Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id 3B8FB200C40 for ; Thu, 9 Mar 2017 03:16:45 +0100 (CET) Received: by cust-asf.ponee.io (Postfix) id 3A408160B88; Thu, 9 Mar 2017 02:16:45 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id 8C20B160B83 for ; Thu, 9 Mar 2017 03:16:44 +0100 (CET) Received: (qmail 50816 invoked by uid 500); 9 Mar 2017 02:16:43 -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 50800 invoked by uid 99); 9 Mar 2017 02:16:43 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd4-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 09 Mar 2017 02:16:43 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd4-us-west.apache.org (ASF Mail Server at spamd4-us-west.apache.org) with ESMTP id 51ED3C1D3C for ; Thu, 9 Mar 2017 02:16:43 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd4-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 0.652 X-Spam-Level: X-Spam-Status: No, score=0.652 tagged_above=-999 required=6.31 tests=[RP_MATCHES_RCVD=-0.001, SPF_NEUTRAL=0.652, URIBL_BLOCKED=0.001] autolearn=disabled Received: from mx1-lw-eu.apache.org ([10.40.0.8]) by localhost (spamd4-us-west.apache.org [10.40.0.11]) (amavisd-new, port 10024) with ESMTP id 6hf2rpV1w8H0 for ; Thu, 9 Mar 2017 02:16:42 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-eu.apache.org (ASF Mail Server at mx1-lw-eu.apache.org) with ESMTP id 448975FACA for ; Thu, 9 Mar 2017 02:16:42 +0000 (UTC) Received: from jira-lw-us.apache.org (unknown [207.244.88.139]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id D3BF3E0A4B for ; Thu, 9 Mar 2017 02:16:38 +0000 (UTC) Received: from jira-lw-us.apache.org (localhost [127.0.0.1]) by jira-lw-us.apache.org (ASF Mail Server at jira-lw-us.apache.org) with ESMTP id 2A549243B0 for ; Thu, 9 Mar 2017 02:16:38 +0000 (UTC) Date: Thu, 9 Mar 2017 02:16:38 +0000 (UTC) From: "Allan Yang (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HBASE-17757) Unify blocksize after encoding to decrease memory fragment MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Thu, 09 Mar 2017 02:16:45 -0000 [ https://issues.apache.org/jira/browse/HBASE-17757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15902351#comment-15902351 ] Allan Yang commented on HBASE-17757: ------------------------------------ {quote} The tool seems useful for this feature, make the patch in new issue? {quote} Sure, no problem. > Unify blocksize after encoding to decrease memory fragment > ----------------------------------------------------------- > > Key: HBASE-17757 > URL: https://issues.apache.org/jira/browse/HBASE-17757 > Project: HBase > Issue Type: New Feature > Reporter: Allan Yang > Assignee: Allan Yang > Attachments: HBASE-17757.patch > > > Usually, we store encoded block(uncompressed) in blockcache/bucketCache. Though we have set the blocksize, after encoding, blocksize is varied. Varied blocksize will cause memory fragment problem, which will result in more FGC finally.In order to relief the memory fragment, This issue adjusts the encoded block to a unified size. -- This message was sent by Atlassian JIRA (v6.3.15#6346)