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 B531B200C4D for ; Wed, 1 Mar 2017 05:12:52 +0100 (CET) Received: by cust-asf.ponee.io (Postfix) id B3CD0160B7C; Wed, 1 Mar 2017 04:12:52 +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 0A187160B7E for ; Wed, 1 Mar 2017 05:12:51 +0100 (CET) Received: (qmail 27430 invoked by uid 500); 1 Mar 2017 04:12:51 -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 27388 invoked by uid 99); 1 Mar 2017 04:12:51 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd3-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 01 Mar 2017 04:12:51 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd3-us-west.apache.org (ASF Mail Server at spamd3-us-west.apache.org) with ESMTP id A8331186142 for ; Wed, 1 Mar 2017 04:12:50 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd3-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -2.347 X-Spam-Level: X-Spam-Status: No, score=-2.347 tagged_above=-999 required=6.31 tests=[RP_MATCHES_RCVD=-2.999, SPF_NEUTRAL=0.652] autolearn=disabled Received: from mx1-lw-us.apache.org ([10.40.0.8]) by localhost (spamd3-us-west.apache.org [10.40.0.10]) (amavisd-new, port 10024) with ESMTP id GiSDk7guE0Qd for ; Wed, 1 Mar 2017 04:12:50 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-us.apache.org (ASF Mail Server at mx1-lw-us.apache.org) with ESMTP id B9B7D5F4E5 for ; Wed, 1 Mar 2017 04:12:49 +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 68398E0A12 for ; Wed, 1 Mar 2017 04:12:46 +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 C43B524174 for ; Wed, 1 Mar 2017 04:12:45 +0000 (UTC) Date: Wed, 1 Mar 2017 04:12:45 +0000 (UTC) From: "Duo Zhang (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HBASE-16417) In-Memory MemStore Policy for Flattening and Compactions MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Wed, 01 Mar 2017 04:12:52 -0000 [ https://issues.apache.org/jira/browse/HBASE-16417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15889466#comment-15889466 ] Duo Zhang commented on HBASE-16417: ----------------------------------- KeyValue has extra fields other than value, such as the rowkey, family, qualifier and timestamp etc. So a larger size for WAL is expected. You can increase the value size to see if it is still 2 times larger. The overhead should be a fixed value if you only change the value size. And it is not expected to have a small WAL size for AsyncFSWAL. There must be something wrong. Need check it. Need a UT to reproduce it first I think. Thanks. > In-Memory MemStore Policy for Flattening and Compactions > -------------------------------------------------------- > > Key: HBASE-16417 > URL: https://issues.apache.org/jira/browse/HBASE-16417 > Project: HBase > Issue Type: Sub-task > Reporter: Anastasia Braginsky > Assignee: Eshcar Hillel > Fix For: 2.0.0 > > Attachments: HBASE-16417-benchmarkresults-20161101.pdf, HBASE-16417-benchmarkresults-20161110.pdf, HBASE-16417-benchmarkresults-20161123.pdf, HBASE-16417-benchmarkresults-20161205.pdf > > -- This message was sent by Atlassian JIRA (v6.3.15#6346)