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 AF179200C4B for ; Mon, 20 Mar 2017 11:13:46 +0100 (CET) Received: by cust-asf.ponee.io (Postfix) id ADC34160B81; Mon, 20 Mar 2017 10:13:46 +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 07D21160B76 for ; Mon, 20 Mar 2017 11:13:45 +0100 (CET) Received: (qmail 71312 invoked by uid 500); 20 Mar 2017 10:13:45 -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 71300 invoked by uid 99); 20 Mar 2017 10:13:45 -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; Mon, 20 Mar 2017 10:13:45 +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 B8FAF1A0353 for ; Mon, 20 Mar 2017 10:13:44 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd2-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 0.651 X-Spam-Level: X-Spam-Status: No, score=0.651 tagged_above=-999 required=6.31 tests=[RP_MATCHES_RCVD=-0.001, SPF_NEUTRAL=0.652] autolearn=disabled Received: from mx1-lw-us.apache.org ([10.40.0.8]) by localhost (spamd2-us-west.apache.org [10.40.0.9]) (amavisd-new, port 10024) with ESMTP id k6D40mFvADxK for ; Mon, 20 Mar 2017 10:13:43 +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 C45CC60DB0 for ; Mon, 20 Mar 2017 10:13:43 +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 B1DE0E0A6C for ; Mon, 20 Mar 2017 10:13:42 +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 D8600254D4 for ; Mon, 20 Mar 2017 10:13:41 +0000 (UTC) Date: Mon, 20 Mar 2017 10:13:41 +0000 (UTC) From: "Eshcar Hillel (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: Mon, 20 Mar 2017 10:13:46 -0000 [ https://issues.apache.org/jira/browse/HBASE-16417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15932430#comment-15932430 ] Eshcar Hillel commented on HBASE-16417: --------------------------------------- I can use the code of HBASE-17655 to run the mixed workload benchmark to see if parallel seek fixes the high percentiles degradation. However as I understand the code despite the fact that parallelSeekEnabled is set to true when StoreScanner is created, since isLazy = explicitColumnQuery && lazySeekEnabledGlobally and since lazySeekEnabledGlobally is set to true by default and explicitColumnQuery is set to numCol > 0 which is true in our case (I think it is always true) then parallelSeek() is never invoked. Am I missing anything? What was the original intention -- when would we not want to run parallel seek? > 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, HBASE-16417-benchmarkresults-20170309.pdf, HBASE-16417-benchmarkresults-20170317.pdf > > -- This message was sent by Atlassian JIRA (v6.3.15#6346)