Return-Path: X-Original-To: apmail-hbase-issues-archive@www.apache.org Delivered-To: apmail-hbase-issues-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 731E1180D6 for ; Fri, 5 Feb 2016 08:12:40 +0000 (UTC) Received: (qmail 45182 invoked by uid 500); 5 Feb 2016 08:12:40 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 45127 invoked by uid 500); 5 Feb 2016 08:12:40 -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 45097 invoked by uid 99); 5 Feb 2016 08:12:40 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 05 Feb 2016 08:12:40 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id DDDB22C1F57 for ; Fri, 5 Feb 2016 08:12:39 +0000 (UTC) Date: Fri, 5 Feb 2016 08:12:39 +0000 (UTC) From: "ramkrishna.s.vasudevan (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HBASE-15204) Try to estimate the cell count for adding into WALEdit 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/HBASE-15204?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15133811#comment-15133811 ] ramkrishna.s.vasudevan commented on HBASE-15204: ------------------------------------------------ How can we check the logs of the failed test case - The surefire folder where the logs are printed? > Try to estimate the cell count for adding into WALEdit > ------------------------------------------------------ > > Key: HBASE-15204 > URL: https://issues.apache.org/jira/browse/HBASE-15204 > Project: HBase > Issue Type: Sub-task > Components: regionserver > Reporter: ramkrishna.s.vasudevan > Assignee: ramkrishna.s.vasudevan > Fix For: 2.0.0 > > Attachments: HBASE-15204.patch, HBASE-15204_1.patch, HBASE-15204_1.patch, WAlEdit_add_allocation.jpg, WAlEdit_add_allocation_after_patch.jpg > > > The write path profiling shows that when we try to add Cells to WALEdits we try to do a lot of Array copy inorder to grow the Arraylist backing the WALEdits. In a simple one min profiling of the write path with 50 YCSB threads shows around 261MB of allocation done for the Array copy to happen. We can try to avoid that. -- This message was sent by Atlassian JIRA (v6.3.4#6332)