Return-Path: X-Original-To: apmail-flume-user-archive@www.apache.org Delivered-To: apmail-flume-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 27B03FC12 for ; Mon, 29 Apr 2013 11:35:05 +0000 (UTC) Received: (qmail 87073 invoked by uid 500); 29 Apr 2013 11:35:04 -0000 Delivered-To: apmail-flume-user-archive@flume.apache.org Received: (qmail 86615 invoked by uid 500); 29 Apr 2013 11:34:59 -0000 Mailing-List: contact user-help@flume.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@flume.apache.org Delivered-To: mailing list user@flume.apache.org Received: (qmail 86569 invoked by uid 99); 29 Apr 2013 11:34:58 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 29 Apr 2013 11:34:58 +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 brock@cloudera.com designates 209.85.223.171 as permitted sender) Received: from [209.85.223.171] (HELO mail-ie0-f171.google.com) (209.85.223.171) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 29 Apr 2013 11:34:53 +0000 Received: by mail-ie0-f171.google.com with SMTP id e11so7154363iej.16 for ; Mon, 29 Apr 2013 04:34:32 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-received:date:from:to:message-id:in-reply-to:references:subject :x-mailer:mime-version:content-type:x-gm-message-state; bh=Qx437mQ+4tHg7QCAzuE1COUzfSl49jXJHTzA39gMMrA=; b=SjFP68I2h589TphKybao43zxd7hLUkC2e7VOEkMQT4+VzashjaXhPaZlCPs3geoKB1 rXp/6nfQlIy5lKZOPLcski1gfKOVJOna07O2nZIB28tBuBBg8D81jdkdRq6qH/8uclLm 9Z9ElME/5N0QdGh5w0UX7AI3CYeetZQSqJmqKiR/KJJ63Yy1fR+ErIVsoFgcYfE1bX02 jDIKHSGRtR/RuSxU9un3+/GalbRaSn+pywUvCDaIBdFngBYkc7gPaVAxR+B0iJ/Wqehz VK7prve/Vj75Adp6Y8icwdL1yMx9FXRK+PWlpmWY7qScbymRDmpp76i35/ZxNlzOFztK PiJQ== X-Received: by 10.50.55.8 with SMTP id n8mr7143791igp.28.1367235272616; Mon, 29 Apr 2013 04:34:32 -0700 (PDT) Received: from [10.0.0.9] (c-50-148-228-166.hsd1.mn.comcast.net. [50.148.228.166]) by mx.google.com with ESMTPSA id s16sm16958835ign.4.2013.04.29.04.34.30 for (version=TLSv1.2 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 29 Apr 2013 04:34:31 -0700 (PDT) Date: Mon, 29 Apr 2013 06:34:29 -0500 From: Brock Noland To: user@flume.apache.org Message-ID: In-Reply-To: References: Subject: Re: High CPU usage when using file channel. X-Mailer: sparrow 1.3.4 (build 507.54) MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="517e5ac5_3d1b58ba_4487" X-Gm-Message-State: ALoCoQl/4hjh8X3lQxSBP7+1suOCXGmATQ0awNStds4Ts/vFG8iwMa6eoDb2XLoh3hX6u8xCObaL X-Virus-Checked: Checked by ClamAV on apache.org --517e5ac5_3d1b58ba_4487 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Weird. Do you feel comfortable using a java profiler? If not could you take 4-5 thread dumps while that channel is using that much CPU. -- Brock Noland Sent with Sparrow (http://www.sparrowmailapp.com/?sig) On Monday, April 29, 2013 at 2:48 AM, Pranav Sharma wrote: > Hi, > > I see a very high CPU usage (70-75% on AWS EC2 m1 large machines and 96-100% on m1 small) when I use the file channel. I'm using apache-flume-1.3.1. Is this a known issue? As soon as I switched to the memory channel, the CPU usage dropped to almost 0. > > Thanks, > -Pranav. --517e5ac5_3d1b58ba_4487 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline
Weird. Do you feel comfortable using a java profiler=3F If not co= uld you take 4-5 thread dumps while that channel is using that much CPU.&= nbsp;

-= - 
Brock Noland
Sent with Sparrow

=20

On Monday, April 29, 2013 at 2:48 = AM, Pranav Sharma wrote:

Hi,

I see a ve= ry high CPU usage (70-75% on AWS EC2 m1 large machines and 96-100% on m1 = small) when I use the file channel. I'm using apache-flume-1.3.1. Is= this a known issue=3F As soon as I switched to the memory channel, the C= PU usage dropped to almost 0. 

Thanks,
-Pranav.
=20 =20 =20 =20
=20

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