Return-Path: X-Original-To: apmail-giraph-user-archive@www.apache.org Delivered-To: apmail-giraph-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 25E93CC1E for ; Mon, 17 Mar 2014 16:19:30 +0000 (UTC) Received: (qmail 32087 invoked by uid 500); 17 Mar 2014 16:19:29 -0000 Delivered-To: apmail-giraph-user-archive@giraph.apache.org Received: (qmail 31639 invoked by uid 500); 17 Mar 2014 16:19:22 -0000 Mailing-List: contact user-help@giraph.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@giraph.apache.org Delivered-To: mailing list user@giraph.apache.org Received: (qmail 31328 invoked by uid 99); 17 Mar 2014 16:19:19 -0000 Received: from minotaur.apache.org (HELO minotaur.apache.org) (140.211.11.9) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 17 Mar 2014 16:19:19 +0000 Received: from localhost (HELO [172.20.36.215]) (127.0.0.1) (smtp-auth username aching, mechanism plain) by minotaur.apache.org (qpsmtpd/0.29) with ESMTP; Mon, 17 Mar 2014 16:19:19 +0000 Message-ID: <5327208B.4060905@apache.org> Date: Mon, 17 Mar 2014 09:19:23 -0700 From: Avery Ching User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:24.0) Gecko/20100101 Thunderbird/24.3.0 MIME-Version: 1.0 To: user@giraph.apache.org Subject: Re: Java Process Memory Leak References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Hi Young, Our Hadoop instance (Corona) kills processes after they finish executing so we don't see this. You might want to do a jstack to see where it's hung up on and figure out the issue. Thanks Avery On 3/17/14, 7:56 AM, Young Han wrote: > Hi all, > > With Giraph 1.0.0, I've noticed an issue where the Java process > corresponding to the job loiters around indefinitely even after the > job completes (successfully). The process consumes memory but not CPU > time. This happens on both a single machine and clusters of machines > (in which case every worker has the issue). The only way I know of > fixing this is killing the Java process manually---restarting or > stopping Hadoop does not help. > > Is this some known bug or a configuration issue on my end? > > Thanks, > Young