Return-Path: X-Original-To: apmail-hbase-issues-archive@www.apache.org Delivered-To: apmail-hbase-issues-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 5406A17B53 for ; Thu, 26 Feb 2015 00:57:10 +0000 (UTC) Received: (qmail 4295 invoked by uid 500); 26 Feb 2015 00:57:05 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 4246 invoked by uid 500); 26 Feb 2015 00:57:05 -0000 Mailing-List: contact issues-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list issues@hbase.apache.org Received: (qmail 4234 invoked by uid 99); 26 Feb 2015 00:57:05 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 26 Feb 2015 00:57:05 +0000 Date: Thu, 26 Feb 2015 00:57:05 +0000 (UTC) From: "stack (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HBASE-13097) Netty PooledByteBufAllocator cause OOM in some unit test 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/HBASE-13097?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14337601#comment-14337601 ] stack commented on HBASE-13097: ------------------------------- Changing thrust of issue is good by me. Reducing connections and rpclients in tests is a fine goal. > Netty PooledByteBufAllocator cause OOM in some unit test > -------------------------------------------------------- > > Key: HBASE-13097 > URL: https://issues.apache.org/jira/browse/HBASE-13097 > Project: HBase > Issue Type: Bug > Components: IPC/RPC, test > Affects Versions: 2.0.0, 1.1.0 > Reporter: zhangduo > > In some unit tests(such as TestAcidGuarantees) we create multiple Connection instance. If we use AsyncRpcClient, then there will be multiple netty Bootstrap and every Bootstrap has its own PooledByteBufAllocator. > I haven't read the code clearly but it uses some threadlocal technics and jmap shows io.netty.buffer.PoolThreadCache$MemoryRegionCache$Entry is the biggest things on Heap. > See https://builds.apache.org/job/HBase-TRUNK/6168/artifact/hbase-server/target/surefire-reports/org.apache.hadoop.hbase.TestAcidGuarantees-output.txt > {noformat} > 2015-02-24 23:50:29,704 WARN [JvmPauseMonitor] util.JvmPauseMonitor$Monitor(167): Detected pause in JVM or host machine (eg GC): pause of approximately 20133ms > GC pool 'PS MarkSweep' had collection(s): count=15 time=55525ms > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)