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 7CCDA187A7 for ; Tue, 20 Oct 2015 16:32:28 +0000 (UTC) Received: (qmail 36335 invoked by uid 500); 20 Oct 2015 16:32:28 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 35926 invoked by uid 500); 20 Oct 2015 16:32:28 -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 35566 invoked by uid 99); 20 Oct 2015 16:32:27 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 20 Oct 2015 16:32:27 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id C54B12C1F6D for ; Tue, 20 Oct 2015 16:32:27 +0000 (UTC) Date: Tue, 20 Oct 2015 16:32:27 +0000 (UTC) From: "Anoop Sam John (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HBASE-14643) Avoid Splits from once again opening a closed reader for fetching the first and last key 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-14643?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Anoop Sam John updated HBASE-14643: ----------------------------------- Fix Version/s: 1.3.0 1.2.0 2.0.0 > Avoid Splits from once again opening a closed reader for fetching the first and last key > ---------------------------------------------------------------------------------------- > > Key: HBASE-14643 > URL: https://issues.apache.org/jira/browse/HBASE-14643 > Project: HBase > Issue Type: Improvement > Components: regionserver > Affects Versions: 2.0.0 > Reporter: ramkrishna.s.vasudevan > Assignee: Heng Chen > Fix For: 2.0.0, 1.2.0, 1.3.0 > > Attachments: HBASE-14643.patch, HBASE-14643_v1.patch, HBASE-14643_v2.patch, HBASE-14643_v3.patch, HBASE-14643_v4.patch, HBASE-14643_v5.patch > > > Currently split flow is such that we close the parent region and all its store file readers are also closed. After that inorder to split the reference files we need the first and last keys for which once again open the readers on those store files. This could be costlier operation considering the fact that it has to contact the HDFS for this close and open operation. This JIRA is to see if we can improve this. -- This message was sent by Atlassian JIRA (v6.3.4#6332)