Return-Path: X-Original-To: apmail-aurora-issues-archive@minotaur.apache.org Delivered-To: apmail-aurora-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id D1C2617296 for ; Mon, 26 Jan 2015 23:00:05 +0000 (UTC) Received: (qmail 68715 invoked by uid 500); 26 Jan 2015 23:00:06 -0000 Delivered-To: apmail-aurora-issues-archive@aurora.apache.org Received: (qmail 68676 invoked by uid 500); 26 Jan 2015 23:00:06 -0000 Mailing-List: contact issues-help@aurora.incubator.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@aurora.incubator.apache.org Delivered-To: mailing list issues@aurora.incubator.apache.org Received: (qmail 68667 invoked by uid 99); 26 Jan 2015 23:00:06 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 26 Jan 2015 23:00:06 +0000 X-ASF-Spam-Status: No, hits=-2000.0 required=5.0 tests=ALL_TRUSTED,T_RP_MATCHES_RCVD X-Spam-Check-By: apache.org Received: from [140.211.11.3] (HELO mail.apache.org) (140.211.11.3) by apache.org (qpsmtpd/0.29) with SMTP; Mon, 26 Jan 2015 23:00:05 +0000 Received: (qmail 65501 invoked by uid 99); 26 Jan 2015 22:59:45 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 26 Jan 2015 22:59:45 +0000 Date: Mon, 26 Jan 2015 22:59:45 +0000 (UTC) From: "Maxim Khutornenko (JIRA)" To: issues@aurora.incubator.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (AURORA-930) GC performance issues with snapshot deduplication on large clusters MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 X-Virus-Checked: Checked by ClamAV on apache.org [ https://issues.apache.org/jira/browse/AURORA-930?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Maxim Khutornenko updated AURORA-930: ------------------------------------- Fix Version/s: 0.7.0 > GC performance issues with snapshot deduplication on large clusters > ------------------------------------------------------------------- > > Key: AURORA-930 > URL: https://issues.apache.org/jira/browse/AURORA-930 > Project: Aurora > Issue Type: Story > Components: Scheduler > Reporter: Chris Lambert > Assignee: Kevin Sweeney > Fix For: 0.7.0 > > > We observed very long GC pauses in our production cluster we believe are caused by the extra heap pressure caused by SnapshotDeduplicatorImpl's extra deep copy of a Snapshot object. > Also, EntrySerializer fully buffers the full binary-encoded thrift Snapshot before writing it to the replicated log - it can avoid memory pressure by streaming instead. -- This message was sent by Atlassian JIRA (v6.3.4#6332)