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 10D4918C47 for ; Tue, 25 Aug 2015 21:58:48 +0000 (UTC) Received: (qmail 2965 invoked by uid 500); 25 Aug 2015 21:58:47 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 2921 invoked by uid 500); 25 Aug 2015 21:58:47 -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 2904 invoked by uid 99); 25 Aug 2015 21:58:47 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 25 Aug 2015 21:58:47 +0000 Date: Tue, 25 Aug 2015 21:58:47 +0000 (UTC) From: "Enis Soztutar (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HBASE-14302) TableSnapshotInputFormat should not create back references when restoring snapshot 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-14302?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14712053#comment-14712053 ] Enis Soztutar commented on HBASE-14302: --------------------------------------- I've pushed this to 0.98 as well since it is a bug fix. cc [~apurtell]. > TableSnapshotInputFormat should not create back references when restoring snapshot > ---------------------------------------------------------------------------------- > > Key: HBASE-14302 > URL: https://issues.apache.org/jira/browse/HBASE-14302 > Project: HBase > Issue Type: Bug > Reporter: Enis Soztutar > Assignee: Enis Soztutar > Fix For: 2.0.0, 1.2.0, 1.3.0, 0.98.15, 1.0.3, 1.1.3 > > Attachments: hbase-14302_v1.patch > > > TableSnapshotInputFormat restores the snapshot to a temporary directory that is outside the HBase's root directory so that it can read from the restored snapshot and also refer to hfiles in the actual root directory. > In restoring the snapshot, we create new hfilelinks in the ephemeral location. Creating new hfile links also creates "back references" for GC. These back references are dangling since the restore location is outside the root dir, and requires a WRITE permission to the root dir (as opposed to just READ permission) to be able to run the MR-over-snapshot job. -- This message was sent by Atlassian JIRA (v6.3.4#6332)