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 9B5F410ABC for ; Fri, 8 Nov 2013 20:57:18 +0000 (UTC) Received: (qmail 71206 invoked by uid 500); 8 Nov 2013 20:57:18 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 71117 invoked by uid 500); 8 Nov 2013 20:57:18 -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 71108 invoked by uid 99); 8 Nov 2013 20:57:18 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 08 Nov 2013 20:57:18 +0000 Date: Fri, 8 Nov 2013 20:57:18 +0000 (UTC) From: "Aleksandr Shulman (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HBASE-5335) Dynamic Schema Configurations 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-5335?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Aleksandr Shulman updated HBASE-5335: ------------------------------------- Labels: configuration online_schema_change schema (was: configuration schema) > Dynamic Schema Configurations > ----------------------------- > > Key: HBASE-5335 > URL: https://issues.apache.org/jira/browse/HBASE-5335 > Project: HBase > Issue Type: New Feature > Reporter: Nicolas Spiegelberg > Assignee: Nicolas Spiegelberg > Labels: configuration, online_schema_change, schema > Fix For: 0.94.7, 0.95.0 > > Attachments: ASF.LICENSE.NOT.GRANTED--D2247.1.patch, ASF.LICENSE.NOT.GRANTED--D2247.2.patch, ASF.LICENSE.NOT.GRANTED--D2247.3.patch, ASF.LICENSE.NOT.GRANTED--D2247.4.patch, ASF.LICENSE.NOT.GRANTED--D2247.5.patch, ASF.LICENSE.NOT.GRANTED--D2247.6.patch, ASF.LICENSE.NOT.GRANTED--D2247.7.patch, ASF.LICENSE.NOT.GRANTED--D2247.8.patch, HBASE-5335-trunk-2.patch, HBASE-5335-trunk-3.patch, HBASE-5335-trunk-3.patch, HBASE-5335-trunk-4.patch, HBASE-5335-trunk.patch > > > Currently, the ability for a core developer to add per-table & per-CF configuration settings is very heavyweight. You need to add a reserved keyword all the way up the stack & you have to support this variable long-term if you're going to expose it explicitly to the user. This has ended up with using Configuration.get() a lot because it is lightweight and you can tweak settings while you're trying to understand system behavior [since there are many config params that may never need to be tuned]. We need to add the ability to put & read arbitrary KV settings in the HBase schema. Combined with online schema change, this will allow us to safely iterate on configuration settings. -- This message was sent by Atlassian JIRA (v6.1#6144)