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 1EEC1200C02 for ; Fri, 16 Dec 2016 00:23:01 +0100 (CET) Received: by cust-asf.ponee.io (Postfix) id 1D99B160B2D; Thu, 15 Dec 2016 23:23:01 +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 6DC4D160B15 for ; Fri, 16 Dec 2016 00:23:00 +0100 (CET) Received: (qmail 80460 invoked by uid 500); 15 Dec 2016 23:22:59 -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 80438 invoked by uid 99); 15 Dec 2016 23:22:59 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 15 Dec 2016 23:22:59 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 5DD1B2C03DE for ; Thu, 15 Dec 2016 23:22:59 +0000 (UTC) Date: Thu, 15 Dec 2016 23:22:59 +0000 (UTC) From: "Appy (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HBASE-17324) PE Write workload results are wrong MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Thu, 15 Dec 2016 23:23:01 -0000 [ https://issues.apache.org/jira/browse/HBASE-17324?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Appy updated HBASE-17324: ------------------------- Description: [~jmspaggi] found this issue of write latencies being unreasonable. The reason is, we are using BufferedMutator with size 2MB, so most writes return very quick because they get buffered. That's giving us avg. latency like 39us. Needs fixing. {noformat} 16/12/14 12:46:04 INFO hbase.PerformanceEvaluation: Latency (us) : mean=39,37, min=2,00, max=27193408,00, stdDev=3443,01, 50th=2,00, 75th=2,00, 95th=3,00, 99th=5,00, 99.9th=9157,00, 99.99th=39685,59, 99.999th=160751,28 16/12/14 12:46:04 INFO hbase.PerformanceEvaluation: Num measures (latency) : 100000000 16/12/14 12:46:04 INFO hbase.PerformanceEvaluation: Mean = 39,37 Min = 2,00 Max = 27193408,00 StdDev = 3443,01 50th = 2,00 75th = 2,00 95th = 3,00 99th = 5,00 99.9th = 9157,00 99.99th = 39685,59 99.999th = 160751,28 {noformat} was: During writing, we are using BufferedMutator with size 2MB, so most writes return very quick because they get buffered. That's giving us avg. latency like 39us. Needs fixing. {noformat} 16/12/14 12:46:04 INFO hbase.PerformanceEvaluation: Latency (us) : mean=39,37, min=2,00, max=27193408,00, stdDev=3443,01, 50th=2,00, 75th=2,00, 95th=3,00, 99th=5,00, 99.9th=9157,00, 99.99th=39685,59, 99.999th=160751,28 16/12/14 12:46:04 INFO hbase.PerformanceEvaluation: Num measures (latency) : 100000000 16/12/14 12:46:04 INFO hbase.PerformanceEvaluation: Mean = 39,37 Min = 2,00 Max = 27193408,00 StdDev = 3443,01 50th = 2,00 75th = 2,00 95th = 3,00 99th = 5,00 99.9th = 9157,00 99.99th = 39685,59 99.999th = 160751,28 {noformat} > PE Write workload results are wrong > ----------------------------------- > > Key: HBASE-17324 > URL: https://issues.apache.org/jira/browse/HBASE-17324 > Project: HBase > Issue Type: Bug > Reporter: Appy > > [~jmspaggi] found this issue of write latencies being unreasonable. > The reason is, we are using BufferedMutator with size 2MB, so most writes return very quick because they get buffered. That's giving us avg. latency like 39us. Needs fixing. > {noformat} > 16/12/14 12:46:04 INFO hbase.PerformanceEvaluation: Latency (us) : mean=39,37, min=2,00, max=27193408,00, stdDev=3443,01, 50th=2,00, 75th=2,00, 95th=3,00, 99th=5,00, 99.9th=9157,00, 99.99th=39685,59, 99.999th=160751,28 > 16/12/14 12:46:04 INFO hbase.PerformanceEvaluation: Num measures (latency) : 100000000 > 16/12/14 12:46:04 INFO hbase.PerformanceEvaluation: Mean = 39,37 > Min = 2,00 > Max = 27193408,00 > StdDev = 3443,01 > 50th = 2,00 > 75th = 2,00 > 95th = 3,00 > 99th = 5,00 > 99.9th = 9157,00 > 99.99th = 39685,59 > 99.999th = 160751,28 > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)