From dev-return-79105-archive-asf-public=cust-asf.ponee.io@hbase.apache.org Mon May 4 11:56:03 2020 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [207.244.88.153]) by mx-eu-01.ponee.io (Postfix) with SMTP id 9A4B6180608 for ; Mon, 4 May 2020 13:56:03 +0200 (CEST) Received: (qmail 59132 invoked by uid 500); 4 May 2020 11:56:02 -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 58983 invoked by uid 99); 4 May 2020 11:56:02 -0000 Received: from mailrelay1-us-west.apache.org (HELO mailrelay1-us-west.apache.org) (209.188.14.139) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 04 May 2020 11:56:02 +0000 Received: from jira-he-de.apache.org (static.172.67.40.188.clients.your-server.de [188.40.67.172]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id 7297AE2FAF for ; Mon, 4 May 2020 11:56:00 +0000 (UTC) Received: from jira-he-de.apache.org (localhost.localdomain [127.0.0.1]) by jira-he-de.apache.org (ASF Mail Server at jira-he-de.apache.org) with ESMTP id 58292780629 for ; Mon, 4 May 2020 11:56:00 +0000 (UTC) Date: Mon, 4 May 2020 11:56:00 +0000 (UTC) From: "Peter Somogyi (Jira)" To: dev@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Reopened] (HBASE-24302) Add an "ignoreTimestamps" option (defaulted to false) to HashTable/SyncTable tool MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/HBASE-24302?page=3Dcom.atlassi= an.jira.plugin.system.issuetabpanels:all-tabpanel ] Peter Somogyi reopened HBASE-24302: ----------------------------------- Please also commit this to branch-2.3. > Add an "ignoreTimestamps" option (defaulted to false) to HashTable/SyncTa= ble tool > -------------------------------------------------------------------------= -------- > > Key: HBASE-24302 > URL: https://issues.apache.org/jira/browse/HBASE-24302 > Project: HBase > Issue Type: Improvement > Affects Versions: 3.0.0-alpha-1, 2.3.0, 2.2.5 > Reporter: Wellington Chevreuil > Assignee: Wellington Chevreuil > Priority: Major > Fix For: 3.0.0-alpha-1, 2.3.0, 2.2.5 > > > Currently, when hashing and comparing values between a source and a targe= t table, HashTable/SyncTable always consider cell timestamp values. However= , cell timestamp values are not always relevant for client applications, so= these use cases could benefit of a more flexible comparison logic where ti= mestamps could be ignored. > For such scenarios, HashTable/SyncTable could have better performance, si= nce cells with only timestamps diverging would not be copied.=C2=A0 > Another case that would benefit from this option is when bulk deletes are= wrongly applied at target. At the moment, HashTable/SyncTable on it's own = is not capable of syncing back the clusters, as the source Puts would have = an older TS than the delete markers in the target. That would require targe= t to complete major compaction on the whole table before HashTable/SyncTabl= e could be run. -- This message was sent by Atlassian Jira (v8.3.4#803005)