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 30F97103CA for ; Wed, 14 Aug 2013 14:50:51 +0000 (UTC) Received: (qmail 95463 invoked by uid 500); 14 Aug 2013 14:50:51 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 95190 invoked by uid 500); 14 Aug 2013 14:50:50 -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 95036 invoked by uid 99); 14 Aug 2013 14:50:49 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 14 Aug 2013 14:50:49 +0000 Date: Wed, 14 Aug 2013 14:50:49 +0000 (UTC) From: "Matteo Bertozzi (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HBASE-8760) possible loss of data in snapshot taken after region split 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-8760?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Matteo Bertozzi updated HBASE-8760: ----------------------------------- Attachment: HBASE-8760-0.94-v6.patch v6 explicity avoid to assign an offline region. workaround for HBASE-9204 that is still not fixed > possible loss of data in snapshot taken after region split > ---------------------------------------------------------- > > Key: HBASE-8760 > URL: https://issues.apache.org/jira/browse/HBASE-8760 > Project: HBase > Issue Type: Bug > Components: snapshots > Affects Versions: 0.94.8, 0.95.1 > Reporter: Jerry He > Fix For: 0.98.0, 0.95.2, 0.94.12 > > Attachments: HBase-8760-0.94.8.patch, HBase-8760-0.94.8-v1.patch, HBASE-8760-0.94-v4.patch, HBASE-8760-0.94-v5.patch, HBASE-8760-0.94-v6.patch, HBASE-8760-thz-v0.patch, HBASE-8760-thz-v1.patch, HBASE-8760-thz-v2.patch, HBASE-8760-thz-v3.patch, HBASE-8760-v4.patch, v4-patch-testing-0.94.zip, v4-patch-testing-0.95.2.zip > > > Right after a region split but before the daughter regions are compacted, we have two daughter regions containing Reference files to the parent hfiles. > If we take snapshot right at the moment, the snapshot will succeed, but it will only contain the daughter Reference files. Since there is no hold on the parent hfiles, they will be deleted by the HFile Cleaner after they are no longer needed by the daughter regions soon after. > A minimum we need to do is the keep these parent hfiles from being deleted. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira