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 6CF4211083 for ; Thu, 1 May 2014 21:08:33 +0000 (UTC) Received: (qmail 10123 invoked by uid 500); 1 May 2014 21:08:22 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 10048 invoked by uid 500); 1 May 2014 21:08:21 -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 9999 invoked by uid 99); 1 May 2014 21:08:19 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 01 May 2014 21:08:19 +0000 Date: Thu, 1 May 2014 21:08:19 +0000 (UTC) From: "Tianying Chang (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HBASE-10935) support snapshot policy where flush memstore can be skipped to prevent production cluster freeze 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-10935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13987000#comment-13987000 ] Tianying Chang commented on HBASE-10935: ---------------------------------------- Comments addressed and patch to trunk attached. > support snapshot policy where flush memstore can be skipped to prevent production cluster freeze > ------------------------------------------------------------------------------------------------ > > Key: HBASE-10935 > URL: https://issues.apache.org/jira/browse/HBASE-10935 > Project: HBase > Issue Type: New Feature > Components: shell, snapshots > Affects Versions: 0.94.7, 0.94.18 > Reporter: Tianying Chang > Assignee: Tianying Chang > Priority: Minor > Fix For: 0.99.0, 0.94.20 > > Attachments: jira-10935-trunk.patch, jira-10935.patch > > > We are using snapshot feature to do HBase disaster recovery. We will do snapshot in our production cluster periodically. The current flush snapshot policy require all regions of the table to coordinate to prevent write and do flush at the same time. Since we use WALPlayer to complete the data that is not in the snapshot HFile, we don't need the snapshot to do coordinated flush. The snapshot just recored all the HFile that are already there. > I added the parameter in the HBase shell. So people can choose to use the NoFlush snapshot when they need, like below. Otherwise, the default flush snpahot support is not impacted. > >snaphot 'TestTable', 'TestSnapshot', 'skipFlush' -- This message was sent by Atlassian JIRA (v6.2#6252)