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 D80CEDE31 for ; Wed, 15 May 2013 16:37:16 +0000 (UTC) Received: (qmail 78806 invoked by uid 500); 15 May 2013 16:37:16 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 78777 invoked by uid 500); 15 May 2013 16:37:16 -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 78768 invoked by uid 99); 15 May 2013 16:37:16 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 15 May 2013 16:37:16 +0000 Date: Wed, 15 May 2013 16:37:16 +0000 (UTC) From: "Ted Yu (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Assigned] (HBASE-8521) Cells cannot be overwritten with bulk loaded HFiles 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-8521?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Ted Yu reassigned HBASE-8521: ----------------------------- Assignee: (was: Ted Yu) > Cells cannot be overwritten with bulk loaded HFiles > --------------------------------------------------- > > Key: HBASE-8521 > URL: https://issues.apache.org/jira/browse/HBASE-8521 > Project: HBase > Issue Type: Bug > Affects Versions: 0.92.1 > Reporter: Jonathan Natkins > Attachments: HBASE-8521.diff, hfileDirs.tar.gz > > > Let's say you have a pre-built HFile that contains a cell: > ('rowkey1', 'family1', 'qual1', 1234L, 'value1') > We bulk load this first HFile. Now, let's create a second HFile that contains a cell that overwrites the first: > ('rowkey1', 'family1', 'qual1', 1234L, 'value2') > That gets bulk loaded into the table, but the value that HBase bubbles up is still 'value1'. > It seems that there's no way to overwrite a cell for a particular timestamp without an explicit put operation. This seems to be the case even after minor and major compactions happen. > My guess is that this is pretty closely related to the sequence number work being done on the compaction algorithm via HBASE-7842, but I'm not sure if one of would fix the other. -- 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