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 824D5181AA for ; Tue, 22 Dec 2015 19:05:47 +0000 (UTC) Received: (qmail 61482 invoked by uid 500); 22 Dec 2015 19:05:47 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 61379 invoked by uid 500); 22 Dec 2015 19:05:47 -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 61310 invoked by uid 99); 22 Dec 2015 19:05:47 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 22 Dec 2015 19:05:47 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id BAE9E2C1F5D for ; Tue, 22 Dec 2015 19:05:46 +0000 (UTC) Date: Tue, 22 Dec 2015 19:05:46 +0000 (UTC) From: "Vladimir Rodionov (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HBASE-14511) StoreFile.Writer Meta Plugin 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-14511?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15068560#comment-15068560 ] Vladimir Rodionov commented on HBASE-14511: ------------------------------------------- [~enis], yes. going to think about context object. > StoreFile.Writer Meta Plugin > ---------------------------- > > Key: HBASE-14511 > URL: https://issues.apache.org/jira/browse/HBASE-14511 > Project: HBase > Issue Type: New Feature > Reporter: Vladimir Rodionov > Assignee: Vladimir Rodionov > Attachments: HBASE-14511-v3.patch, HBASE-14511-v4.patch, HBASE-14511.v1.patch, HBASE-14511.v2.patch > > > During my work on a new compaction policies (HBASE-14468, HBASE-14477) I had to modify the existing code of a StoreFile.Writer to add additional meta-info required by these new policies. I think that it should be done by means of a new Plugin framework, because this seems to be a general capability/feature. > As a future enhancement this can become a part of a more general StoreFileWriter/Reader plugin architecture. But I need only Meta section of a store file. > This could be used, for example, to collect rowkeys distribution information during hfile creation. This info can be used later to find the optimal region split key or to create optimal set of sub-regions for M/R jobs or other jobs which can operate on a sub-region level. -- This message was sent by Atlassian JIRA (v6.3.4#6332)