Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id C20BF200C0E for ; Wed, 1 Feb 2017 22:59:57 +0100 (CET) Received: by cust-asf.ponee.io (Postfix) id C0A1D160B41; Wed, 1 Feb 2017 21:59:57 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id 178AA160B46 for ; Wed, 1 Feb 2017 22:59:56 +0100 (CET) Received: (qmail 12176 invoked by uid 500); 1 Feb 2017 21:59:56 -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 12165 invoked by uid 99); 1 Feb 2017 21:59:56 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd2-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 01 Feb 2017 21:59:56 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd2-us-west.apache.org (ASF Mail Server at spamd2-us-west.apache.org) with ESMTP id D60A11A051B for ; Wed, 1 Feb 2017 21:59:55 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd2-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -1.999 X-Spam-Level: X-Spam-Status: No, score=-1.999 tagged_above=-999 required=6.31 tests=[KAM_LAZY_DOMAIN_SECURITY=1, RP_MATCHES_RCVD=-2.999] autolearn=disabled Received: from mx1-lw-eu.apache.org ([10.40.0.8]) by localhost (spamd2-us-west.apache.org [10.40.0.9]) (amavisd-new, port 10024) with ESMTP id 980du3ZKp3lT for ; Wed, 1 Feb 2017 21:59:55 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-eu.apache.org (ASF Mail Server at mx1-lw-eu.apache.org) with ESMTP id 0AB475FC34 for ; Wed, 1 Feb 2017 21:59:54 +0000 (UTC) Received: from jira-lw-us.apache.org (unknown [207.244.88.139]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id 81B3BE0555 for ; Wed, 1 Feb 2017 21:59:52 +0000 (UTC) Received: from jira-lw-us.apache.org (localhost [127.0.0.1]) by jira-lw-us.apache.org (ASF Mail Server at jira-lw-us.apache.org) with ESMTP id DA81625297 for ; Wed, 1 Feb 2017 21:59:51 +0000 (UTC) Date: Wed, 1 Feb 2017 21:59:51 +0000 (UTC) From: "Ashu Pachauri (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HBASE-17057) Minor compactions should also drop page cache behind reads MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Wed, 01 Feb 2017 21:59:57 -0000 [ https://issues.apache.org/jira/browse/HBASE-17057?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Ashu Pachauri updated HBASE-17057: ---------------------------------- Fix Version/s: 1.3.1 > Minor compactions should also drop page cache behind reads > ---------------------------------------------------------- > > Key: HBASE-17057 > URL: https://issues.apache.org/jira/browse/HBASE-17057 > Project: HBase > Issue Type: Improvement > Components: Compaction > Reporter: Ashu Pachauri > Assignee: Ashu Pachauri > Fix For: 1.3.1 > > Attachments: HBASE-17057.V1.patch > > > Long compactions currently drop cache behind reads/writes so that they don't pollute the page cache but short compactions don't do that. The bulk of the data is actually read during minor compactions instead of major compactions, and thrashes the page cache since it's mostly not needed. > We should drop page cache behind minor compactions too. -- This message was sent by Atlassian JIRA (v6.3.15#6346)