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 B17EE200BF6 for ; Tue, 10 Jan 2017 22:47:05 +0100 (CET) Received: by cust-asf.ponee.io (Postfix) id B0087160B3D; Tue, 10 Jan 2017 21:47:05 +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 056E7160B2C for ; Tue, 10 Jan 2017 22:47:04 +0100 (CET) Received: (qmail 56946 invoked by uid 500); 10 Jan 2017 21:46:59 -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 56844 invoked by uid 99); 10 Jan 2017 21:46:58 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 10 Jan 2017 21:46:58 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id C29972C2ABC for ; Tue, 10 Jan 2017 21:46:58 +0000 (UTC) Date: Tue, 10 Jan 2017 21:46:58 +0000 (UTC) From: "Zach York (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HBASE-17437) Support specifying a WAL directory outside of the root directory MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Tue, 10 Jan 2017 21:47:05 -0000 [ https://issues.apache.org/jira/browse/HBASE-17437?page=3Dcom.atlassia= n.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D158= 16288#comment-15816288 ]=20 Zach York commented on HBASE-17437: ----------------------------------- Okay, I agree it would be best to have some safeguards for this. > Support specifying a WAL directory outside of the root directory > ---------------------------------------------------------------- > > Key: HBASE-17437 > URL: https://issues.apache.org/jira/browse/HBASE-17437 > Project: HBase > Issue Type: Improvement > Components: Filesystem Integration, wal > Affects Versions: 1.2.4 > Reporter: Yishan Yang > Assignee: Yishan Yang > Labels: patch > Fix For: 2.0.0, 1.4.0 > > Attachments: hbase-17437-branch-1.2.patch, hbase-17437-master.pat= ch > > > Currently, the WAL and the StoreFiles need to be on the same FileSystem. = Some FileSystems (such as Amazon S3) don=E2=80=99t support append or consis= tent writes. These two properties are imperative for the WAL in order to av= oid loss of writes. However, StoreFiles don=E2=80=99t necessarily need the = same consistency guarantees (since writes are cached locally and if writes = fail, they can always be replayed from the WAL). > =20 > This JIRA aims to allow users to configure a log directory (for WALs) tha= t is outside of the root directory or even in a different FileSystem. The d= efault value will still put the log directory under the root directory. -- This message was sent by Atlassian JIRA (v6.3.4#6332)