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 C0C94181A0 for ; Wed, 14 Oct 2015 18:45:21 +0000 (UTC) Received: (qmail 2212 invoked by uid 500); 14 Oct 2015 18:45:05 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 2159 invoked by uid 500); 14 Oct 2015 18:45:05 -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 2145 invoked by uid 99); 14 Oct 2015 18:45:05 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 14 Oct 2015 18:45:05 +0000 Date: Wed, 14 Oct 2015 18:45:05 +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=14957496#comment-14957496 ] Vladimir Rodionov commented on HBASE-14511: ------------------------------------------- Sure, I will take a look, [~jingcheng.du@intel.com]. > 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.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)