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 1246910774 for ; Thu, 19 Mar 2015 06:06:39 +0000 (UTC) Received: (qmail 40608 invoked by uid 500); 19 Mar 2015 06:06:38 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 40562 invoked by uid 500); 19 Mar 2015 06:06:38 -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 40550 invoked by uid 99); 19 Mar 2015 06:06:38 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 19 Mar 2015 06:06:38 +0000 Date: Thu, 19 Mar 2015 06:06:38 +0000 (UTC) From: "Hudson (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HBASE-13199) Some small improvements on canary tool 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-13199?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14368570#comment-14368570 ] Hudson commented on HBASE-13199: -------------------------------- SUCCESS: Integrated in HBase-TRUNK #6277 (See [https://builds.apache.org/job/HBase-TRUNK/6277/]) HBASE-13199 Some small improvements on canary tool (Shaohui Liu) (liushaohui: rev cf7ef936d20b98482a48926a194772c66d3234c1) * hbase-server/src/main/java/org/apache/hadoop/hbase/tool/Canary.java > Some small improvements on canary tool > -------------------------------------- > > Key: HBASE-13199 > URL: https://issues.apache.org/jira/browse/HBASE-13199 > Project: HBase > Issue Type: Improvement > Affects Versions: 2.0.0 > Reporter: Liu Shaohui > Assignee: Liu Shaohui > Fix For: 2.0.0 > > Attachments: HBASE-13199-v1.diff, HBASE-13199-v2.diff, HBASE-13199-v3.diff, HBASE-13199-v4.diff > > > Improvements > - Make the sniff of region and regionserver parallel to support large cluster with 10000+ region and 500+ regionservers using thread pool. > - Set cacheblock to false in get and scan to avoid influence to block cache. > - Add FirstKeyOnlyFilter to get and scan to avoid read and translate too many data from HBase. There may be many column under a column family in a flat-wide table. > - Select the region randomly when sniffing a regionserver. > - Make the sink class of canary configurable > [~stack] > Suggestions are welcomed. Thanks~ > Another question is that why to check each column family with separate requests when sniffing a region? Can we just check a column family of a region? -- This message was sent by Atlassian JIRA (v6.3.4#6332)