Return-Path: X-Original-To: apmail-cassandra-commits-archive@www.apache.org Delivered-To: apmail-cassandra-commits-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 4E7D310DC4 for ; Fri, 28 Feb 2014 21:20:41 +0000 (UTC) Received: (qmail 87374 invoked by uid 500); 28 Feb 2014 21:20:32 -0000 Delivered-To: apmail-cassandra-commits-archive@cassandra.apache.org Received: (qmail 87209 invoked by uid 500); 28 Feb 2014 21:20:31 -0000 Mailing-List: contact commits-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@cassandra.apache.org Delivered-To: mailing list commits@cassandra.apache.org Received: (qmail 87036 invoked by uid 99); 28 Feb 2014 21:20:27 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 28 Feb 2014 21:20:27 +0000 Date: Fri, 28 Feb 2014 21:20:27 +0000 (UTC) From: "Brandon Williams (JIRA)" To: commits@cassandra.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Resolved] (CASSANDRA-6541) New versions of Hotspot create new Class objects on every JMX connection causing the heap to fill up with them if CMSClassUnloadingEnabled isn't set. MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/CASSANDRA-6541?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Brandon Williams resolved CASSANDRA-6541. ----------------------------------------- Resolution: Fixed Fix Version/s: 2.1 beta2 2.0.6 1.2.16 Reviewer: Michael Shuler Assignee: Brandon Williams I committed this. > New versions of Hotspot create new Class objects on every JMX connection causing the heap to fill up with them if CMSClassUnloadingEnabled isn't set. > ----------------------------------------------------------------------------------------------------------------------------------------------------- > > Key: CASSANDRA-6541 > URL: https://issues.apache.org/jira/browse/CASSANDRA-6541 > Project: Cassandra > Issue Type: Bug > Components: Config > Reporter: jonathan lacefield > Assignee: Brandon Williams > Priority: Minor > Fix For: 1.2.16, 2.0.6, 2.1 beta2 > > > Newer versions of Oracle's Hotspot JVM , post 6u43 (maybe earlier) and 7u25 (maybe earlier), are experiencing issues with GC and JMX where heap slowly fills up overtime until OOM or a full GC event occurs, specifically when CMS is leveraged. Adding: > {noformat} > JVM_OPTS="$JVM_OPTS -XX:+CMSClassUnloadingEnabled" > {noformat} > The the options in cassandra-env.sh alleviates the problem. -- This message was sent by Atlassian JIRA (v6.1.5#6160)