subject:from:to :content-type; bh=t2Wf8QVZ5PcnOAGTr6B00egMKQN3Y2deZlBCiFG6lsI=; b=kFhqdFNJ7DqXtXJfsEtrKf6OI+3l1qGrfTotMiBER7EyyPAK957w9OwWMwflvRye/E +8z+n9SUlh3j4akqXm1Y/0ZZP+UBhpdTIK9LryXSHBrxnwnAn62l0kDXJ+U4ZVLewEwD tO5kBN2vPbHphDX+D6RC4/AU91UfOtnn9VPap7GbN78i9oBtIbKBk+P6tGpu6jUWg+Lm MKeRt+5dGkK5JSJDdRmypyFDRPE0exFa2VGn5lGweYwB37sFOdM96xDeDhafZgtxO2Vz qs4xZu3eBVFsIwTlo37GjPAghnLWl4ryr7oukhHxMWupiXO2yUTUbkXipqJefROFYyeY 5DCg== X-Gm-Message-State: ALoCoQmXdp3v0g8crcsjEm88Jb3do5AtWiX2jjQ46WgVbaBCNCr5eHJ8dqVLz8j/cA84DB+q4WAJ MIME-Version: 1.0 X-Received: by 10.52.164.102 with SMTP id yp6mr9002387vdb.14.1379052668025; Thu, 12 Sep 2013 23:11:08 -0700 (PDT) Received: by 10.52.116.67 with HTTP; Thu, 12 Sep 2013 23:11:07 -0700 (PDT) Date: Fri, 13 Sep 2013 00:11:07 -0600 Message-ID: Subject: Normal "OS: Disk Throughput" levels for EC2 From: David Ward To: user@cassandra.apache.org Content-Type: multipart/alternative; boundary=001a11c2c1ea679c0104e63db895 X-Virus-Checked: Checked by ClamAV on apache.org --001a11c2c1ea679c0104e63db895 Content-Type: text/plain; charset=ISO-8859-1 I noticed on EC2, the c* nodes according to OpsCenter have never gone above 1.6-2.2MBps. That seems abnormally low but I have no reference as to what is "normal" for cassandra on EC2 and curious what other people have seen according to OpsCenter for the "OS: Disk Throughput" metric. Thanks, Dave --001a11c2c1ea679c0104e63db895 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
I noticed on EC2, the c* nodes according to OpsCenter have= never gone above 1.6-2.2MBps. =A0That seems abnormally low but I have no r= eference as to what is "normal" for cassandra on EC2 and curious = what other people have seen according to OpsCenter for the "OS: Disk T= hroughput" metric.

Thanks,
=A0 =A0Dave
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