From dev-return-1979-archive-asf-public=cust-asf.ponee.io@tephra.incubator.apache.org Mon Jan 22 08:19:04 2018 Return-Path: X-Original-To: archive-asf-public@eu.ponee.io Delivered-To: archive-asf-public@eu.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by mx-eu-01.ponee.io (Postfix) with ESMTP id 2C4B5180609 for ; Mon, 22 Jan 2018 08:19:04 +0100 (CET) Received: by cust-asf.ponee.io (Postfix) id 1C2D7160C4B; Mon, 22 Jan 2018 07:19:04 +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 620C0160C3A for ; Mon, 22 Jan 2018 08:19:03 +0100 (CET) Received: (qmail 28882 invoked by uid 500); 22 Jan 2018 07:19:02 -0000 Mailing-List: contact dev-help@tephra.incubator.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@tephra.incubator.apache.org Delivered-To: mailing list dev@tephra.incubator.apache.org Received: (qmail 28871 invoked by uid 99); 22 Jan 2018 07:19:02 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd3-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 22 Jan 2018 07:19:02 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd3-us-west.apache.org (ASF Mail Server at spamd3-us-west.apache.org) with ESMTP id 083611807E5 for ; Mon, 22 Jan 2018 07:19:02 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd3-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -107.161 X-Spam-Level: X-Spam-Status: No, score=-107.161 tagged_above=-999 required=6.31 tests=[ENV_AND_HDR_SPF_MATCH=-0.5, KAM_ASCII_DIVIDERS=0.8, KAM_INFOUSMEBIZ=0.75, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_SPF_WL=-7.5, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-us.apache.org ([10.40.0.8]) by localhost (spamd3-us-west.apache.org [10.40.0.10]) (amavisd-new, port 10024) with ESMTP id XgsGa0zyRpqP for ; Mon, 22 Jan 2018 07:19:01 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-us.apache.org (ASF Mail Server at mx1-lw-us.apache.org) with ESMTP id 01B425F1F3 for ; Mon, 22 Jan 2018 07:19:01 +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 7B6A6E02D6 for ; Mon, 22 Jan 2018 07:19:00 +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 3762421208 for ; Mon, 22 Jan 2018 07:19:00 +0000 (UTC) Date: Mon, 22 Jan 2018 07:19:00 +0000 (UTC) From: "Patrick Xiaoman Huang (JIRA)" To: dev@tephra.incubator.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Comment Edited] (TEPHRA-247) Avoid encoding the transaction multiple times MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/TEPHRA-247?page=3Dcom.atlassian= .jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D1633= 0075#comment-16330075 ]=20 Patrick Xiaoman Huang edited comment on TEPHRA-247 at 1/22/18 7:18 AM: ----------------------------------------------------------------------- I have tried code of Parquet DeltaBinaryPackingWriter using delta and binar= y packing store integer which algorithm and format is inspired by D. Lemire= 's paper([http://lemire.me/blog/archives/2012/09/12/fast-integer-compressio= n-decoding-billions-of-integers-per-second/)]=C2=A0to compress 500s long nu= mber of writerPointer, got the result of about 8xx or 9xx bytes that should= be 500*8=3D4000 bytes, means it can be compressd about 77%. is it possible we hack this code to compress inProgress array? As invalids is a system invalid list normally grow but change not so freque= ntly, is this can be push to region servers as cache? was (Author: mk926): I have tried code of Parquet DeltaBinaryPackingWriter using delta and binar= y packing store integer which algorithm and format is inspired by D. Lemire= 's paper([http://lemire.me/blog/archives/2012/09/12/fast-integer-compressio= n-decoding-billions-of-integers-per-second/)]=C2=A0to compress 500s long nu= mber of writerPointer, got the result of about 8xx or 9xx bytes that should= be 500*8=3D4000 bytes, means it can be compressd about 77%. is it possible we hack this code to compress inProgress array? As invalids is a system invalid list normally grow but change not so requen= tly, is this can be push to region servers as cache? > Avoid encoding the transaction multiple times > --------------------------------------------- > > Key: TEPHRA-247 > URL: https://issues.apache.org/jira/browse/TEPHRA-247 > Project: Tephra > Issue Type: Improvement > Components: core, manager > Affects Versions: 0.12.0-incubating > Reporter: Andreas Neumann > Assignee: Andreas Neumann > Priority: Major > Attachments: design.jpg > > > Currently, the same transaction object is encoded again and again for eve= ry Get performed in HBase. It would be better to cache the encoded transact= ion for the duration of the transaction and reuse it,=20 -- This message was sent by Atlassian JIRA (v7.6.3#76005)