Return-Path: X-Original-To: apmail-hbase-dev-archive@www.apache.org Delivered-To: apmail-hbase-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 824A617A2F for ; Sat, 11 Apr 2015 00:47:15 +0000 (UTC) Received: (qmail 80454 invoked by uid 500); 11 Apr 2015 00:47:13 -0000 Delivered-To: apmail-hbase-dev-archive@hbase.apache.org Received: (qmail 80361 invoked by uid 500); 11 Apr 2015 00:47:13 -0000 Mailing-List: contact dev-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@hbase.apache.org Delivered-To: mailing list dev@hbase.apache.org Received: (qmail 80253 invoked by uid 99); 11 Apr 2015 00:47:13 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 11 Apr 2015 00:47:13 +0000 Date: Sat, 11 Apr 2015 00:47:13 +0000 (UTC) From: "Andrew Purtell (JIRA)" To: dev@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Resolved] (HBASE-4056) Support for using faster storage for write-ahead log 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-4056?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Andrew Purtell resolved HBASE-4056. ----------------------------------- Resolution: Incomplete Incomplete here, superseded by other issues > Support for using faster storage for write-ahead log > ---------------------------------------------------- > > Key: HBASE-4056 > URL: https://issues.apache.org/jira/browse/HBASE-4056 > Project: HBase > Issue Type: New Feature > Reporter: Praveen Kumar > Priority: Minor > Labels: features > > On clusters with heterogeneous storage components like hard drives and flash memory, it could be beneficial to use flash memory for write-ahead log. This can be accomplished by using client side mount table support (HADOOP-7257) that is offered by HDFS federation (HDFS-1052) feature. One can define two HDFS namespaces (faster and slower), and configure HBase to use faster storage namespace for storing WAL. > This is an abstract task that captures the idea. More brainstorming and subtasks identification to follow. -- This message was sent by Atlassian JIRA (v6.3.4#6332)