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 A208918147 for ; Tue, 15 Mar 2016 02:21:27 +0000 (UTC) Received: (qmail 19396 invoked by uid 500); 15 Mar 2016 02:21:20 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 19109 invoked by uid 500); 15 Mar 2016 02:21:20 -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 13465 invoked by uid 99); 15 Mar 2016 02:19:33 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 15 Mar 2016 02:19:33 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 9C9A42C14F4 for ; Tue, 15 Mar 2016 02:19:33 +0000 (UTC) Date: Tue, 15 Mar 2016 02:19:33 +0000 (UTC) From: "Phil Yang (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HBASE-15325) ResultScanner allowing partial result will miss the rest of the row if the region is moved between two rpc requests 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-15325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15194586#comment-15194586 ] Phil Yang commented on HBASE-15325: ----------------------------------- cell missing issue is much more easy to fix. I can split the patch into two parts > ResultScanner allowing partial result will miss the rest of the row if the region is moved between two rpc requests > ------------------------------------------------------------------------------------------------------------------- > > Key: HBASE-15325 > URL: https://issues.apache.org/jira/browse/HBASE-15325 > Project: HBase > Issue Type: Bug > Components: dataloss, Scanners > Affects Versions: 1.2.0, 1.1.3 > Reporter: Phil Yang > Assignee: Phil Yang > Priority: Critical > Attachments: 15325-test.txt, HBASE-15325-v1.txt, HBASE-15325-v2.txt, HBASE-15325-v3.txt, HBASE-15325-v5.txt, HBASE-15325-v6.1.txt, HBASE-15325-v6.2.txt, HBASE-15325-v6.3.txt, HBASE-15325-v6.4.txt, HBASE-15325-v6.5.txt, HBASE-15325-v6.txt, HBASE-15325-v7.patch > > > HBASE-11544 allow scan rpc return partial of a row to reduce memory usage for one rpc request. And client can setAllowPartial or setBatch to get several cells in a row instead of the whole row. > However, the status of the scanner is saved on server and we need this to get the next part if there is a partial result before. If we move the region to another RS, client will get a NotServingRegionException and open a new scanner to the new RS which will be regarded as a new scan from the end of this row. So the rest cells of the row of last result will be missing. -- This message was sent by Atlassian JIRA (v6.3.4#6332)