Return-Path: X-Original-To: apmail-accumulo-notifications-archive@minotaur.apache.org Delivered-To: apmail-accumulo-notifications-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 92D37176E4 for ; Mon, 11 May 2015 16:36:00 +0000 (UTC) Received: (qmail 40587 invoked by uid 500); 11 May 2015 16:36:00 -0000 Delivered-To: apmail-accumulo-notifications-archive@accumulo.apache.org Received: (qmail 40548 invoked by uid 500); 11 May 2015 16:36:00 -0000 Mailing-List: contact notifications-help@accumulo.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: jira@apache.org Delivered-To: mailing list notifications@accumulo.apache.org Received: (qmail 40529 invoked by uid 99); 11 May 2015 16:36:00 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 11 May 2015 16:36:00 +0000 Date: Mon, 11 May 2015 16:36:00 +0000 (UTC) From: "Josh Elser (JIRA)" To: notifications@accumulo.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (ACCUMULO-3793) enable numa memory interleaving 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/ACCUMULO-3793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14538133#comment-14538133 ] Josh Elser commented on ACCUMULO-3793: -------------------------------------- bq. Of course, numactl has to actually be installed on the system, and we could additionally require a flag to be set before we prefix our command (if we didn't want to execute with numactl by default... though I can't see much of a downside) You'll be breaking OSX (as it appears that it doesn't exist there. I would personally be upset if I suddenly have to install new software to (continue) running Accumulo. This sounds like it should be an option which can be enabled via accumulo-env.sh. > enable numa memory interleaving > ------------------------------- > > Key: ACCUMULO-3793 > URL: https://issues.apache.org/jira/browse/ACCUMULO-3793 > Project: Accumulo > Issue Type: Improvement > Components: scripts > Environment: Large VM > Reporter: Eric Newton > Assignee: Eric Newton > Fix For: 1.6.3, 1.8.0, 1.7.1 > > > In this [fine article|http://tinyurl.com/m8lt7v2] it is recommended that NUMA optimizations be disabled. This seems to be exactly our use-case as well, and we have been struggling with ways to manage the linux page cache on large production systems. Do this by default in the start scripts. -- This message was sent by Atlassian JIRA (v6.3.4#6332)